IntegrationBase.t.sol

// SPDX-License-Identifier: BUSL-1.1
pragma solidity ^0.8.27;

import "forge-std/Test.sol";

import "@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol";
import "@openzeppelin/contracts/utils/Strings.sol";

import "src/contracts/libraries/BeaconChainProofs.sol";
import "src/contracts/libraries/SlashingLib.sol";

import "src/test/integration/TypeImporter.t.sol";
import "src/test/integration/IntegrationDeployer.t.sol";
import "src/test/integration/TimeMachine.t.sol";
import "src/test/integration/users/User.t.sol";

abstract contract IntegrationBase is IntegrationDeployer, TypeImporter {
    using StdStyle for *;
    using SlashingLib for *;
    using Math for uint;
    using Strings for *;
    using print for *;

    using ArrayLib for *;

    uint numStakers = 0;
    uint numOperators = 0;
    uint numAVSs = 0;

    // Lists of operators created before the m2 (not slashing) upgrade
    //
    // When we call _upgradeEigenLayerContracts, we iterate over
    // these lists and migrate perform the standard migration actions
    // for each user
    User[] operatorsToMigrate;
    User[] stakersToMigrate;

    /// Gen/Init methods:

    /// @dev Create a new user according to configured random variants.
    /// This user is ready to deposit into some strategies and has some underlying token balances
    function _newRandomStaker() internal returns (User, IStrategy[] memory, uint[] memory) {
        (User staker, IStrategy[] memory strategies, uint[] memory tokenBalances) = _randUser(_getStakerName());

        if (!isUpgraded) stakersToMigrate.push(staker);

        assert_HasUnderlyingTokenBalances(staker, strategies, tokenBalances, "_newRandomStaker: failed to award token balances");
        return (staker, strategies, tokenBalances);
    }

    /// Given a list of strategies, creates a new user with random token balances in each underlying token
    function _newStaker(IStrategy[] memory strategies) internal returns (User, uint[] memory) {
        (User staker, uint[] memory tokenBalances) = _randUser(_getStakerName(), strategies);

        if (!isUpgraded) stakersToMigrate.push(staker);

        assert_HasUnderlyingTokenBalances(staker, strategies, tokenBalances, "_newStaker: failed to award token balances");
        return (staker, tokenBalances);
    }

    /// @dev Creates a blank slate user with no assets
    function _newEmptyStaker() internal returns (User) {
        User staker = _randUser_NoAssets(_getStakerName());

        if (!isUpgraded) stakersToMigrate.push(staker);

        return staker;
    }

    /// @dev Create a new operator according to configured random variants.
    /// This user will immediately deposit their randomized assets into eigenlayer.
    function _newRandomOperator() internal returns (User, IStrategy[] memory, uint[] memory) {
        /// TODO: Allow operators to have ETH
        (User operator, IStrategy[] memory strategies, uint[] memory tokenBalances) = _randUser_NoETH(_getOperatorName());

        /// Operators are created with all assets already deposited
        uint[] memory addedShares = _calculateExpectedShares(strategies, tokenBalances);
        operator.depositIntoEigenlayer(strategies, tokenBalances);

        /// Registration flow is the same pre and post redistribution upgrade
        operator.registerAsOperator();

        assert_Snap_Added_OperatorShares(operator, strategies, addedShares, "_newRandomOperator: failed to award shares to operator");
        assertTrue(delegationManager.isOperator(address(operator)), "_newRandomOperator: operator should be registered");
        assertEq(delegationManager.delegatedTo(address(operator)), address(operator), "_newRandomOperator: should be self-delegated");
        return (operator, strategies, tokenBalances);
    }

    /// @dev Creates a new operator with no assets
    function _newRandomOperator_NoAssets() internal returns (User) {
        User operator = _randUser_NoAssets(_getOperatorName());

        /// Registration flow is the same pre and post redistribution upgrade
        operator.registerAsOperator();

        assertTrue(delegationManager.isOperator(address(operator)), "_newRandomOperator: operator should be registered");
        assertEq(delegationManager.delegatedTo(address(operator)), address(operator), "_newRandomOperator: should be self-delegated");
        return operator;
    }

    /// @dev Name a newly-created staker ("staker1", "staker2", ...)
    function _getStakerName() private returns (string memory) {
        numStakers++;

        string memory stakerNum = cheats.toString(numStakers);
        string memory namePrefix = isUpgraded ? "staker" : "pre-redistribution-staker";

        return string.concat(namePrefix, stakerNum);
    }

    /// @dev Name a newly-created operator ("operator1", "operator2", ...)
    function _getOperatorName() private returns (string memory) {
        numOperators++;

        string memory operatorNum = cheats.toString(numOperators);
        string memory namePrefix = isUpgraded ? "operator" : "pre-redistribution-operator";

        return string.concat(namePrefix, operatorNum);
    }

    function _newRandomAVS() internal returns (AVS avs, OperatorSet[] memory operatorSets) {
        string memory avsName = string.concat("avs", numAVSs.toString());
        avs = _genRandAVS(avsName);
        avs.updateAVSMetadataURI("https://example.com");
        operatorSets = avs.createOperatorSets(_randomStrategies());
        ++numAVSs;
    }

    /// @dev Creates a new AVS with the *soon to be deprecated* `createOperatorSets` method without a slasher
    /// @dev This method is only used by the slasher migration test
    function _newRandomAVS_v1CreateSet() internal returns (AVS avs, OperatorSet[] memory operatorSets) {
        string memory avsName = string.concat("avs", numAVSs.toString());
        avs = _genRandAVS(avsName);
        avs.updateAVSMetadataURI("https://example.com");
        operatorSets = avs.createOperatorSets_v1(_randomStrategies());
        ++numAVSs;
    }

    function _newRandomAVS_WithBN254() internal returns (AVS avs, OperatorSet[] memory operatorSets) {
        string memory avsName = string.concat("avs", numAVSs.toString());
        avs = _genRandAVS(avsName);
        avs.updateAVSMetadataURI("https://example.com");
        operatorSets = avs.createOperatorSets(_randomStrategies());

        for (uint i = 0; i < operatorSets.length; i++) {
            avs.configureOperatorSet(operatorSets[i], IKeyRegistrarTypes.CurveType.BN254);
        }
        ++numAVSs;
    }

    function _newRandomAVS_WithECDSA() internal returns (AVS avs, OperatorSet[] memory operatorSets) {
        string memory avsName = string.concat("avs", numAVSs.toString());
        avs = _genRandAVS(avsName);
        avs.updateAVSMetadataURI("https://example.com");
        operatorSets = avs.createOperatorSets(_randomStrategies());

        for (uint i = 0; i < operatorSets.length; i++) {
            avs.configureOperatorSet(operatorSets[i], IKeyRegistrarTypes.CurveType.ECDSA);
        }
        ++numAVSs;
    }

    /// @dev Send a random amount of ETH (up to 10 gwei) to the destination via `call`,
    /// triggering its fallback function. Sends a gwei-divisible amount as well as a
    /// non-gwei-divisible amount.
    ///
    /// Total sent == `gweiSent + remainderSent`
    function _sendRandomETH(address destination) internal returns (uint64 gweiSent, uint remainderSent) {
        gweiSent = uint64(_randUint({min: 1, max: 10}));
        remainderSent = _randUint({min: 1, max: 100});
        uint totalSent = (gweiSent * GWEI_TO_WEI) + remainderSent;

        cheats.deal(address(this), address(this).balance + totalSent);
        bool r;
        bytes memory d;
        (r, d) = destination.call{value: totalSent}("");

        return (gweiSent, remainderSent);
    }

    /// @dev Choose a random subset of validators (selects AT LEAST ONE)
    function _choose(uint40[] memory validators) internal returns (uint40[] memory) {
        uint _rand = _randUint({min: 1, max: (2**validators.length) - 1});

        uint40[] memory result = new uint40[](validators.length);
        uint newLen;
        for (uint i = 0; i < validators.length; i++) {
            // if bit set, add validator
            if (_rand >> i & 1 == 1) {
                result[newLen] = validators[i];
                newLen++;
            }
        }

        // Manually update length of result
        assembly {
            mstore(result, newLen)
        }

        return result;
    }

    function _getTokenName(IERC20 token) internal view returns (string memory) {
        if (token == NATIVE_ETH) return "Native ETH";
        return IERC20Metadata(address(token)).name();
    }
    ///
    ///                             COMMON ASSERTIONS
    ///

    function assert_HasNoDelegatableShares(User user, string memory err) internal view {
        (IStrategy[] memory strategies, uint[] memory shares) = delegationManager.getDepositedShares(address(user));

        assertEq(strategies.length, 0, err);
        assertEq(strategies.length, shares.length, "assert_HasNoDelegatableShares: return length mismatch");
    }

    function assert_HasUnderlyingTokenBalances(User user, IStrategy[] memory strategies, uint[] memory expectedBalances, string memory err)
        internal
        view
    {
        for (uint i = 0; i < strategies.length; i++) {
            assert_HasUnderlyingTokenBalance(user, strategies[i], expectedBalances[i], err);
        }
    }

    function assert_HasUnderlyingTokenBalance(User user, IStrategy strategy, uint expectedBalance, string memory err) internal view {
        uint tokenBalance;
        if (strategy == BEACONCHAIN_ETH_STRAT) tokenBalance = address(user).balance;
        else tokenBalance = strategy.underlyingToken().balanceOf(address(user));

        assertApproxEqAbs(expectedBalance, tokenBalance, 1, err);
    }

    function assert_HasNoUnderlyingTokenBalance(User user, IStrategy[] memory strategies, string memory err) internal view {
        assert_HasUnderlyingTokenBalances(user, strategies, new uint[](strategies.length), err);
    }

    function assert_HasExpectedShares(User user, IStrategy[] memory strategies, uint[] memory expectedShares, string memory err)
        internal
        view
    {
        uint[] memory actualShares = _getStakerDepositShares(user, strategies);
        for (uint i = 0; i < strategies.length; i++) {
            assertApproxEqAbs(expectedShares[i], actualShares[i], 1, err);
        }
    }

    /// @dev Check that all the staker's deposit shares have been removed
    function assert_RemovedAll_Staker_DepositShares(User user, IStrategy[] memory strategies, string memory err) internal view {
        uint[] memory depositShares = _getStakerDepositShares(user, strategies);
        for (uint i = 0; i < strategies.length; i++) {
            assertEq(depositShares[i], 0, err);
        }
    }

    /// @dev Check that all the staker's withdrawable shares have been removed
    function assert_RemovedAll_Staker_WithdrawableShares(User staker, IStrategy[] memory strategies, string memory err) internal view {
        uint[] memory curShares = _getStakerWithdrawableShares(staker, strategies);
        // For each strategy, check all shares have been withdrawn
        for (uint i = 0; i < strategies.length; i++) {
            assertEq(0, curShares[i], err);
        }
    }

    function assert_HasOperatorShares(User user, IStrategy[] memory strategies, uint[] memory expectedShares, string memory err)
        internal
        view
    {
        for (uint i = 0; i < strategies.length; i++) {
            uint actualShares = delegationManager.operatorShares(address(user), strategies[i]);
            assertEq(expectedShares[i], actualShares, err);
        }
    }

    /// @dev Asserts that ALL of the `withdrawalRoots` is in `delegationManager.pendingWithdrawals`
    function assert_AllWithdrawalsPending(bytes32[] memory withdrawalRoots, string memory err) internal view {
        for (uint i = 0; i < withdrawalRoots.length; i++) {
            assert_WithdrawalPending(withdrawalRoots[i], err);
        }
    }

    /// @dev Asserts that NONE of the `withdrawalRoots` is in `delegationManager.pendingWithdrawals`
    function assert_NoWithdrawalsPending(bytes32[] memory withdrawalRoots, string memory err) internal view {
        for (uint i = 0; i < withdrawalRoots.length; i++) {
            assert_WithdrawalNotPending(withdrawalRoots[i], err);
        }
    }

    /// @dev Asserts that the hash of each withdrawal corresponds to the provided withdrawal root
    function assert_WithdrawalPending(bytes32 withdrawalRoot, string memory err) internal view {
        assertTrue(delegationManager.pendingWithdrawals(withdrawalRoot), err);
    }

    function assert_WithdrawalNotPending(bytes32 withdrawalRoot, string memory err) internal view {
        assertFalse(delegationManager.pendingWithdrawals(withdrawalRoot), err);
    }

    function assert_ValidWithdrawalHashes(Withdrawal[] memory withdrawals, bytes32[] memory withdrawalRoots, string memory err)
        internal
        view
    {
        for (uint i = 0; i < withdrawals.length; i++) {
            assert_ValidWithdrawalHash(withdrawals[i], withdrawalRoots[i], err);
        }
    }

    function assert_ValidWithdrawalHash(Withdrawal memory withdrawal, bytes32 withdrawalRoot, string memory err) internal view {
        assertEq(withdrawalRoot, delegationManager.calculateWithdrawalRoot(withdrawal), err);
    }

    function assert_StakerStrategyListEmpty(User staker, string memory err) internal view {
        IStrategy[] memory strategies = _getStakerStrategyList(staker);
        assertEq(strategies.length, 0, err);
    }

    function assert_StrategyNotInStakerStrategyList(User staker, IStrategy strategy, string memory err) internal view {
        // BEACONCHAIN_ETH_STRAT is not in the staker's strategy list
        if (strategy == BEACONCHAIN_ETH_STRAT) return;

        IStrategy[] memory strategies = _getStakerStrategyList(staker);
        assertFalse(strategies.contains(strategy), err);
    }

    function assert_StrategiesInStakerStrategyList(User staker, IStrategy[] memory strategies, string memory err) internal view {
        for (uint i = 0; i < strategies.length; i++) {
            assert_StrategyInStakerStrategyList(staker, strategies[i], err);
        }
    }

    function assert_StrategyInStakerStrategyList(User staker, IStrategy strategy, string memory err) internal view {
        // BEACONCHAIN_ETH_STRAT is not in the staker's strategy list
        if (strategy == BEACONCHAIN_ETH_STRAT) return;

        IStrategy[] memory strategies = _getStakerStrategyList(staker);
        assertTrue(strategies.contains(strategy), err);
    }

    function assert_PodBalance_Eq(User staker, uint expectedBalance, string memory err) internal view {
        EigenPod pod = staker.pod();
        assertEq(address(pod).balance, expectedBalance, err);
    }

    function assert_ProofsRemainingEqualsActive(User staker, string memory err) internal view {
        EigenPod pod = staker.pod();
        console.log("proofsRemaining: ", pod.currentCheckpoint().proofsRemaining);
        console.log("activeValidatorCount: ", pod.activeValidatorCount());
        assertEq(pod.currentCheckpoint().proofsRemaining, pod.activeValidatorCount(), err);
    }

    function assert_CheckpointPodBalance(User staker, uint64 expectedPodBalanceGwei, string memory err) internal view {
        EigenPod pod = staker.pod();
        assertEq(pod.currentCheckpoint().podBalanceGwei, expectedPodBalanceGwei, err);
    }

    function assert_MaxEqualsAllocatablePlusEncumbered(User operator, string memory err) internal view {
        Magnitudes[] memory mags = _getMagnitudes(operator, allStrats);

        for (uint i = 0; i < allStrats.length; i++) {
            Magnitudes memory m = mags[i];
            assertEq(m.max, m.encumbered + m.allocatable, err);
        }
    }

    function assert_CurMinSlashableEqualsMinAllocated(
        User operator,
        OperatorSet memory operatorSet,
        IStrategy[] memory strategies,
        string memory err
    ) internal view {
        uint[] memory minSlashableStake = _getMinSlashableStake(operator, operatorSet, strategies);
        uint[] memory minAllocatedStake = _getAllocatedStake(operator, operatorSet, strategies);

        for (uint i = 0; i < strategies.length; i++) {
            assertEq(minSlashableStake[i], minAllocatedStake[i], err);
        }
    }

    function assert_MaxMagsEqualMaxMagsAtCurrentBlock(User operator, IStrategy[] memory strategies, string memory err) internal view {
        uint64[] memory maxMagnitudes = _getMaxMagnitudes(operator, strategies);
        uint64[] memory maxAtCurrentBlock = _getMaxMagnitudes(operator, strategies, uint32(block.number));

        for (uint i = 0; i < strategies.length; i++) {
            assertEq(maxMagnitudes[i], maxAtCurrentBlock[i], err);
        }
    }

    function assert_CurrentMagnitude(User operator, AllocateParams memory params, string memory err) internal view {
        Allocation[] memory allocations = _getAllocations(operator, params.operatorSet, params.strategies);

        for (uint i = 0; i < allocations.length; i++) {
            assertEq(allocations[i].currentMagnitude, params.newMagnitudes[i], err);
        }
    }

    function assert_NoPendingModification(User operator, OperatorSet memory operatorSet, IStrategy[] memory strategies, string memory err)
        internal
        view
    {
        Allocation[] memory allocations = _getAllocations(operator, operatorSet, strategies);

        for (uint i = 0; i < allocations.length; i++) {
            assertEq(0, allocations[i].effectBlock, err);
        }
    }

    function assert_HasPendingIncrease(User operator, AllocateParams memory params, string memory err) internal view {
        uint32 delay = _getExistingAllocationDelay(operator);
        Allocation[] memory allocations = _getAllocations(operator, params.operatorSet, params.strategies);

        for (uint i = 0; i < allocations.length; i++) {
            assertEq(allocations[i].effectBlock, uint32(block.number) + delay, err);
            assertTrue(allocations[i].currentMagnitude != params.newMagnitudes[i], err);
            assertGt(allocations[i].pendingDiff, 0, err);
        }
    }

    function assert_HasPendingDecrease(User operator, AllocateParams memory params, string memory err) internal view {
        uint32 deallocationDelay = allocationManager.DEALLOCATION_DELAY();
        Allocation[] memory allocations = _getAllocations(operator, params.operatorSet, params.strategies);

        for (uint i = 0; i < allocations.length; i++) {
            assertEq(allocations[i].effectBlock, uint32(block.number) + deallocationDelay + 1, err);
            assertTrue(allocations[i].currentMagnitude != params.newMagnitudes[i], err);
            assertLt(allocations[i].pendingDiff, 0, err);
        }
    }

    function assert_IsRegistered(User operator, OperatorSet memory operatorSet, string memory err) internal view {
        assertTrue(allocationManager.isMemberOfOperatorSet(address(operator), operatorSet), err);
    }

    function assert_IsSlashable(User operator, OperatorSet memory operatorSet, string memory err) internal view {
        assertTrue(allocationManager.isOperatorSlashable(address(operator), operatorSet), err);
    }

    function assert_NotSlashable(User operator, OperatorSet memory operatorSet, string memory err) internal view {
        assertFalse(allocationManager.isOperatorSlashable(address(operator), operatorSet), err);
    }

    function assert_IsAllocatedToSet(User operator, OperatorSet memory operatorSet, string memory err) internal view {
        assertTrue(allocationManager.getAllocatedSets(address(operator)).contains(operatorSet), err);
    }

    function assert_IsNotAllocated(User operator, OperatorSet memory operatorSet, string memory err) internal view {
        assertEq(allocationManager.getAllocatedStrategies(address(operator), operatorSet).length, 0, err);
    }

    function assert_IsAllocatedToSetStrats(User operator, OperatorSet memory operatorSet, IStrategy[] memory strategies, string memory err)
        internal
        view
    {
        IStrategy[] memory allocatedStrategies = allocationManager.getAllocatedStrategies(address(operator), operatorSet);

        for (uint i = 0; i < strategies.length; i++) {
            assertTrue(allocatedStrategies.contains(strategies[i]), err);
        }
    }

    function assert_HasAllocatedStake(User operator, AllocateParams memory params, string memory err) internal view {
        OperatorSet memory operatorSet = params.operatorSet;
        IStrategy[] memory strategies = params.strategies;
        uint64[] memory curMagnitudes = params.newMagnitudes;

        uint64[] memory maxMagnitudes = _getMaxMagnitudes(operator, params.strategies);
        uint[] memory operatorShares = _getOperatorShares(operator, params.strategies);
        uint[] memory allocatedStake = _getAllocatedStake(operator, operatorSet, strategies);

        for (uint i = 0; i < strategies.length; i++) {
            uint expectedAllocated;
            if (maxMagnitudes[i] == 0) {
                expectedAllocated = 0;
            } else {
                uint slashableProportion = uint(curMagnitudes[i]).divWad(maxMagnitudes[i]);
                expectedAllocated = operatorShares[i].mulWad(slashableProportion);
            }

            assertEq(expectedAllocated, allocatedStake[i], err);
        }
    }

    function assert_HasSlashableStake(User operator, AllocateParams memory params, string memory err) internal view {
        OperatorSet memory operatorSet = params.operatorSet;
        IStrategy[] memory strategies = params.strategies;
        uint64[] memory curMagnitudes = params.newMagnitudes;

        uint64[] memory maxMagnitudes = _getMaxMagnitudes(operator, params.strategies);
        uint[] memory operatorShares = _getOperatorShares(operator, params.strategies);
        uint[] memory slashableStake = _getMinSlashableStake(operator, operatorSet, strategies);

        for (uint i = 0; i < strategies.length; i++) {
            uint expectedSlashable;
            if (maxMagnitudes[i] == 0) {
                expectedSlashable = 0;
            } else {
                uint slashableProportion = uint(curMagnitudes[i]).divWad(maxMagnitudes[i]);
                expectedSlashable = operatorShares[i].mulWad(slashableProportion);
            }

            assertEq(expectedSlashable, slashableStake[i], err);
        }
    }

    function assert_NoSlashableStake(User operator, OperatorSet memory operatorSet, string memory err) internal view {
        IStrategy[] memory strategies = allocationManager.getStrategiesInOperatorSet(operatorSet);
        uint[] memory slashableStake = _getMinSlashableStake(operator, operatorSet, strategies);

        for (uint i = 0; i < slashableStake.length; i++) {
            assertEq(slashableStake[i], 0, err);
        }
    }

    function assert_DSF_WAD(User staker, IStrategy[] memory strategies, string memory err) internal view {
        uint[] memory depositScalingFactors = _getDepositScalingFactors(staker, strategies);
        for (uint i = 0; i < strategies.length; i++) {
            assertEq(depositScalingFactors[i], WAD, err);
        }
    }

    function assert_Zero_BCSF(User staker, string memory err) internal view {
        uint64 curBCSF = _getBeaconChainSlashingFactor(staker);
        assertEq(curBCSF, 0, err);
    }

    function assert_BCSF_WAD(User staker, string memory err) internal view {
        uint64 curBCSF = _getBeaconChainSlashingFactor(staker);
        assertEq(curBCSF, WAD, err);
    }

    function assert_ActiveValidatorCount(User staker, uint expectedCount, string memory err) internal view {
        uint curActiveValidatorCount = _getActiveValidatorCount(staker);
        assertEq(curActiveValidatorCount, expectedCount, err);
    }

    function assert_withdrawableSharesDecreasedByAtLeast(
        User staker,
        IStrategy[] memory strategies,
        uint[] memory originalShares,
        uint[] memory expectedDecreases,
        string memory err
    ) internal view {
        for (uint i = 0; i < strategies.length; i++) {
            assert_withdrawableSharesDecreasedByAtLeast(staker, strategies[i], originalShares[i], expectedDecreases[i], err);
        }
    }

    function assert_withdrawableSharesDecreasedByAtLeast(
        User staker,
        IStrategy strategy,
        uint originalShares,
        uint expectedDecrease,
        string memory err
    ) internal view {
        uint currentShares = _getWithdrawableShares(staker, strategy);
        assertLt(currentShares, originalShares - expectedDecrease, err);
    }

    function assert_DepositShares_GTE_WithdrawableShares(User staker, IStrategy[] memory strategies, string memory err) internal view {
        uint[] memory depositShares = _getStakerDepositShares(staker, strategies);
        uint[] memory withdrawableShares = _getWithdrawableShares(staker, strategies);
        for (uint i = 0; i < strategies.length; i++) {
            assertGe(depositShares[i], withdrawableShares[i], err);
        }
    }

    function assert_Zero_WithdrawableShares(User staker, IStrategy strategy, string memory err) internal view {
        assertEq(_getWithdrawableShares(staker, strategy), 0, err);
    }

    ///
    ///                             SNAPSHOT ASSERTIONS
    ///                    TIME TRAVELERS ONLY BEYOND THIS POINT
    ///

    ///
    ///                      SNAPSHOT ASSERTIONS: ALLOCATIONS
    ///
    function assert_Snap_Became_Registered(User operator, OperatorSet memory operatorSet, string memory err) internal {
        bool curIsMemberOfSet = _getIsMemberOfSet(operator, operatorSet);
        bool prevIsMemberOfSet = _getPrevIsMemberOfSet(operator, operatorSet);

        assertFalse(prevIsMemberOfSet, err);
        assertTrue(curIsMemberOfSet, err);
    }

    function assert_Snap_Became_Deregistered(User operator, OperatorSet memory operatorSet, string memory err) internal {
        bool curIsMemberOfSet = _getIsMemberOfSet(operator, operatorSet);
        bool prevIsMemberOfSet = _getPrevIsMemberOfSet(operator, operatorSet);

        assertTrue(prevIsMemberOfSet, err);
        assertFalse(curIsMemberOfSet, err);
    }

    function assert_Snap_Unchanged_Registration(User operator, OperatorSet memory operatorSet, string memory err) internal {
        bool curIsMemberOfSet = _getIsMemberOfSet(operator, operatorSet);
        bool prevIsMemberOfSet = _getPrevIsMemberOfSet(operator, operatorSet);

        assertEq(prevIsMemberOfSet, curIsMemberOfSet, err);
    }

    function assert_Snap_Became_Slashable(User operator, OperatorSet memory operatorSet, string memory err) internal {
        bool curIsSlashable = _getIsSlashable(operator, operatorSet);
        bool prevIsSlashable = _getPrevIsSlashable(operator, operatorSet);

        assertFalse(prevIsSlashable, err);
        assertTrue(curIsSlashable, err);
    }

    function assert_Snap_Remains_Slashable(User operator, OperatorSet memory operatorSet, string memory err) internal {
        bool curIsSlashable = _getIsSlashable(operator, operatorSet);
        bool prevIsSlashable = _getPrevIsSlashable(operator, operatorSet);

        assertTrue(prevIsSlashable, err);
        assertTrue(curIsSlashable, err);
    }

    function assert_Snap_Unchanged_Slashability(User operator, OperatorSet memory operatorSet, string memory err) internal {
        bool curIsSlashable = _getIsSlashable(operator, operatorSet);
        bool prevIsSlashable = _getPrevIsSlashable(operator, operatorSet);

        assertEq(prevIsSlashable, curIsSlashable, err);
    }

    function assert_Snap_Unchanged_AllocatedStrats(User operator, OperatorSet memory operatorSet, string memory err) internal {
        IStrategy[] memory curAllocatedStrats = _getAllocatedStrats(operator, operatorSet);
        IStrategy[] memory prevAllocatedStrats = _getPrevAllocatedStrats(operator, operatorSet);

        assertEq(curAllocatedStrats.length, prevAllocatedStrats.length, err);

        for (uint i = 0; i < curAllocatedStrats.length; i++) {
            assertEq(address(curAllocatedStrats[i]), address(prevAllocatedStrats[i]), err);
        }
    }

    function assert_Snap_Removed_AllocatedStrats(
        User operator,
        OperatorSet memory operatorSet,
        IStrategy[] memory removedStrats,
        string memory err
    ) internal {
        IStrategy[] memory curAllocatedStrats = _getAllocatedStrats(operator, operatorSet);
        IStrategy[] memory prevAllocatedStrats = _getPrevAllocatedStrats(operator, operatorSet);

        assertEq(curAllocatedStrats.length + removedStrats.length, prevAllocatedStrats.length, err);

        for (uint i = 0; i < removedStrats.length; i++) {
            assertFalse(curAllocatedStrats.contains(removedStrats[i]), err);
        }
    }

    function assert_Snap_Unchanged_StrategyAllocations(
        User operator,
        OperatorSet memory operatorSet,
        IStrategy[] memory strategies,
        string memory err
    ) internal {
        Allocation[] memory curAllocations = _getAllocations(operator, operatorSet, strategies);
        Allocation[] memory prevAllocations = _getPrevAllocations(operator, operatorSet, strategies);

        for (uint i = 0; i < strategies.length; i++) {
            Allocation memory curAllocation = curAllocations[i];
            Allocation memory prevAllocation = prevAllocations[i];

            assertEq(curAllocation.currentMagnitude, prevAllocation.currentMagnitude, err);
            assertEq(curAllocation.pendingDiff, prevAllocation.pendingDiff, err);
            assertEq(curAllocation.effectBlock, prevAllocation.effectBlock, err);
        }
    }

    function assert_Snap_Added_AllocatedSet(User operator, OperatorSet memory operatorSet, string memory err) internal {
        OperatorSet[] memory curAllocatedSets = _getAllocatedSets(operator);
        OperatorSet[] memory prevAllocatedSets = _getPrevAllocatedSets(operator);

        assertEq(curAllocatedSets.length, prevAllocatedSets.length + 1, err);
        assertFalse(prevAllocatedSets.contains(operatorSet), err);
        assertTrue(curAllocatedSets.contains(operatorSet), err);
    }

    function assert_Snap_Unchanged_AllocatedSets(User operator, string memory err) internal {
        OperatorSet[] memory curAllocatedSets = _getAllocatedSets(operator);
        OperatorSet[] memory prevAllocatedSets = _getPrevAllocatedSets(operator);

        assertEq(curAllocatedSets.length, prevAllocatedSets.length, err);
    }

    function assert_Snap_Removed_AllocatedSet(User operator, OperatorSet memory operatorSet, string memory err) internal {
        OperatorSet[] memory curAllocatedSets = _getAllocatedSets(operator);
        OperatorSet[] memory prevAllocatedSets = _getPrevAllocatedSets(operator);

        assertEq(curAllocatedSets.length + 1, prevAllocatedSets.length, err);
        assertTrue(prevAllocatedSets.contains(operatorSet), err);
        assertFalse(curAllocatedSets.contains(operatorSet), err);
    }

    function assert_Snap_Added_RegisteredSet(User operator, OperatorSet memory operatorSet, string memory err) internal {
        OperatorSet[] memory curRegisteredSets = _getRegisteredSets(operator);
        OperatorSet[] memory prevRegisteredSets = _getPrevRegisteredSets(operator);

        assertEq(curRegisteredSets.length, prevRegisteredSets.length + 1, err);
        assertFalse(prevRegisteredSets.contains(operatorSet), err);
        assertTrue(curRegisteredSets.contains(operatorSet), err);
    }

    function assert_Snap_Removed_RegisteredSet(User operator, OperatorSet memory operatorSet, string memory err) internal {
        OperatorSet[] memory curRegisteredSets = _getRegisteredSets(operator);
        OperatorSet[] memory prevRegisteredSets = _getPrevRegisteredSets(operator);

        assertEq(curRegisteredSets.length + 1, prevRegisteredSets.length, err);
        assertTrue(prevRegisteredSets.contains(operatorSet), err);
        assertFalse(curRegisteredSets.contains(operatorSet), err);
    }

    function assert_Snap_Unchanged_RegisteredSet(User operator, string memory err) internal {
        OperatorSet[] memory curRegisteredSets = _getRegisteredSets(operator);
        OperatorSet[] memory prevRegisteredSets = _getPrevRegisteredSets(operator);

        assertEq(curRegisteredSets.length, prevRegisteredSets.length, err);
        for (uint i = 0; i < curRegisteredSets.length; i++) {
            assertEq(curRegisteredSets[i].avs, prevRegisteredSets[i].avs, err);
            assertEq(curRegisteredSets[i].id, prevRegisteredSets[i].id, err);
        }
    }

    function assert_Snap_Added_MemberOfSet(User operator, OperatorSet memory operatorSet, string memory err) internal {
        address[] memory curOperators = _getMembers(operatorSet);
        address[] memory prevOperators = _getPrevMembers(operatorSet);

        assertEq(curOperators.length, prevOperators.length + 1, err);
        assertFalse(prevOperators.contains(address(operator)), err);
        assertTrue(curOperators.contains(address(operator)), err);
    }

    function assert_Snap_Removed_MemberOfSet(User operator, OperatorSet memory operatorSet, string memory err) internal {
        address[] memory curOperators = _getMembers(operatorSet);
        address[] memory prevOperators = _getPrevMembers(operatorSet);

        assertEq(curOperators.length + 1, prevOperators.length, err);
        assertTrue(prevOperators.contains(address(operator)), err);
        assertFalse(curOperators.contains(address(operator)), err);
    }

    function assert_Snap_Unchanged_MemberOfSet(OperatorSet memory operatorSet, string memory err) internal {
        address[] memory curOperators = _getMembers(operatorSet);
        address[] memory prevOperators = _getPrevMembers(operatorSet);

        assertEq(curOperators.length, prevOperators.length, err);
        for (uint i = 0; i < curOperators.length; i++) {
            assertEq(curOperators[i], prevOperators[i], err);
        }
    }

    function assert_Snap_StakeBecameSlashable(
        User operator,
        OperatorSet memory operatorSet,
        IStrategy[] memory strategies,
        string memory err
    ) internal {
        uint[] memory curSlashableStake = _getMinSlashableStake(operator, operatorSet, strategies);
        uint[] memory prevSlashableStake = _getPrevMinSlashableStake(operator, operatorSet, strategies);

        for (uint i = 0; i < strategies.length; i++) {
            assertTrue(prevSlashableStake[i] < curSlashableStake[i], err);
        }
    }

    function assert_Snap_StakeBecomeUnslashable(
        User operator,
        OperatorSet memory operatorSet,
        IStrategy[] memory strategies,
        string memory err
    ) internal {
        uint[] memory curSlashableStake = _getMinSlashableStake(address(operator), operatorSet, strategies);
        uint[] memory prevSlashableStake = _getPrevMinSlashableStake(address(operator), operatorSet, strategies);

        for (uint i = 0; i < strategies.length; i++) {
            assertTrue(prevSlashableStake[i] > curSlashableStake[i], err);
            assertTrue(prevSlashableStake[i] > curSlashableStake[i], err);
        }
    }

    function assert_Snap_Added_SlashableStake(
        User operator,
        OperatorSet memory operatorSet,
        IStrategy[] memory strategies,
        uint[] memory slashableShares,
        string memory err
    ) internal {
        uint[] memory curSlashableStake = _getMinSlashableStake(operator, operatorSet, strategies);
        uint[] memory prevSlashableStake = _getPrevMinSlashableStake(operator, operatorSet, strategies);

        for (uint i = 0; i < strategies.length; i++) {
            assertEq(curSlashableStake[i], prevSlashableStake[i] + slashableShares[i], err);
        }
    }

    function assert_Snap_Unchanged_SlashableStake(
        User operator,
        OperatorSet memory operatorSet,
        IStrategy[] memory strategies,
        string memory err
    ) internal {
        uint[] memory curSlashableStake = _getMinSlashableStake(operator, operatorSet, strategies);
        uint[] memory prevSlashableStake = _getPrevMinSlashableStake(operator, operatorSet, strategies);

        for (uint i = 0; i < strategies.length; i++) {
            assertEq(curSlashableStake[i], prevSlashableStake[i], err);
        }
    }

    function assert_Snap_Removed_SlashableStake(
        User operator,
        OperatorSet memory operatorSet,
        IStrategy[] memory strategies,
        uint[] memory removedSlashableShares,
        string memory err
    ) internal {
        uint[] memory curSlashableStake = _getMinSlashableStake(operator, operatorSet, strategies);
        uint[] memory prevSlashableStake = _getPrevMinSlashableStake(operator, operatorSet, strategies);

        for (uint i = 0; i < strategies.length; i++) {
            assertEq(curSlashableStake[i] + removedSlashableShares[i], prevSlashableStake[i], err);
        }
    }

    function assert_Snap_Slashed_SlashableStake(
        User operator,
        OperatorSet memory operatorSet,
        SlashingParams memory params,
        string memory err
    ) internal {
        uint[] memory curSlashableStake = _getMinSlashableStake(operator, operatorSet, params.strategies);
        uint[] memory prevSlashableStake = _getPrevMinSlashableStake(operator, operatorSet, params.strategies);

        Magnitudes[] memory curMagnitudes = _getMagnitudes(operator, params.strategies);
        Magnitudes[] memory prevMagnitudes = _getPrevMagnitudes(operator, params.strategies);

        for (uint i = 0; i < params.strategies.length; i++) {
            // Slashing doesn't occur if the operator has no slashable magnitude
            // This prevents a div by 0 when calculating expected slashed
            uint expectedSlashed = prevMagnitudes[i].max == 0
                ? 0
                : SlashingLib.calcSlashedAmount({
                    operatorShares: prevSlashableStake[i],
                    prevMaxMagnitude: prevMagnitudes[i].max,
                    newMaxMagnitude: curMagnitudes[i].max
                });

            assertEq(curSlashableStake[i], prevSlashableStake[i] - expectedSlashed, err);
        }
    }

    //@dev requires slashparams strategies to be same as withdrawal strategies
    // meant to be used in check_base_slashing_state
    function assert_Snap_Decreased_SlashableSharesInQueue(
        User operator,
        SlashingParams memory slashParams,
        Withdrawal[] memory withdrawals,
        string memory err
    ) internal {
        IStrategy[] memory strategies = slashParams.strategies;
        uint[] memory curSlashableSharesInQueue = _getSlashableSharesInQueue(operator, strategies);
        uint[] memory prevSlashableSharesInQueue = _getPrevSlashableSharesInQueue(operator, strategies);

        uint[] memory totalScaledShares = new uint[](strategies.length);
        for (uint i = 0; i < withdrawals.length; i++) {
            for (uint j = 0; j < withdrawals[i].strategies.length; j++) {
                totalScaledShares[j] = totalScaledShares[j] + withdrawals[i].scaledShares[j];
            }
        }

        for (uint i = 0; i < strategies.length; i++) {
            assertEq(
                curSlashableSharesInQueue[i], prevSlashableSharesInQueue[i] - totalScaledShares[i].mulWad(slashParams.wadsToSlash[i]), err
            );
        }
    }

    function assert_Snap_Increased_SlashableSharesInQueue(User operator, Withdrawal[] memory withdrawals, string memory err) internal {
        uint[] memory curSlashableSharesInQueue;
        uint[] memory prevSlashableSharesInQueue;
        uint64[] memory maxMagnitudes;
        for (uint i = 0; i < withdrawals.length; i++) {
            curSlashableSharesInQueue = _getSlashableSharesInQueue(operator, withdrawals[i].strategies);
            prevSlashableSharesInQueue = _getPrevSlashableSharesInQueue(operator, withdrawals[i].strategies);
            maxMagnitudes = _getMaxMagnitudes(operator, withdrawals[i].strategies);

            for (uint j = 0; j < withdrawals[i].strategies.length; j++) {
                assertEq(
                    curSlashableSharesInQueue[j],
                    prevSlashableSharesInQueue[j] + withdrawals[i].scaledShares[j].mulWad(maxMagnitudes[j]),
                    err
                );
            }
        }
    }

    function assert_Snap_StakeBecameAllocated(
        User operator,
        OperatorSet memory operatorSet,
        IStrategy[] memory strategies,
        string memory err
    ) internal {
        uint[] memory curMinAllocatedStake = _getAllocatedStake(operator, operatorSet, strategies);
        uint[] memory prevMinAllocatedStake = _getPrevAllocatedStake(operator, operatorSet, strategies);

        for (uint i = 0; i < strategies.length; i++) {
            assertGt(curMinAllocatedStake[i], prevMinAllocatedStake[i], err);
        }
    }

    function assert_Snap_StakeBecameDeallocated(
        User operator,
        OperatorSet memory operatorSet,
        IStrategy[] memory strategies,
        string memory err
    ) internal {
        uint[] memory curMinAllocatedStake = _getAllocatedStake(operator, operatorSet, strategies);
        uint[] memory prevMinAllocatedStake = _getPrevAllocatedStake(operator, operatorSet, strategies);

        for (uint i = 0; i < strategies.length; i++) {
            assertLt(curMinAllocatedStake[i], prevMinAllocatedStake[i], err);
        }
    }

    function assert_Snap_Unchanged_AllocatedStake(
        User operator,
        OperatorSet memory operatorSet,
        IStrategy[] memory strategies,
        string memory err
    ) internal {
        uint[] memory curAllocatedStake = _getAllocatedStake(operator, operatorSet, strategies);
        uint[] memory prevAllocatedStake = _getPrevAllocatedStake(operator, operatorSet, strategies);

        for (uint i = 0; i < curAllocatedStake.length; i++) {
            assertEq(curAllocatedStake[i], prevAllocatedStake[i], err);
        }
    }

    function assert_Snap_Slashed_AllocatedStake(
        User operator,
        OperatorSet memory operatorSet,
        SlashingParams memory params,
        string memory err
    ) internal {
        uint[] memory curAllocatedStake = _getAllocatedStake(operator, operatorSet, params.strategies);
        uint[] memory prevAllocatedStake = _getPrevAllocatedStake(operator, operatorSet, params.strategies);

        Magnitudes[] memory curMagnitudes = _getMagnitudes(operator, params.strategies);
        Magnitudes[] memory prevMagnitudes = _getPrevMagnitudes(operator, params.strategies);

        for (uint i = 0; i < curAllocatedStake.length; i++) {
            // Slashing doesn't occur if the operator has no slashable magnitude
            // This prevents a div by 0 when calculating expected slashed
            uint expectedSlashed = prevMagnitudes[i].max == 0
                ? 0
                : SlashingLib.calcSlashedAmount({
                    operatorShares: prevAllocatedStake[i],
                    prevMaxMagnitude: prevMagnitudes[i].max,
                    newMaxMagnitude: curMagnitudes[i].max
                });

            assertEq(curAllocatedStake[i], prevAllocatedStake[i] - expectedSlashed, err);
        }
    }

    function assert_Snap_Added_EncumberedMagnitude(
        User operator,
        IStrategy[] memory strategies,
        uint64[] memory magnitudeAdded,
        string memory err
    ) internal {
        Magnitudes[] memory curMagnitudes = _getMagnitudes(operator, strategies);
        Magnitudes[] memory prevMagnitudes = _getPrevMagnitudes(operator, strategies);

        for (uint i = 0; i < strategies.length; i++) {
            assertEq(curMagnitudes[i].encumbered, prevMagnitudes[i].encumbered + magnitudeAdded[i], err);
        }
    }

    function assert_Snap_Unchanged_EncumberedMagnitude(User operator, IStrategy[] memory strategies, string memory err) internal {
        Magnitudes[] memory curMagnitudes = _getMagnitudes(operator, strategies);
        Magnitudes[] memory prevMagnitudes = _getPrevMagnitudes(operator, strategies);

        for (uint i = 0; i < strategies.length; i++) {
            assertEq(curMagnitudes[i].encumbered, prevMagnitudes[i].encumbered, err);
        }
    }

    function assert_Snap_Removed_EncumberedMagnitude(
        User operator,
        IStrategy[] memory strategies,
        uint64[] memory magnitudeRemoved,
        string memory err
    ) internal {
        Magnitudes[] memory curMagnitudes = _getMagnitudes(operator, strategies);
        Magnitudes[] memory prevMagnitudes = _getPrevMagnitudes(operator, strategies);

        for (uint i = 0; i < strategies.length; i++) {
            assertEq(curMagnitudes[i].encumbered + magnitudeRemoved[i], prevMagnitudes[i].encumbered, err);
        }
    }

    function assert_Snap_Slashed_EncumberedMagnitude(User operator, SlashingParams memory params, string memory err) internal {
        Magnitudes[] memory curMagnitudes = _getMagnitudes(operator, params.strategies);
        Magnitudes[] memory prevMagnitudes = _getPrevMagnitudes(operator, params.strategies);

        for (uint i = 0; i < params.strategies.length; i++) {
            uint expectedSlashed = prevMagnitudes[i].encumbered.mulWadRoundUp(params.wadsToSlash[i]);
            assertEq(curMagnitudes[i].encumbered, prevMagnitudes[i].encumbered - expectedSlashed, err);
        }
    }

    function assert_Snap_Added_AllocatableMagnitude(
        User operator,
        IStrategy[] memory strategies,
        uint64[] memory magnitudeFreed,
        string memory err
    ) internal {
        Magnitudes[] memory curMagnitudes = _getMagnitudes(operator, strategies);
        Magnitudes[] memory prevMagnitudes = _getPrevMagnitudes(operator, strategies);

        for (uint i = 0; i < strategies.length; i++) {
            assertEq(curMagnitudes[i].allocatable, prevMagnitudes[i].allocatable + magnitudeFreed[i], err);
        }
    }

    function assert_Snap_Unchanged_AllocatableMagnitude(User operator, IStrategy[] memory strategies, string memory err) internal {
        Magnitudes[] memory curMagnitudes = _getMagnitudes(operator, strategies);
        Magnitudes[] memory prevMagnitudes = _getPrevMagnitudes(operator, strategies);

        for (uint i = 0; i < strategies.length; i++) {
            assertEq(curMagnitudes[i].allocatable, prevMagnitudes[i].allocatable, err);
        }
    }

    function assert_Snap_Removed_AllocatableMagnitude(
        User operator,
        IStrategy[] memory strategies,
        uint64[] memory magnitudeRemoved,
        string memory err
    ) internal {
        Magnitudes[] memory curMagnitudes = _getMagnitudes(operator, strategies);
        Magnitudes[] memory prevMagnitudes = _getPrevMagnitudes(operator, strategies);

        for (uint i = 0; i < strategies.length; i++) {
            assertEq(curMagnitudes[i].allocatable, prevMagnitudes[i].allocatable - magnitudeRemoved[i], err);
        }
    }

    function assert_Snap_Allocated_Magnitude(User operator, IStrategy[] memory strategies, string memory err) internal {
        Magnitudes[] memory curMagnitudes = _getMagnitudes(operator, strategies);
        Magnitudes[] memory prevMagnitudes = _getPrevMagnitudes(operator, strategies);

        /// Check:
        /// allocatable increased
        /// encumbered decreased
        for (uint i = 0; i < strategies.length; i++) {
            assertLt(curMagnitudes[i].allocatable, prevMagnitudes[i].allocatable, err);
            assertGt(curMagnitudes[i].encumbered, prevMagnitudes[i].encumbered, err);
        }
    }

    function assert_Snap_Deallocated_Magnitude(User operator, IStrategy[] memory strategies, string memory err) internal {
        Magnitudes[] memory curMagnitudes = _getMagnitudes(operator, strategies);
        Magnitudes[] memory prevMagnitudes = _getPrevMagnitudes(operator, strategies);

        /// Check:
        /// allocatable increased
        /// encumbered decreased
        for (uint i = 0; i < strategies.length; i++) {
            assertGt(curMagnitudes[i].allocatable, prevMagnitudes[i].allocatable, err);
            assertLt(curMagnitudes[i].encumbered, prevMagnitudes[i].encumbered, err);
        }
    }

    function assert_Snap_Set_CurrentMagnitude(User operator, AllocateParams memory params, string memory err) internal {
        Allocation[] memory curAllocations = _getAllocations(operator, params.operatorSet, params.strategies);
        Allocation[] memory prevAllocations = _getPrevAllocations(operator, params.operatorSet, params.strategies);

        /// Prev allocation.currentMagnitude should NOT equal newly-set magnitude
        /// Cur allocation.currentMagnitude SHOULD
        for (uint i = 0; i < params.strategies.length; i++) {
            assertTrue(prevAllocations[i].currentMagnitude != params.newMagnitudes[i], err);
            assertEq(curAllocations[i].currentMagnitude, params.newMagnitudes[i], err);
        }
    }

    function assert_Snap_Slashed_Allocation(User operator, OperatorSet memory operatorSet, SlashingParams memory params, string memory err)
        internal
    {
        Allocation[] memory curAllocations = _getAllocations(operator, operatorSet, params.strategies);
        Allocation[] memory prevAllocations = _getPrevAllocations(operator, operatorSet, params.strategies);

        for (uint i = 0; i < params.strategies.length; i++) {
            uint expectedSlashed = prevAllocations[i].currentMagnitude.mulWadRoundUp(params.wadsToSlash[i]);
            assertEq(curAllocations[i].currentMagnitude, prevAllocations[i].currentMagnitude - expectedSlashed, err);
        }
    }

    function assert_Snap_Unchanged_MaxMagnitude(User operator, IStrategy[] memory strategies, string memory err) internal {
        Magnitudes[] memory curMagnitudes = _getMagnitudes(operator, strategies);
        Magnitudes[] memory prevMagnitudes = _getPrevMagnitudes(operator, strategies);

        for (uint i = 0; i < strategies.length; i++) {
            assertEq(curMagnitudes[i].max, prevMagnitudes[i].max, err);
        }
    }

    function assert_Snap_Slashed_MaxMagnitude(
        User operator,
        OperatorSet memory operatorSet,
        SlashingParams memory params,
        string memory err
    ) internal {
        Allocation[] memory prevAllocations = _getPrevAllocations(operator, operatorSet, params.strategies);

        Magnitudes[] memory curMagnitudes = _getMagnitudes(operator, params.strategies);
        Magnitudes[] memory prevMagnitudes = _getPrevMagnitudes(operator, params.strategies);

        for (uint i = 0; i < params.strategies.length; i++) {
            uint expectedSlashed = prevAllocations[i].currentMagnitude.mulWadRoundUp(params.wadsToSlash[i]);
            assertEq(curMagnitudes[i].max, prevMagnitudes[i].max - expectedSlashed, err);
        }
    }

    function assert_Snap_Allocations_Slashed(
        SlashingParams memory slashingParams,
        OperatorSet memory operatorSet,
        bool completed,
        string memory err
    ) internal {
        User op = User(payable(slashingParams.operator));

        Allocation[] memory curAllocs = _getAllocations(op, operatorSet, slashingParams.strategies);
        Allocation[] memory prevAllocs = _getPrevAllocations(op, operatorSet, slashingParams.strategies);
        Magnitudes[] memory curMagnitudes = _getMagnitudes(op, slashingParams.strategies);
        Magnitudes[] memory prevMagnitudes = _getPrevMagnitudes(op, slashingParams.strategies);

        uint32 delay = _getExistingAllocationDelay(User(payable(slashingParams.operator)));

        for (uint i = 0; i < slashingParams.strategies.length; i++) {
            Allocation memory curAlloc = curAllocs[i];
            Allocation memory prevAlloc = prevAllocs[i];

            uint64 slashedMagnitude = uint64(uint(prevAlloc.currentMagnitude).mulWadRoundUp(slashingParams.wadsToSlash[i]));

            // Check Allocations
            assertEq(curAlloc.currentMagnitude, prevAlloc.currentMagnitude - slashedMagnitude, string.concat(err, " (currentMagnitude)"));

            if (completed) {
                assertEq(curAlloc.pendingDiff, 0, string.concat(err, " (pendingDiff)"));
                assertEq(curAlloc.effectBlock, 0, string.concat(err, " (effectBlock)"));
            } else {
                assertEq(
                    curAlloc.currentMagnitude, prevAlloc.currentMagnitude - slashedMagnitude, string.concat(err, " (currentMagnitude)")
                );

                // If (isDeallocation) ...
                if (prevAlloc.pendingDiff < 0) {
                    uint64 slashedPending = uint64(uint(uint128(-prevAlloc.pendingDiff)).mulWadRoundUp(slashingParams.wadsToSlash[i]));

                    assertEq(
                        curAlloc.pendingDiff, prevAlloc.pendingDiff + int128(uint128(slashedPending)), string.concat(err, " (pendingDiff)")
                    );

                    delay = DEALLOCATION_DELAY + 1;
                }

                assertEq(curAlloc.effectBlock, block.number + delay, string.concat(err, " (effectBlock)"));
            }

            // Check Magnitudes
            Magnitudes memory curMagnitude = curMagnitudes[i];
            Magnitudes memory prevMagnitude = prevMagnitudes[i];

            assertEq(curMagnitude.encumbered, prevMagnitude.encumbered - slashedMagnitude, string.concat(err, " (encumbered magnitude)"));

            assertEq(curMagnitude.allocatable, prevMagnitude.allocatable, string.concat(err, " (allocatable magnitude)"));

            assertEq(curMagnitude.max, prevMagnitude.max - slashedMagnitude, string.concat(err, " (max magnitude)"));
        }
    }

    function assert_Snap_StakerWithdrawableShares_AfterSlash(
        User staker,
        AllocateParams memory allocateParams,
        SlashingParams memory slashingParams,
        string memory err
    ) internal {
        uint[] memory curShares = _getWithdrawableShares(staker, allocateParams.strategies);
        uint[] memory prevShares = _getPrevWithdrawableShares(staker, allocateParams.strategies);

        for (uint i = 0; i < allocateParams.strategies.length; i++) {
            IStrategy strat = allocateParams.strategies[i];

            uint slashedShares = 0;

            if (slashingParams.strategies.contains(strat)) {
                uint wadToSlash = slashingParams.wadsToSlash[slashingParams.strategies.indexOf(strat)];
                slashedShares = prevShares[i].mulWadRoundUp(allocateParams.newMagnitudes[i].mulWadRoundUp(wadToSlash));
            }

            assertApproxEqAbs(prevShares[i] - slashedShares, curShares[i], 1, err);
        }
    }

    function assert_Snap_OperatorSetRegistered(OperatorSet memory operatorSet, string memory err) internal {
        assertTrue(_getPrevOperatorSetRegistered(operatorSet), err);
        assertTrue(_getOperatorSetRegistered(operatorSet), err);
    }

    ///
    ///                 SNAPSHOT ASSERTIONS: BEACON CHAIN AND AVS SLASHING
    ///

    /// @dev Same as `assert_Snap_StakerWithdrawableShares_AfterSlash`
    /// @dev but when a BC slash occurs before an AVS slash
    /// @dev There is additional rounding error when a BC and AVS slash occur together
    function assert_Snap_StakerWithdrawableShares_AfterBCSlash_AVSSlash(
        User staker,
        AllocateParams memory allocateParams,
        SlashingParams memory slashingParams,
        string memory err
    ) internal {
        require(allocateParams.strategies.length == 1 && slashingParams.strategies.length == 1, "only beacon strategy supported");
        require(allocateParams.strategies[0] == BEACONCHAIN_ETH_STRAT, "only beacon strategy supported");
        require(slashingParams.strategies[0] == BEACONCHAIN_ETH_STRAT, "only beacon strategy supported");

        uint curShares = _getWithdrawableShares(staker, allocateParams.strategies)[0];
        uint prevShares = _getPrevWithdrawableShares(staker, allocateParams.strategies)[0];

        uint slashedShares = 0;

        uint wadToSlash = slashingParams.wadsToSlash[0];
        slashedShares = prevShares.mulWadRoundUp(allocateParams.newMagnitudes[0].mulWadRoundUp(wadToSlash));

        assertApproxEqAbs(prevShares - slashedShares, curShares, 1e2, err);
    }

    /// @dev Validates behavior of "restaking", i.e. that the funds can be slashed twice
    function assert_Snap_StakerWithdrawableShares_AfterAVSSlash_BCSlash(
        User staker,
        AllocateParams memory allocateParams,
        SlashingParams memory slashingParams,
        string memory err
    ) internal {
        require(allocateParams.strategies.length == 1 && slashingParams.strategies.length == 1, "only beacon strategy supported");
        require(allocateParams.strategies[0] == BEACONCHAIN_ETH_STRAT, "only beacon strategy supported");
        require(slashingParams.strategies[0] == BEACONCHAIN_ETH_STRAT, "only beacon strategy supported");

        uint curShares = _getWithdrawableShares(staker, allocateParams.strategies)[0];
        uint prevShares = _getPrevWithdrawableShares(staker, allocateParams.strategies)[0];
        uint depositShares = _getStakerDepositShares(staker, allocateParams.strategies)[0];

        // 1. The slashing factor and withdrawable shares should decrease by a factor of the BCSF
        // We use assertApproxEq on shares since intermediate division on calculation of slashing factor introduces some additional rounding error
        uint slashingFactor = _getSlashingFactor(staker, allocateParams.strategies[0]);
        uint prevSlashingFactor = _getPrevSlashingFactor(staker, allocateParams.strategies[0]);
        assertEq(prevSlashingFactor.mulWad(_getBeaconChainSlashingFactor(staker)), slashingFactor, err);
        assertApproxEqAbs(prevShares.mulWad(_getBeaconChainSlashingFactor(staker)), curShares, 1e2, err);

        /// 2. The delta in shares is given by:
        /// (depositShares * operatorMag) - (depositShares * operatorMag * BCSF)
        ///  = depositShares * operatorMag * (1 - BCSF)
        uint beaconChainSlashingFactor = _getBeaconChainSlashingFactor(staker);
        uint wadToSlash = slashingParams.wadsToSlash[0];
        uint originalAVSSlashedShares = depositShares.mulWadRoundUp(allocateParams.newMagnitudes[0].mulWadRoundUp(wadToSlash));
        {
            uint withdrawableSharesAfterAVSSlash = depositShares - originalAVSSlashedShares;
            uint expectedDelta = withdrawableSharesAfterAVSSlash.mulWad(WAD - beaconChainSlashingFactor);
            assertApproxEqAbs(prevShares - expectedDelta, curShares, 1e2, err);
        }

        /// 3. The attributable avs slashed shares should decrease by a factor of the BCSF
        /// Attributable avs slashed shares = originalWithdrawableShares - bcSlashedShares - curShares
        /// Where bcSlashedShares = originalWithdrawableShares * (1 - BCSF)
        uint bcSlashedShares = depositShares.mulWad(WAD - beaconChainSlashingFactor);
        uint attributableAVSSlashedShares = depositShares - bcSlashedShares - curShares;
        assertApproxEqAbs(originalAVSSlashedShares.mulWad(beaconChainSlashingFactor), attributableAVSSlashedShares, 1e2, err);
    }

    /// @dev Validates behavior of "restaking", i.e. that the funds can be slashed twice. Also validates
    ///      the edge case where a validator is proven prior to the BC slash.
    /// @dev These bounds are based off of rounding when avs and bc slashing occur together
    function assert_Snap_StakerWithdrawableShares_AVSSlash_ValidatorProven_BCSlash(
        User staker,
        uint originalWithdrawableShares,
        uint extraValidatorShares,
        AllocateParams memory allocateParams,
        SlashingParams memory slashingParams,
        string memory err
    ) internal {
        require(allocateParams.strategies.length == 1 && slashingParams.strategies.length == 1, "only beacon strategy supported");
        require(allocateParams.strategies[0] == BEACONCHAIN_ETH_STRAT, "only beacon strategy supported");
        require(slashingParams.strategies[0] == BEACONCHAIN_ETH_STRAT, "only beacon strategy supported");

        uint curShares = _getWithdrawableShares(staker, allocateParams.strategies)[0];
        uint prevShares = _getPrevWithdrawableShares(staker, allocateParams.strategies)[0];

        // 1. The withdrawable shares should decrease by a factor of the BCSF
        assertApproxEqAbs(prevShares.mulWad(_getBeaconChainSlashingFactor(staker)), curShares, 1e5, err);

        /// 2. The delta in shares is given by:
        /// (originalWithdrawableShares * operatorMag) + extraValidatorShares - (depositShares * operatorMag * BCSF * dsf)
        uint beaconChainSlashingFactor = _getBeaconChainSlashingFactor(staker);
        uint wadToSlash = slashingParams.wadsToSlash[0];
        uint originalAVSSlashedShares = originalWithdrawableShares.mulWadRoundUp(allocateParams.newMagnitudes[0].mulWadRoundUp(wadToSlash));
        uint withdrawableSharesAfterValidatorProven = originalWithdrawableShares - originalAVSSlashedShares + extraValidatorShares;
        uint expectedDelta = withdrawableSharesAfterValidatorProven.mulWad(WAD - beaconChainSlashingFactor);
        assertApproxEqAbs(prevShares - expectedDelta, curShares, 1e5, err);

        /// 3. The attributable avs slashed shares should decrease by a factor of the BCSF
        /// Attributable avs slashed shares = depositShares - bcSlashedShares - curShars
        /// Where bcSlashedShares = depositShares * (1 - BCSF)
        uint depositShares = _getStakerDepositShares(staker, allocateParams.strategies)[0];
        uint bcSlashedShares = depositShares.mulWad(WAD - beaconChainSlashingFactor);
        uint attributableAVSSlashedShares = depositShares - bcSlashedShares - curShares;
        assertApproxEqAbs(originalAVSSlashedShares.mulWad(beaconChainSlashingFactor), attributableAVSSlashedShares, 1e5, err);
    }

    // TODO: slashable stake

    ///
    ///                     SNAPSHOT ASSERTIONS: OPERATOR SHARES
    ///

    /// @dev Check that the operator has `addedShares` additional operator shares
    // for each strategy since the last snapshot
    function assert_Snap_Added_OperatorShares(User operator, IStrategy[] memory strategies, uint[] memory addedShares, string memory err)
        internal
    {
        uint[] memory curShares = _getOperatorShares(operator, strategies);
        // Use timewarp to get previous operator shares
        uint[] memory prevShares = _getPrevOperatorShares(operator, strategies);

        // For each strategy, check (prev + added == cur)
        for (uint i = 0; i < strategies.length; i++) {
            assertEq(prevShares[i] + addedShares[i], curShares[i], err);
        }
    }

    /// @dev Check that the operator has `removedShares` fewer operator shares
    /// for each strategy since the last snapshot
    function assert_Snap_Removed_OperatorShares(
        User operator,
        IStrategy[] memory strategies,
        uint[] memory removedShares,
        string memory err
    ) internal {
        uint[] memory curShares = _getOperatorShares(operator, strategies);
        // Use timewarp to get previous operator shares
        uint[] memory prevShares = _getPrevOperatorShares(operator, strategies);

        // For each strategy, check (prev - removed == cur)
        for (uint i = 0; i < strategies.length; i++) {
            assertEq(prevShares[i], curShares[i] + removedShares[i], err);
        }
    }

    /// @dev Check that the operator's shares in ALL strategies have not changed
    /// since the last snapshot
    function assert_Snap_Unchanged_OperatorShares(User operator, string memory err) internal {
        IStrategy[] memory strategies = allStrats;

        uint[] memory curShares = _getOperatorShares(operator, strategies);
        // Use timewarp to get previous operator shares
        uint[] memory prevShares = _getPrevOperatorShares(operator, strategies);

        // For each strategy, check (prev == cur)
        for (uint i = 0; i < strategies.length; i++) {
            assertEq(prevShares[i], curShares[i], err);
        }
    }

    function assert_Snap_Delta_OperatorShares(User operator, IStrategy[] memory strategies, int[] memory shareDeltas, string memory err)
        internal
    {
        uint[] memory curShares = _getOperatorShares(operator, strategies);
        // Use timewarp to get previous operator shares
        uint[] memory prevShares = _getPrevOperatorShares(operator, strategies);

        // For each strategy, check (prev + added == cur)
        for (uint i = 0; i < strategies.length; i++) {
            uint expectedShares;
            if (shareDeltas[i] < 0) expectedShares = prevShares[i] - uint(-shareDeltas[i]);
            else expectedShares = prevShares[i] + uint(shareDeltas[i]);
            assertEq(expectedShares, curShares[i], err);
        }
    }

    function assert_Snap_Slashed_OperatorShares(User operator, SlashingParams memory params, string memory err) internal {
        uint[] memory curShares = _getOperatorShares(operator, params.strategies);
        uint[] memory prevShares = _getPrevOperatorShares(operator, params.strategies);

        Magnitudes[] memory curMagnitudes = _getMagnitudes(operator, params.strategies);
        Magnitudes[] memory prevMagnitudes = _getPrevMagnitudes(operator, params.strategies);

        for (uint i = 0; i < params.strategies.length; i++) {
            // Slashing doesn't occur if the operator has no slashable magnitude
            // This prevents a div by 0 when calculating expected slashed
            uint expectedSlashed = prevMagnitudes[i].max == 0
                ? 0
                : SlashingLib.calcSlashedAmount({
                    operatorShares: prevShares[i],
                    prevMaxMagnitude: prevMagnitudes[i].max,
                    newMaxMagnitude: curMagnitudes[i].max
                });

            assertEq(curShares[i], prevShares[i] - expectedSlashed, err);
        }
    }

    function assert_Snap_Increased_BurnableShares(
        OperatorSet memory operatorSet,
        User operator,
        SlashingParams memory params,
        uint slashId,
        string memory err
    ) internal {
        uint[] memory curShares = _getOperatorShares(operator, params.strategies);
        uint[] memory prevShares = _getPrevOperatorShares(operator, params.strategies);

        for (uint i = 0; i < params.strategies.length; i++) {
            uint curBurnable = _getBurnOrRedistributableShares(operatorSet, slashId, params.strategies[i]);
            uint prevBurnable = _getPrevBurnOrRedistributableShares(operatorSet, slashId, params.strategies[i]);
            uint slashedAtLeast = prevShares[i] - curShares[i];
            // Not factoring in slashable shares in queue here, because that gets more complex (TODO)
            assertTrue(curBurnable >= (prevBurnable + slashedAtLeast), err);
        }
    }

    ///
    ///                         SNAPSHOT ASSERTIONS: STAKER SHARES
    ///

    /// @dev Check that the staker has `addedShares` additional deposit shares
    /// for each strategy since the last snapshot
    function assert_Snap_Added_Staker_DepositShares(
        User staker,
        IStrategy[] memory strategies,
        uint[] memory addedShares,
        string memory err
    ) internal {
        uint[] memory curShares = _getStakerDepositShares(staker, strategies);
        // Use timewarp to get previous staker shares
        uint[] memory prevShares = _getPrevStakerDepositShares(staker, strategies);

        // For each strategy, check (prev + added == cur)
        for (uint i = 0; i < strategies.length; i++) {
            assertApproxEqAbs(prevShares[i] + addedShares[i], curShares[i], 1, err);
        }
    }

    function assert_Snap_Added_Staker_DepositShares(User staker, IStrategy strat, uint addedShares, string memory err) internal {
        assert_Snap_Added_Staker_DepositShares(staker, strat.toArray(), addedShares.toArrayU256(), err);
    }

    /// @dev Check that the staker has `removedShares` fewer delegatable shares
    /// for each strategy since the last snapshot
    function assert_Snap_Removed_Staker_DepositShares(
        User staker,
        IStrategy[] memory strategies,
        uint[] memory removedShares,
        string memory err
    ) internal {
        uint[] memory curShares = _getStakerDepositShares(staker, strategies);
        // Use timewarp to get previous staker shares
        uint[] memory prevShares = _getPrevStakerDepositShares(staker, strategies);

        // For each strategy, check (prev - removed == cur)
        for (uint i = 0; i < strategies.length; i++) {
            assertEq(prevShares[i] - removedShares[i], curShares[i], err);
        }
    }

    function assert_Snap_Removed_Staker_DepositShares(User staker, IStrategy strat, uint removedShares, string memory err) internal {
        assert_Snap_Removed_Staker_DepositShares(staker, strat.toArray(), removedShares.toArrayU256(), err);
    }

    /// @dev Check that the staker's delegatable shares in ALL strategies have not changed
    /// since the last snapshot
    function assert_Snap_Unchanged_Staker_DepositShares(User staker, string memory err) internal {
        IStrategy[] memory strategies = allStrats;

        uint[] memory curShares = _getStakerDepositShares(staker, strategies);
        // Use timewarp to get previous staker shares
        uint[] memory prevShares = _getPrevStakerDepositShares(staker, strategies);

        // For each strategy, check (prev == cur)
        for (uint i = 0; i < strategies.length; i++) {
            assertEq(prevShares[i], curShares[i], err);
        }
    }

    /// @dev Check that the staker's withdrawable shares have increased by `addedShares`
    function assert_Snap_Added_Staker_WithdrawableShares(
        User staker,
        IStrategy[] memory strategies,
        uint[] memory addedShares,
        string memory err
    ) internal {
        uint[] memory curShares = _getStakerWithdrawableShares(staker, strategies);
        // Use timewarp to get previous staker shares
        uint[] memory prevShares = _getPrevStakerWithdrawableShares(staker, strategies);

        // For each strategy, check (prev - removed == cur)
        for (uint i = 0; i < strategies.length; i++) {
            assertEq(prevShares[i] + addedShares[i], curShares[i], err);
        }
    }

    /// @dev This is currently used by dual slashing tests
    /// TODO: potentially bound better
    function assert_Snap_Added_Staker_WithdrawableShares_AtLeast(
        User staker,
        IStrategy[] memory strategies,
        uint[] memory addedShares,
        string memory err
    ) internal {
        uint[] memory curShares = _getStakerWithdrawableShares(staker, strategies);
        // Use timewarp to get previous staker shares
        uint[] memory prevShares = _getPrevStakerWithdrawableShares(staker, strategies);

        // For each strategy, check (prev - removed == cur)
        for (uint i = 0; i < strategies.length; i++) {
            assertApproxEqAbs(prevShares[i] + addedShares[i], curShares[i], 1e3, err);
        }
    }

    /// @dev Check that the staker's withdrawable shares have decreased by `removedShares`
    function assert_Snap_Removed_Staker_WithdrawableShares(
        User staker,
        IStrategy[] memory strategies,
        uint[] memory removedShares,
        string memory err
    ) internal {
        uint[] memory curShares = _getStakerWithdrawableShares(staker, strategies);
        // Use timewarp to get previous staker shares
        uint[] memory prevShares = _getPrevStakerWithdrawableShares(staker, strategies);

        // For each strategy, check (prev - removed == cur)
        for (uint i = 0; i < strategies.length; i++) {
            assertEq(prevShares[i] - removedShares[i], curShares[i], err);
        }
    }

    function assert_Snap_Removed_Staker_WithdrawableShares(User staker, IStrategy strat, uint removedShares, string memory err) internal {
        assert_Snap_Removed_Staker_WithdrawableShares(staker, strat.toArray(), removedShares.toArrayU256(), err);
    }

    function assert_Snap_Unchanged_Staker_WithdrawableShares(User staker, IStrategy[] memory strategies, string memory err) internal {
        uint[] memory curShares = _getStakerWithdrawableShares(staker, strategies);
        uint[] memory prevShares = _getPrevStakerWithdrawableShares(staker, strategies);
        // For each strategy, check all shares have been withdrawn
        for (uint i = 0; i < strategies.length; i++) {
            assertEq(prevShares[i], curShares[i], err);
        }
    }

    /// @dev Check that the staker's withdrawable shares have changed by the expected amount
    function assert_Snap_Expected_Staker_WithdrawableShares_Delegation(
        User staker,
        User operator,
        IStrategy[] memory strategies,
        uint[] memory depositShares,
        string memory err
    ) internal {
        uint[] memory curShares = _getStakerWithdrawableShares(staker, strategies);
        // Use timewarp to get previous staker shares
        uint[] memory expectedShares = _getExpectedWithdrawableSharesDelegate(staker, operator, strategies, depositShares);

        // For each strategy, check expected == current
        for (uint i = 0; i < strategies.length; i++) {
            assertEq(expectedShares[i], curShares[i], err);
        }
    }

    function assert_Snap_Expected_Staker_WithdrawableShares_Deposit(
        User staker,
        User operator,
        IStrategy[] memory strategies,
        uint[] memory depositSharesAdded,
        string memory err
    ) internal {
        uint[] memory curShares = _getStakerWithdrawableShares(staker, strategies);
        // Use timewarp to get previous staker shares
        uint[] memory prevShares = _getPrevStakerWithdrawableShares(staker, strategies);
        uint[] memory expectedWithdrawableShares = new uint[](strategies.length);
        for (uint i = 0; i < strategies.length; i++) {
            if (prevShares[i] == 0 && depositSharesAdded[i] > 0) {
                expectedWithdrawableShares[i] =
                    _getExpectedWithdrawableSharesDeposit(staker, operator, strategies[i], depositSharesAdded[i]);
                assertEq(curShares[i], expectedWithdrawableShares[i], err);
            } else {
                uint[] memory prevDepositShares = _getPrevStakerDepositShares(staker, strategies);
                assertEq(
                    (prevDepositShares[i] + depositSharesAdded[i]).mulWad(_getDepositScalingFactor(staker, strategies[i]))
                        .mulWad(_getSlashingFactor(staker, strategies[i])),
                    curShares[i],
                    err
                );
            }
        }
    }

    /// @dev Check that the staker's withdrawable shares have decreased by at least `removedShares`
    /// @dev Used to handle overslashing of beacon chain
    function assert_Snap_Removed_Staker_WithdrawableShares_AtLeast(
        User staker,
        IStrategy[] memory strategies,
        uint[] memory removedShares,
        string memory err
    ) internal {
        uint[] memory curShares = _getStakerWithdrawableShares(staker, strategies);
        // Use timewarp to get previous staker shares
        uint[] memory prevShares = _getPrevStakerWithdrawableShares(staker, strategies);

        // Assert that the decrease in withdrawable shares is at least as much as the removed shares
        // Checking for expected rounding down behavior
        for (uint i = 0; i < strategies.length; i++) {
            assertGe(prevShares[i] - curShares[i], removedShares[i], err);
        }
    }

    /// @dev Check that the staker's withdrawable shares have decreased by at least `removedShares`
    /// @dev Used to handle overslashing of beacon chain with AVS slashings
    function assert_Snap_Removed_Staker_WithdrawableShares_AtLeast(
        User staker,
        IStrategy[] memory strategies,
        uint[] memory removedShares,
        uint errBound,
        string memory err
    ) internal {
        uint[] memory curShares = _getStakerWithdrawableShares(staker, strategies);
        // Use timewarp to get previous staker shares
        uint[] memory prevShares = _getPrevStakerWithdrawableShares(staker, strategies);

        // For each strategy, check diff between (prev-removed) and curr is at most 1 gwei
        for (uint i = 0; i < strategies.length; i++) {
            assertApproxEqAbs(prevShares[i] - removedShares[i], curShares[i], errBound, err);
        }
    }

    function assert_Snap_Removed_Staker_WithdrawableShares_AtLeast(User staker, IStrategy strat, uint removedShares, string memory err)
        internal
    {
        assert_Snap_Removed_Staker_WithdrawableShares_AtLeast(staker, strat.toArray(), removedShares.toArrayU256(), err);
    }

    function assert_Snap_Delta_StakerShares(User staker, IStrategy[] memory strategies, int[] memory shareDeltas, string memory err)
        internal
    {
        int[] memory curShares = _getStakerDepositSharesInt(staker, strategies);
        // Use timewarp to get previous staker shares
        int[] memory prevShares = _getPrevStakerDepositSharesInt(staker, strategies);

        // For each strategy, check (prev + added == cur)
        for (uint i = 0; i < strategies.length; i++) {
            assertEq(prevShares[i] + shareDeltas[i], curShares[i], err);
        }
    }

    function assert_Snap_Unchanged_DSF(User staker, IStrategy[] memory strategies, string memory err) internal {
        uint[] memory curDSFs = _getDepositScalingFactors(staker, strategies);
        uint[] memory prevDSFs = _getPrevDepositScalingFactors(staker, strategies);

        for (uint i = 0; i < strategies.length; i++) {
            assertEq(prevDSFs[i], curDSFs[i], err);
        }
    }

    function assert_Snap_Increased_DSF(User staker, IStrategy[] memory strategies, string memory err) internal {
        uint[] memory curDSFs = _getDepositScalingFactors(staker, strategies);
        uint[] memory prevDSFs = _getPrevDepositScalingFactors(staker, strategies);

        for (uint i = 0; i < strategies.length; i++) {
            assertGt(curDSFs[i], prevDSFs[i], err);
        }
    }

    function assert_Snap_WithinErrorBounds_DSF(User staker, IStrategy[] memory strategies, string memory err) internal {
        uint[] memory curDSFs = _getDepositScalingFactors(staker, strategies);
        uint[] memory prevDSFs = _getPrevDepositScalingFactors(staker, strategies);

        for (uint i = 0; i < strategies.length; i++) {
            assertApproxEqAbs(curDSFs[i], prevDSFs[i], 1e2, err);
        }
    }

    /// @dev Used to assert that the DSF is either increased or unchanged, depending on the slashing factor, on a deposit
    function assert_Snap_DSF_State_Deposit(User staker, IStrategy[] memory strategies, string memory err) internal {
        uint[] memory curDepositShares = _getStakerDepositShares(staker, strategies);
        uint[] memory prevDepositShares = _getPrevStakerDepositShares(staker, strategies);
        uint[] memory curDSFs = _getDepositScalingFactors(staker, strategies);
        uint[] memory prevDSFs = _getPrevDepositScalingFactors(staker, strategies);
        uint[] memory curSlashingFactors = _getSlashingFactors(staker, strategies);
        uint[] memory prevSlashingFactors = _getPrevSlashingFactors(staker, strategies);
        for (uint i = 0; i < strategies.length; i++) {
            // If there was never a slashing, no need to normalize
            if (curSlashingFactors[i] == WAD) {
                assertEq(prevDSFs[i], curDSFs[i], err); // No slashing, so DSF is unchanged
                assertEq(curDSFs[i], WAD, err); // DSF should have always been WAD
            }
            // If there was a slashing, and we deposit, normalize
            else {
                // If the DSF and slashing factor are already normalized against each other from a previous deposit (prevWithdrawableFactor very close to WAD)
                // and there have been no subsequent slashings, DSF "should" stay the same, but recomputing decreases it slightly due to
                // fixed point arithmetic rounding. Outer if is to prevent int underflow errors.
                uint prevWithdrawableFactor = prevDSFs[i].mulWad(prevSlashingFactors[i]);
                require(WAD >= prevWithdrawableFactor, "withdrawableFactor should always be less than or equal to WAD");
                if (WAD - prevWithdrawableFactor < 1e2 && prevDepositShares[i] > 0 && curSlashingFactors[i] == prevSlashingFactors[i]) {
                    assertApproxEqAbs(curDSFs[i], prevDSFs[i], 1e2, err);
                } else {
                    assertGt(curDSFs[i], prevDSFs[i], err); // Slashing, so DSF is increased
                }
            }
        }
    }

    /// @dev When completing withdrawals as shares, we must also handle the case where a staker completes a withdrawal for 0 shares
    function assert_Snap_DSF_State_WithdrawalAsShares(User staker, IStrategy[] memory strategies, string memory err) internal {
        uint[] memory curDepositShares = _getStakerDepositShares(staker, strategies);
        uint[] memory prevDepositShares = _getPrevStakerDepositShares(staker, strategies);
        uint[] memory curDSFs = _getDepositScalingFactors(staker, strategies);
        uint[] memory prevDSFs = _getPrevDepositScalingFactors(staker, strategies);
        uint[] memory curSlashingFactors = _getSlashingFactors(staker, strategies);
        uint[] memory prevSlashingFactors = _getPrevSlashingFactors(staker, strategies);

        for (uint i = 0; i < strategies.length; i++) {
            // If there was never a slashing, no need to normalize
            // If there was a slashing, but we complete a withdrawal for 0 shares, no need to normalize
            if (curSlashingFactors[i] == WAD || curDepositShares[i] == 0) {
                assertEq(prevDSFs[i], curDSFs[i], err);
                assertEq(curDSFs[i], WAD, err);
            }
            // If the staker has a slashingFactor of 0, any withdrawal as shares won't change the DSF
            else if (curSlashingFactors[i] == 0) {
                assertEq(prevDSFs[i], curDSFs[i], err);
            }
            // If there was a slashing and we complete a withdrawal for non-zero shares, normalize the DSF
            else {
                // If the DSF and slashing factor are already normalized against each other from a previous deposit (prevWithdrawableFactor very close to WAD)
                // and there have been no subsequent slashings, DSF "should" stay the same, but recomputing decreases it slightly due to
                // fixed point arithmetic rounding. Outer if is to prevent int underflow errors.
                uint prevWithdrawableFactor = prevDSFs[i].mulWad(prevSlashingFactors[i]);
                require(WAD >= prevWithdrawableFactor, "withdrawableFactor should always be less than or equal to WAD");
                if (WAD - prevWithdrawableFactor < 1e2 && prevDepositShares[i] > 0 && curSlashingFactors[i] == prevSlashingFactors[i]) {
                    assertApproxEqAbs(curDSFs[i], prevDSFs[i], 1e2, err);
                } else {
                    assertGt(curDSFs[i], prevDSFs[i], err); // Slashing, so DSF is increased
                }
            }
        }
    }

    /// @dev On a delegation, the DSF should be increased if the operator magnitude is non-WAD
    function assert_Snap_DSF_State_Delegation(
        User staker,
        IStrategy[] memory strategies,
        uint[] memory delegatableShares,
        string memory err
    ) internal {
        address operator = delegationManager.delegatedTo(address(staker));
        uint64[] memory maxMags = _getMaxMagnitudes(User(payable(operator)), strategies);

        for (uint i = 0; i < strategies.length; i++) {
            IStrategy[] memory stratArray = strategies[i].toArray();

            // If you are delegating with 0 shares, no need to normalize
            // If there was never an operator slashing, no need to normalize
            if (delegatableShares[i] == 0 || maxMags[i] == WAD) {
                assert_Snap_Unchanged_DSF(staker, stratArray, err);

                // If we are not a beaconChainStrategy, we should also have a DSF of WAD
                // We exclude BEACONCHAIN_ETH_STRAT because it could have had a non-WAD DSF from BC slashings
                if (strategies[i] != BEACONCHAIN_ETH_STRAT) assert_DSF_WAD(staker, stratArray, err);
            }
            // If there was an operator slashing, and delegating with non-zero shares, normalize
            else {
                assert_Snap_Increased_DSF(staker, stratArray, err); // Slashing, so DSF is increased
            }
        }
    }

    ///
    ///                     SNAPSHOT ASSERTIONS: STRATEGY SHARES
    ///
    function assert_Snap_Removed_StrategyShares(IStrategy[] memory strategies, uint[] memory removedShares, string memory err) internal {
        uint[] memory curShares = _getTotalStrategyShares(strategies);

        // Use timewarp to get previous strategy shares
        uint[] memory prevShares = _getPrevTotalStrategyShares(strategies);

        for (uint i = 0; i < strategies.length; i++) {
            // Ignore BeaconChainETH strategy since it doesn't keep track of global strategy shares
            if (strategies[i] == BEACONCHAIN_ETH_STRAT) continue;
            uint prevShare = prevShares[i];
            uint curShare = curShares[i];

            assertApproxEqAbs(prevShare - removedShares[i], curShare, 1, err);
        }
    }

    function assert_Snap_Unchanged_StrategyShares(IStrategy[] memory strategies, string memory err) internal {
        uint[] memory curShares = _getTotalStrategyShares(strategies);

        // Use timewarp to get previous strategy shares
        uint[] memory prevShares = _getPrevTotalStrategyShares(strategies);

        for (uint i = 0; i < strategies.length; i++) {
            uint prevShare = prevShares[i];
            uint curShare = curShares[i];

            assertEq(prevShare, curShare, err);
        }
    }

    function assert_SlashableStake_Decrease_BCSlash(User staker) internal {
        if (delegationManager.isDelegated(address(staker))) {
            address operator = delegationManager.delegatedTo(address(staker));
            (OperatorSet[] memory operatorSets, Allocation[] memory allocations) = _getStrategyAllocations(operator, BEACONCHAIN_ETH_STRAT);
            for (uint i = 0; i < operatorSets.length; i++) {
                if (allocations[i].currentMagnitude > 0) {
                    assert_Snap_StakeBecomeUnslashable(
                        User(payable(operator)),
                        operatorSets[i],
                        BEACONCHAIN_ETH_STRAT.toArray(),
                        "operator should have minSlashableStake decreased"
                    );
                }
            }
        }
    }

    ///
    ///                   SNAPSHOT ASSERTIONS: UNDERLYING TOKEN
    ///

    /// @dev Check that the staker has `addedTokens` additional underlying tokens
    // since the last snapshot
    function assert_Snap_Added_TokenBalances(User staker, IERC20[] memory tokens, uint[] memory addedTokens, string memory err) internal {
        uint[] memory curTokenBalances = _getTokenBalances(staker, tokens);
        // Use timewarp to get previous token balances
        uint[] memory prevTokenBalances = _getPrevTokenBalances(staker, tokens);

        for (uint i = 0; i < tokens.length; i++) {
            uint prevBalance = prevTokenBalances[i];
            uint curBalance = curTokenBalances[i];

            assertApproxEqAbs(prevBalance + addedTokens[i], curBalance, 1, err);
        }
    }

    /// @dev Check that the staker has `removedTokens` fewer underlying tokens
    // since the last snapshot
    function assert_Snap_Removed_TokenBalances(User staker, IStrategy[] memory strategies, uint[] memory removedTokens, string memory err)
        internal
    {
        IERC20[] memory tokens = _getUnderlyingTokens(strategies);

        uint[] memory curTokenBalances = _getTokenBalances(staker, tokens);
        // Use timewarp to get previous token balances
        uint[] memory prevTokenBalances = _getPrevTokenBalances(staker, tokens);

        for (uint i = 0; i < tokens.length; i++) {
            uint prevBalance = prevTokenBalances[i];
            uint curBalance = curTokenBalances[i];

            assertEq(prevBalance - removedTokens[i], curBalance, err);
        }
    }

    /// @dev Check that the staker's underlying token balance for ALL tokens have
    /// not changed since the last snapshot
    function assert_Snap_Unchanged_TokenBalances(User staker, string memory err) internal {
        IERC20[] memory tokens = allTokens;

        uint[] memory curTokenBalances = _getTokenBalances(staker, tokens);
        // Use timewarp to get previous token balances
        uint[] memory prevTokenBalances = _getPrevTokenBalances(staker, tokens);

        for (uint i = 0; i < tokens.length; i++) {
            assertEq(prevTokenBalances[i], curTokenBalances[i], err);
        }
    }

    ///
    ///                   SNAPSHOT ASSERTIONS: QUEUED WITHDRAWALS
    ///
    function assert_Snap_Added_QueuedWithdrawals(User staker, Withdrawal[] memory withdrawals, string memory err) internal {
        uint curQueuedWithdrawals = _getCumulativeWithdrawals(staker);
        // Use timewarp to get previous cumulative withdrawals
        uint prevQueuedWithdrawals = _getPrevCumulativeWithdrawals(staker);

        assertEq(prevQueuedWithdrawals + withdrawals.length, curQueuedWithdrawals, err);
    }

    function assert_Snap_Added_QueuedWithdrawal(
        User staker,
        Withdrawal memory,
        /*withdrawal*/
        string memory err
    )
        internal
    {
        uint curQueuedWithdrawal = _getCumulativeWithdrawals(staker);
        // Use timewarp to get previous cumulative withdrawals
        uint prevQueuedWithdrawal = _getPrevCumulativeWithdrawals(staker);

        assertEq(prevQueuedWithdrawal + 1, curQueuedWithdrawal, err);
    }

    ///
    ///                      SNAPSHOT ASSERTIONS: EIGENPODS
    ///
    function assert_Snap_Added_ActiveValidatorCount(User staker, uint addedValidators, string memory err) internal {
        uint curActiveValidatorCount = _getActiveValidatorCount(staker);
        uint prevActiveValidatorCount = _getPrevActiveValidatorCount(staker);

        assertEq(prevActiveValidatorCount + addedValidators, curActiveValidatorCount, err);
    }

    function assert_Snap_Removed_ActiveValidatorCount(User staker, uint exitedValidators, string memory err) internal {
        uint curActiveValidatorCount = _getActiveValidatorCount(staker);
        uint prevActiveValidatorCount = _getPrevActiveValidatorCount(staker);

        assertEq(curActiveValidatorCount + exitedValidators, prevActiveValidatorCount, err);
    }

    function assert_Snap_Unchanged_ActiveValidatorCount(User staker, string memory err) internal {
        uint curActiveValidatorCount = _getActiveValidatorCount(staker);
        uint prevActiveValidatorCount = _getPrevActiveValidatorCount(staker);

        assertEq(curActiveValidatorCount, prevActiveValidatorCount, err);
    }

    function assert_Snap_Added_ActiveValidators(User staker, uint40[] memory addedValidators, string memory err) internal {
        bytes32[] memory pubkeyHashes = beaconChain.getPubkeyHashes(addedValidators);

        VALIDATOR_STATUS[] memory curStatuses = _getValidatorStatuses(staker, pubkeyHashes);
        VALIDATOR_STATUS[] memory prevStatuses = _getPrevValidatorStatuses(staker, pubkeyHashes);

        for (uint i = 0; i < curStatuses.length; i++) {
            assertTrue(prevStatuses[i] == VALIDATOR_STATUS.INACTIVE, err);
            assertTrue(curStatuses[i] == VALIDATOR_STATUS.ACTIVE, err);
        }
    }

    function assert_Snap_Removed_ActiveValidators(User staker, uint40[] memory exitedValidators, string memory err) internal {
        bytes32[] memory pubkeyHashes = beaconChain.getPubkeyHashes(exitedValidators);

        VALIDATOR_STATUS[] memory curStatuses = _getValidatorStatuses(staker, pubkeyHashes);
        VALIDATOR_STATUS[] memory prevStatuses = _getPrevValidatorStatuses(staker, pubkeyHashes);

        for (uint i = 0; i < curStatuses.length; i++) {
            assertTrue(prevStatuses[i] == VALIDATOR_STATUS.ACTIVE, err);
            assertTrue(curStatuses[i] == VALIDATOR_STATUS.WITHDRAWN, err);
        }
    }

    function assert_Snap_Created_Checkpoint(User staker, string memory err) internal {
        uint64 curCheckpointTimestamp = _getCheckpointTimestamp(staker);
        uint64 prevCheckpointTimestamp = _getPrevCheckpointTimestamp(staker);

        assertEq(prevCheckpointTimestamp, 0, err);
        assertTrue(curCheckpointTimestamp != 0, err);
    }

    function assert_Snap_Removed_Checkpoint(User staker, string memory err) internal {
        uint64 curCheckpointTimestamp = _getCheckpointTimestamp(staker);
        uint64 prevCheckpointTimestamp = _getPrevCheckpointTimestamp(staker);

        uint curProofsRemaining = _getProofsRemaining(staker);
        uint prevProofsRemaining = _getPrevProofsRemaining(staker);

        assertEq(curCheckpointTimestamp, 0, err);
        assertTrue(prevCheckpointTimestamp != 0, err);
        assertEq(curProofsRemaining, 0, err);
        assertTrue(prevProofsRemaining != 0, err);
    }

    function assert_Snap_Unchanged_Checkpoint(User staker, string memory err) internal {
        uint64 curCheckpointTimestamp = _getCheckpointTimestamp(staker);
        uint64 prevCheckpointTimestamp = _getPrevCheckpointTimestamp(staker);

        assertEq(curCheckpointTimestamp, prevCheckpointTimestamp, err);
    }

    function assert_Snap_Unchanged_CheckpointBlockRoot(User staker, string memory err) internal {
        bytes32 curBlockRoot = _getCheckpointBlockRoot(staker);
        bytes32 prevBlockRoot = _getPrevCheckpointBlockRoot(staker);

        assertEq(curBlockRoot, prevBlockRoot, err);
    }

    function assert_Snap_Updated_LastCheckpoint(User staker, string memory err) internal {
        // Sorry for the confusing naming... the pod variable is called `lastCheckpointTimestamp`
        uint64 curLastCheckpointTimestamp = _getLastCheckpointTimestamp(staker);
        uint64 prevLastCheckpointTimestamp = _getPrevLastCheckpointTimestamp(staker);

        assertTrue(curLastCheckpointTimestamp > prevLastCheckpointTimestamp, err);
    }

    function assert_Snap_Added_PodBalanceToWithdrawable(User staker, string memory err) internal {
        uint64 curWithdrawableRestakedGwei = _getWithdrawableRestakedGwei(staker);
        uint64 prevWithdrawableRestakedGwei = _getPrevWithdrawableRestakedGwei(staker);

        uint64 prevCheckpointPodBalanceGwei = _getPrevCheckpointPodBalanceGwei(staker);

        assertEq(prevWithdrawableRestakedGwei + prevCheckpointPodBalanceGwei, curWithdrawableRestakedGwei, err);
    }

    function assert_Snap_Added_WithdrawableGwei(User staker, uint64 addedGwei, string memory err) internal {
        uint64 curWithdrawableRestakedGwei = _getWithdrawableRestakedGwei(staker);
        uint64 prevWithdrawableRestakedGwei = _getPrevWithdrawableRestakedGwei(staker);

        assertEq(prevWithdrawableRestakedGwei + addedGwei, curWithdrawableRestakedGwei, err);
    }

    function assert_Snap_Unchanged_WithdrawableGwei(User staker, string memory err) internal {
        uint64 curWithdrawableRestakedGwei = _getWithdrawableRestakedGwei(staker);
        uint64 prevWithdrawableRestakedGwei = _getPrevWithdrawableRestakedGwei(staker);

        assertEq(prevWithdrawableRestakedGwei, curWithdrawableRestakedGwei, err);
    }

    function assert_Snap_Added_BalanceExitedGwei(User staker, uint64 addedGwei, string memory err) internal {
        uint64 curCheckpointTimestamp = _getCheckpointTimestamp(staker);
        uint64 prevCheckpointTimestamp = _getPrevCheckpointTimestamp(staker);

        // If we just finalized a checkpoint, that's the timestamp we want to use
        // to look up checkpoint balances exited
        uint64 targetTimestamp = curCheckpointTimestamp;
        if (curCheckpointTimestamp != prevCheckpointTimestamp) targetTimestamp = prevCheckpointTimestamp;

        uint64 curExitedBalanceGwei = _getCheckpointBalanceExited(staker, targetTimestamp);
        uint64 prevExitedBalanceGwei = _getPrevCheckpointBalanceExited(staker, targetTimestamp);

        assertEq(prevExitedBalanceGwei + addedGwei, curExitedBalanceGwei, err);
    }

    function assert_Snap_Decreased_BCSF(User staker, string memory err) internal {
        uint64 curBCSF = _getBeaconChainSlashingFactor(staker);
        uint64 prevBCSF = _getPrevBeaconChainSlashingFactor(staker);

        assertLt(curBCSF, prevBCSF, err);
    }

    function assert_Snap_Unchanged_BCSF(User staker, string memory err) internal {
        uint64 curBCSF = _getBeaconChainSlashingFactor(staker);
        uint64 prevBCSF = _getPrevBeaconChainSlashingFactor(staker);

        assertEq(curBCSF, prevBCSF, err);
    }

    ///
    ///                             UTILITY METHODS
    ///

    /// @dev Fetches the opreator's allocation delay; asserts that it is set
    function _getExistingAllocationDelay(User operator) internal view returns (uint32) {
        (bool isSet, uint32 delay) = allocationManager.getAllocationDelay(address(operator));
        assertTrue(isSet, "_getExistingAllocationDelay: expected allocation delay to be set");

        return delay;
    }

    /// @dev Generate params to allocate all available magnitude to each strategy in the operator set
    function _genAllocation_AllAvailable(User operator, OperatorSet memory operatorSet)
        internal
        view
        returns (AllocateParams memory params)
    {
        return _genAllocation_AllAvailable({
            operator: operator,
            operatorSet: operatorSet,
            strategies: allocationManager.getStrategiesInOperatorSet(operatorSet)
        });
    }

    /// @dev Generate params to allocate all available magnitude to each strategy in the operator set
    function _genAllocation_AllAvailable(User operator, OperatorSet memory operatorSet, IStrategy[] memory strategies)
        internal
        view
        returns (AllocateParams memory params)
    {
        params.operatorSet = operatorSet;
        params.strategies = strategies;
        params.newMagnitudes = new uint64[](params.strategies.length);

        for (uint i = 0; i < params.strategies.length; i++) {
            IStrategy strategy = params.strategies[i];
            params.newMagnitudes[i] = allocationManager.getMaxMagnitude(address(operator), strategy);
        }
    }

    /// @dev Gen params to allocate half of available magnitude to each strategy in the operator set
    /// returns the params to complete this allocation
    function _genAllocation_HalfAvailable(User operator, OperatorSet memory operatorSet)
        internal
        view
        returns (AllocateParams memory params)
    {
        return _genAllocation_HalfAvailable({
            operator: operator,
            operatorSet: operatorSet,
            strategies: allocationManager.getStrategiesInOperatorSet(operatorSet)
        });
    }

    /// @dev Gen params to allocate half of available magnitude to each strategy in the operator set
    /// returns the params to complete this allocation
    function _genAllocation_HalfAvailable(User operator, OperatorSet memory operatorSet, IStrategy[] memory strategies)
        internal
        view
        returns (AllocateParams memory params)
    {
        params.operatorSet = operatorSet;
        params.strategies = strategies;
        params.newMagnitudes = new uint64[](params.strategies.length);

        Allocation[] memory allocations = _getAllocations(operator, operatorSet, strategies);
        Magnitudes[] memory magnitudes = _getMagnitudes(operator, strategies);

        for (uint i = 0; i < params.strategies.length; i++) {
            uint64 halfAvailable = uint64(magnitudes[i].allocatable) / 2;
            params.newMagnitudes[i] = allocations[i].currentMagnitude + halfAvailable;
        }
    }

    /// @dev Generate params to allocate a random portion of available magnitude to each strategy
    /// in the operator set. All strategies will have a nonzero allocation, and the minimum allocation
    /// will be 10% of available magnitude
    function _genAllocation_Rand(User operator, OperatorSet memory operatorSet) internal returns (AllocateParams memory params) {
        params.operatorSet = operatorSet;
        params.strategies = allocationManager.getStrategiesInOperatorSet(operatorSet);
        params.newMagnitudes = new uint64[](params.strategies.length);

        Allocation[] memory allocations = _getAllocations(operator, operatorSet, params.strategies);
        Magnitudes[] memory magnitudes = _getMagnitudes(operator, params.strategies);

        for (uint i = 0; i < params.strategies.length; i++) {
            // minimum of 10%, maximum of 100%. increments of 10%.
            uint r = _randUint({min: 1, max: 10});
            uint64 allocation = uint64(magnitudes[i].allocatable) / uint64(r);

            params.newMagnitudes[i] = allocations[i].currentMagnitude + allocation;
        }
    }

    /// @dev Generates params for a half deallocation from all strategies the operator is allocated to in the operator set
    function _genDeallocation_HalfRemaining(User operator, OperatorSet memory operatorSet)
        internal
        view
        returns (AllocateParams memory params)
    {
        return _genDeallocation_HalfRemaining({
            operator: operator,
            operatorSet: operatorSet,
            strategies: allocationManager.getStrategiesInOperatorSet(operatorSet)
        });
    }

    /// @dev Generates params for a half deallocation from all strategies the operator is allocated to in the operator set
    function _genDeallocation_HalfRemaining(User operator, OperatorSet memory operatorSet, IStrategy[] memory strategies)
        internal
        view
        returns (AllocateParams memory params)
    {
        params.operatorSet = operatorSet;
        params.strategies = strategies;
        params.newMagnitudes = new uint64[](params.strategies.length);

        for (uint i = 0; i < params.strategies.length; i++) {
            IStrategy strategy = params.strategies[i];
            params.newMagnitudes[i] = allocationManager.getEncumberedMagnitude(address(operator), strategy) / 2;
        }
    }

    /// @dev Generates params for a full deallocation from all strategies the operator is allocated to in the operator set
    function _genDeallocation_Full(User operator, OperatorSet memory operatorSet) internal view returns (AllocateParams memory params) {
        return _genDeallocation_Full(operator, operatorSet, allocationManager.getStrategiesInOperatorSet(operatorSet));
    }

    /// @dev Generates params for a full deallocation from all strategies the operator is allocated to in the operator set
    function _genDeallocation_Full(User, OperatorSet memory operatorSet, IStrategy[] memory strategies)
        internal
        pure
        returns (AllocateParams memory params)
    {
        params.operatorSet = operatorSet;
        params.strategies = strategies;
        params.newMagnitudes = new uint64[](params.strategies.length);
    }

    /// Generate random slashing between 1 and 99%
    function _genSlashing_Rand(User operator, OperatorSet memory operatorSet) internal returns (SlashingParams memory params) {
        params.operator = address(operator);
        params.operatorSetId = operatorSet.id;
        params.description = "genSlashing_Rand";
        params.strategies = allocationManager.getStrategiesInOperatorSet(operatorSet).sort();
        params.wadsToSlash = new uint[](params.strategies.length);

        /// 1% * rand(1, 99)
        uint slashWad = 1e16 * _randUint({min: 1, max: 99});

        for (uint i = 0; i < params.wadsToSlash.length; i++) {
            params.wadsToSlash[i] = slashWad;
        }
    }

    function _genSlashing_Half(User operator, OperatorSet memory operatorSet) internal returns (SlashingParams memory params) {
        params.operator = address(operator);
        params.operatorSetId = operatorSet.id;
        params.description = "genSlashing_Half";
        params.strategies = allocationManager.getStrategiesInOperatorSet(operatorSet).sort();
        params.wadsToSlash = new uint[](params.strategies.length);

        // slash 50%
        for (uint i = 0; i < params.wadsToSlash.length; i++) {
            params.wadsToSlash[i] = 5e17;
        }
    }

    function _genSlashing_Full(User operator, OperatorSet memory operatorSet) internal returns (SlashingParams memory params) {
        params.operator = address(operator);
        params.operatorSetId = operatorSet.id;
        params.description = "_genSlashing_Full";
        params.strategies = allocationManager.getStrategiesInOperatorSet(operatorSet).sort();
        params.wadsToSlash = new uint[](params.strategies.length);

        // slash 100%
        for (uint i = 0; i < params.wadsToSlash.length; i++) {
            params.wadsToSlash[i] = 1e18;
        }
    }

    function _genSlashing_SingleStrategy(User operator, OperatorSet memory operatorSet, IStrategy strategy)
        internal
        returns (SlashingParams memory params)
    {
        params.operator = address(operator);
        params.operatorSetId = operatorSet.id;
        params.description = "_genSlashing_SingleStrategy";
        params.strategies = strategy.toArray();
        params.wadsToSlash = new uint[](params.strategies.length);

        // slash 100%
        for (uint i = 0; i < params.wadsToSlash.length; i++) {
            params.wadsToSlash[i] = 1e18;
        }
    }

    function _genSlashing_Custom(User operator, OperatorSet memory operatorSet, uint wadsToSlash)
        internal
        returns (SlashingParams memory params)
    {
        params.operator = address(operator);
        params.operatorSetId = operatorSet.id;
        params.description = "_genSlashing_Custom";
        params.strategies = allocationManager.getStrategiesInOperatorSet(operatorSet).sort();
        params.wadsToSlash = new uint[](params.strategies.length);

        for (uint i = 0; i < params.wadsToSlash.length; i++) {
            params.wadsToSlash[i] = wadsToSlash;
        }
    }

    function _randWadToSlash() internal returns (uint) {
        return _randUint({min: 0.01 ether, max: 1 ether});
    }

    function _strategiesAndWadsForFullSlash(OperatorSet memory operatorSet)
        internal
        returns (IStrategy[] memory strategies, uint[] memory wadsToSlash)
    {
        // Get list of all strategies in an operator set.
        strategies = allocationManager.getStrategiesInOperatorSet(operatorSet);

        wadsToSlash = new uint[](strategies.length);

        for (uint i; i < strategies.length; ++i) {
            wadsToSlash[i] = 1 ether;
        }

        return (strategies.sort(), wadsToSlash);
    }

    function _strategiesAndWadsForRandFullSlash(OperatorSet memory operatorSet)
        internal
        returns (IStrategy[] memory strategies, uint[] memory wadsToSlash)
    {
        // Get list of all strategies in an operator set.
        strategies = allocationManager.getStrategiesInOperatorSet(operatorSet);

        // Randomly select a subset of strategies to slash.
        uint len = _randUint({min: 1, max: strategies.length});

        // Update length of strategies array.
        assembly {
            mstore(strategies, len)
        }

        wadsToSlash = new uint[](len);

        // Fully slash each selected strategy
        for (uint i; i < len; ++i) {
            wadsToSlash[i] = 1 ether;
        }

        return (strategies.sort(), wadsToSlash);
    }

    function _randMagnitudes(uint64 sum, uint len) internal returns (uint64[] memory magnitudes) {
        magnitudes = new uint64[](len);

        if (sum == 0 || len == 0) return magnitudes;

        uint64 remaining = sum;

        for (uint i; i < len; ++i) {
            if (i == len - 1) {
                magnitudes[i] = remaining;
            } else {
                magnitudes[i] = uint64(_randUint(0, remaining / (len - i)));
                remaining -= magnitudes[i];
            }
        }
    }

    function _maxMagnitudes(OperatorSet memory operatorSet, User operator) internal view returns (uint64[] memory magnitudes) {
        IStrategy[] memory strategies = allocationManager.getStrategiesInOperatorSet(operatorSet);
        uint len = strategies.length;
        magnitudes = new uint64[](len);

        if (len == 0) return magnitudes;

        for (uint i; i < len; ++i) {
            magnitudes[i] = allocationManager.getMaxMagnitude(address(operator), strategies[i]);
        }
    }

    function _randWithdrawal(IStrategy[] memory strategies, uint[] memory shares) internal returns (IStrategy[] memory, uint[] memory) {
        uint stratsToWithdraw = _randUint({min: 1, max: strategies.length});

        IStrategy[] memory withdrawStrats = new IStrategy[](stratsToWithdraw);
        uint[] memory withdrawShares = new uint[](stratsToWithdraw);

        for (uint i = 0; i < stratsToWithdraw; i++) {
            uint sharesToWithdraw;

            if (strategies[i] == BEACONCHAIN_ETH_STRAT) {
                // For native eth, withdraw a random amount of gwei (at least 1)
                uint portion = _randUint({min: 1, max: shares[i] / GWEI_TO_WEI});
                portion *= GWEI_TO_WEI;

                sharesToWithdraw = shares[i] - portion;
            } else {
                // For LSTs, withdraw a random amount of shares (at least 1)
                uint portion = _randUint({min: 1, max: shares[i]});

                sharesToWithdraw = shares[i] - portion;
            }

            withdrawStrats[i] = strategies[i];
            withdrawShares[i] = sharesToWithdraw;
        }

        return (withdrawStrats, withdrawShares);
    }

    /// Helpful getters:
    function _randSlashType() internal returns (BeaconChainMock.SlashType) {
        return BeaconChainMock.SlashType(_randUint({min: 0, max: 2}));
    }

    function _randBalanceUpdate(User staker, IStrategy[] memory strategies) internal returns (int[] memory, int[] memory, int[] memory) {
        int[] memory tokenDeltas = new int[](strategies.length);
        int[] memory stakerShareDeltas = new int[](strategies.length);
        int[] memory operatorShareDeltas = new int[](strategies.length);

        for (uint i = 0; i < strategies.length; i++) {
            IStrategy strat = strategies[i];

            if (strat == BEACONCHAIN_ETH_STRAT) {
                // For native ETH, we're either going to slash the staker's validators,
                // or award them consensus rewards. In either case, the magnitude of
                // the balance update depends on the staker's active validator count
                uint activeValidatorCount = staker.pod().activeValidatorCount();
                int64 deltaGwei;
                if (_randBool()) {
                    uint40[] memory validators = staker.getActiveValidators();
                    emit log_named_uint("slashing validators", validators.length);

                    deltaGwei = -int64(beaconChain.slashValidators(validators, BeaconChainMock.SlashType.Minor));
                    beaconChain.advanceEpoch_NoRewards();

                    emit log_named_int("slashed amount", deltaGwei);
                } else {
                    emit log("generating consensus rewards for validators");

                    deltaGwei = int64(uint64(activeValidatorCount) * beaconChain.CONSENSUS_REWARD_AMOUNT_GWEI());
                    beaconChain.advanceEpoch_NoWithdraw();
                }

                tokenDeltas[i] = int(deltaGwei) * int(GWEI_TO_WEI);

                stakerShareDeltas[i] = tokenDeltas[i];
                operatorShareDeltas[i] = _calcNativeETHOperatorShareDelta(staker, stakerShareDeltas[i]);

                emit log_named_int("beacon balance delta (gwei): ", deltaGwei);
                emit log_named_int("staker share delta (gwei): ", stakerShareDeltas[i] / int(GWEI_TO_WEI));
                emit log_named_int("operator share delta (gwei): ", operatorShareDeltas[i] / int(GWEI_TO_WEI));
            } else {
                // For LSTs, mint a random token amount
                uint portion = _randUint({min: MIN_BALANCE, max: MAX_BALANCE});
                StdCheats.deal(address(strat.underlyingToken()), address(staker), portion);

                int delta = int(portion);
                tokenDeltas[i] = delta;
                stakerShareDeltas[i] = int(strat.underlyingToShares(uint(delta)));
                operatorShareDeltas[i] = int(strat.underlyingToShares(uint(delta)));
            }
        }
        return (tokenDeltas, stakerShareDeltas, operatorShareDeltas);
    }

    function _calcNativeETHOperatorShareDelta(User staker, int shareDelta) internal view returns (int) {
        // TODO: Maybe we update parent method to have an M2 and Slashing version?
        int curPodOwnerShares = eigenPodManager.podOwnerDepositShares(address(staker));
        int newPodOwnerShares = curPodOwnerShares + shareDelta;

        if (curPodOwnerShares <= 0) {
            // if the shares started negative and stayed negative, then there cannot have been an increase in delegateable shares
            if (newPodOwnerShares <= 0) return 0;
            // if the shares started negative and became positive, then the increase in delegateable shares is the ending share amount
            else return newPodOwnerShares;
        } else {
            // if the shares started positive and became negative, then the decrease in delegateable shares is the starting share amount
            if (newPodOwnerShares <= 0) return (-curPodOwnerShares);
            // if the shares started positive and stayed positive, then the change in delegateable shares
            // is the difference between starting and ending amounts
            else return (newPodOwnerShares - curPodOwnerShares);
        }
    }

    function _calculateExpectedShares(Withdrawal memory withdrawal) internal view returns (uint[] memory) {
        bytes32 root = delegationManager.calculateWithdrawalRoot(withdrawal);

        (, uint[] memory shares) = delegationManager.getQueuedWithdrawal(root);
        return shares;
    }

    /// @dev For some strategies/underlying token balances, calculate the expected shares received
    /// from depositing all tokens
    function _calculateExpectedShares(IStrategy[] memory strategies, uint[] memory tokenBalances) internal returns (uint[] memory) {
        uint[] memory expectedShares = new uint[](strategies.length);

        for (uint i = 0; i < strategies.length; i++) {
            IStrategy strat = strategies[i];

            uint tokenBalance = tokenBalances[i];
            if (strat == BEACONCHAIN_ETH_STRAT) expectedShares[i] = tokenBalance;
            else expectedShares[i] = strat.underlyingToShares(tokenBalance);
        }

        return expectedShares;
    }

    /// @dev For some strategies/underlying token balances, calculate the expected shares received
    /// from depositing all tokens
    function _calculateExpectedTokens(IStrategy[] memory strategies, uint[] memory shares) internal returns (uint[] memory) {
        uint[] memory expectedTokens = new uint[](strategies.length);

        for (uint i = 0; i < strategies.length; i++) {
            IStrategy strat = strategies[i];

            if (strat == BEACONCHAIN_ETH_STRAT) {
                // We round down expected tokens to the nearest gwei
                expectedTokens[i] = (shares[i] / GWEI_TO_WEI) * GWEI_TO_WEI;
            } else {
                expectedTokens[i] = strat.sharesToUnderlying(shares[i]);
            }
        }

        return expectedTokens;
    }

    function _getWithdrawalHashes(Withdrawal[] memory withdrawals) internal view returns (bytes32[] memory) {
        bytes32[] memory withdrawalRoots = new bytes32[](withdrawals.length);

        for (uint i = 0; i < withdrawals.length; i++) {
            withdrawalRoots[i] = delegationManager.calculateWithdrawalRoot(withdrawals[i]);
        }

        return withdrawalRoots;
    }

    /// @dev Converts a list of strategies to underlying tokens
    function _getUnderlyingTokens(IStrategy[] memory strategies) internal view returns (IERC20[] memory) {
        IERC20[] memory tokens = new IERC20[](strategies.length);

        for (uint i = 0; i < tokens.length; i++) {
            IStrategy strat = strategies[i];

            if (strat == BEACONCHAIN_ETH_STRAT) tokens[i] = NATIVE_ETH;
            else tokens[i] = strat.underlyingToken();
        }

        return tokens;
    }

    modifier timewarp() {
        uint curState = timeMachine.travelToLast();
        _;
        timeMachine.travel(curState);
    }

    /// @dev Rolls forward by the minimum withdrawal delay blocks.
    function _rollBlocksForCompleteWithdrawals(Withdrawal[] memory withdrawals) internal {
        uint latest;
        for (uint i = 0; i < withdrawals.length; ++i) {
            if (withdrawals[i].startBlock > latest) latest = withdrawals[i].startBlock;
        }
        cheats.roll(latest + delegationManager.minWithdrawalDelayBlocks() + 1);
    }

    function _rollForward_AllocationConfigurationDelay() internal {
        rollForward(allocationManager.ALLOCATION_CONFIGURATION_DELAY() + 1);
    }

    function _rollForward_AllocationDelay(User operator) internal {
        uint32 delay = _getExistingAllocationDelay(operator);
        rollForward(delay);
    }

    function _rollBackward_AllocationDelay(User operator) internal {
        uint32 delay = _getExistingAllocationDelay(operator);
        rollBackward(delay);
    }

    function _rollForward_DeallocationDelay() internal {
        rollForward(allocationManager.DEALLOCATION_DELAY() + 1);
    }

    function _rollBackward_DeallocationDelay() internal {
        rollBackward(allocationManager.DEALLOCATION_DELAY() + 1);
    }

    /// @dev Rolls forward by the default allocation delay blocks.
    function _rollBlocksForCompleteAllocation(User operator, OperatorSet memory operatorSet, IStrategy[] memory strategies) internal {
        uint latest;
        for (uint i = 0; i < strategies.length; ++i) {
            uint effectBlock = allocationManager.getAllocation(address(operator), operatorSet, strategies[i]).effectBlock;
            if (effectBlock > latest) latest = effectBlock;
        }
        cheats.roll(latest + 1);
    }

    /// @dev Rolls forward by the default allocation delay blocks.
    function _rollBlocksForCompleteAllocation(User operator, OperatorSet[] memory operatorSets, IStrategy[] memory strategies) internal {
        uint latest;
        for (uint i = 0; i < operatorSets.length; ++i) {
            for (uint j = 0; j < strategies.length; ++j) {
                uint effectBlock = allocationManager.getAllocation(address(operator), operatorSets[i], strategies[j]).effectBlock;
                if (effectBlock > latest) latest = effectBlock;
            }
        }
        cheats.roll(latest + 1);
    }

    /// @dev Uses timewarp modifier to get the operator set strategy allocations at the last snapshot.
    function _getPrevAllocations(User operator, OperatorSet memory operatorSet, IStrategy[] memory strategies)
        internal
        timewarp
        returns (Allocation[] memory)
    {
        return _getAllocations(operator, operatorSet, strategies);
    }

    /// @dev Looks up each strategy for an operator set and returns a list of operator allocations.
    function _getAllocations(User operator, OperatorSet memory operatorSet, IStrategy[] memory strategies)
        internal
        view
        returns (Allocation[] memory allocations)
    {
        allocations = new Allocation[](strategies.length);
        for (uint i = 0; i < strategies.length; ++i) {
            allocations[i] = allocationManager.getAllocation(address(operator), operatorSet, strategies[i]);
        }
    }

    function _getPrevAllocatedStrats(User operator, OperatorSet memory operatorSet) internal timewarp returns (IStrategy[] memory) {
        return _getAllocatedStrats(operator, operatorSet);
    }

    function _getAllocatedStrats(User operator, OperatorSet memory operatorSet) internal view returns (IStrategy[] memory) {
        return allocationManager.getAllocatedStrategies(address(operator), operatorSet);
    }

    function _getPrevAllocatedSets(User operator) internal timewarp returns (OperatorSet[] memory) {
        return _getAllocatedSets(operator);
    }

    function _getAllocatedSets(User operator) internal view returns (OperatorSet[] memory) {
        return allocationManager.getAllocatedSets(address(operator));
    }

    function _getPrevRegisteredSets(User operator) internal timewarp returns (OperatorSet[] memory) {
        return _getRegisteredSets(operator);
    }

    function _getRegisteredSets(User operator) internal view returns (OperatorSet[] memory) {
        return allocationManager.getRegisteredSets(address(operator));
    }

    function _getPrevMembers(OperatorSet memory operatorSet) internal timewarp returns (address[] memory) {
        return _getMembers(operatorSet);
    }

    function _getMembers(OperatorSet memory operatorSet) internal view returns (address[] memory) {
        return allocationManager.getMembers(operatorSet);
    }

    struct Magnitudes {
        uint encumbered;
        uint allocatable;
        uint max;
    }

    function _getPrevMagnitudes(User operator, IStrategy[] memory strategies) internal timewarp returns (Magnitudes[] memory) {
        return _getMagnitudes(operator, strategies);
    }

    function _getMagnitudes(User operator, IStrategy[] memory strategies) internal view returns (Magnitudes[] memory magnitudes) {
        magnitudes = new Magnitudes[](strategies.length);
        for (uint i = 0; i < strategies.length; ++i) {
            magnitudes[i] = Magnitudes({
                encumbered: allocationManager.getEncumberedMagnitude(address(operator), strategies[i]),
                allocatable: allocationManager.getAllocatableMagnitude(address(operator), strategies[i]),
                max: allocationManager.getMaxMagnitude(address(operator), strategies[i])
            });
        }
    }

    function _getMaxMagnitudes(User operator, IStrategy[] memory strategies) internal view returns (uint64[] memory) {
        return allocationManager.getMaxMagnitudes(address(operator), strategies);
    }

    function _getMaxMagnitudes(User operator, IStrategy[] memory strategies, uint32 blockNum) internal view returns (uint64[] memory) {
        return allocationManager.getMaxMagnitudesAtBlock(address(operator), strategies, blockNum);
    }

    function _getPrevMinSlashableStake(User operator, OperatorSet memory operatorSet, IStrategy[] memory strategies)
        internal
        timewarp
        returns (uint[] memory)
    {
        return _getMinSlashableStake(operator, operatorSet, strategies);
    }

    function _getPrevMinSlashableStake(address operator, OperatorSet memory operatorSet, IStrategy[] memory strategies)
        internal
        timewarp
        returns (uint[] memory)
    {
        return _getMinSlashableStake(operator, operatorSet, strategies);
    }

    function _getMinSlashableStake(User operator, OperatorSet memory operatorSet, IStrategy[] memory strategies)
        internal
        view
        returns (uint[] memory)
    {
        return allocationManager.getMinimumSlashableStake({
            operatorSet: operatorSet,
            operators: address(operator).toArray(),
            strategies: strategies,
            futureBlock: uint32(block.number)
        })[0];
    }

    function _getMinSlashableStake(address operator, OperatorSet memory operatorSet, IStrategy[] memory strategies)
        internal
        view
        returns (uint[] memory)
    {
        return allocationManager.getMinimumSlashableStake({
            operatorSet: operatorSet,
            operators: address(operator).toArray(),
            strategies: strategies,
            futureBlock: uint32(block.number)
        })[0];
    }

    function _getPrevAllocatedStake(User operator, OperatorSet memory operatorSet, IStrategy[] memory strategies)
        internal
        timewarp
        returns (uint[] memory)
    {
        return _getAllocatedStake(operator, operatorSet, strategies);
    }

    function _getAllocatedStake(User operator, OperatorSet memory operatorSet, IStrategy[] memory strategies)
        internal
        view
        returns (uint[] memory)
    {
        return allocationManager.getAllocatedStake({
            operatorSet: operatorSet,
            operators: address(operator).toArray(),
            strategies: strategies
        })[0];
    }

    function _getStrategyAllocations(User operator, IStrategy strategy)
        internal
        view
        returns (OperatorSet[] memory operatorSets, Allocation[] memory allocations)
    {
        (operatorSets, allocations) = allocationManager.getStrategyAllocations(address(operator), strategy);
    }

    function _getStrategyAllocations(address operator, IStrategy strategy)
        internal
        view
        returns (OperatorSet[] memory operatorSets, Allocation[] memory allocations)
    {
        (operatorSets, allocations) = allocationManager.getStrategyAllocations(operator, strategy);
    }

    function _getPrevOperatorSetRegistered(OperatorSet memory operatorSet) internal timewarp returns (bool) {
        return _getOperatorSetRegistered(operatorSet);
    }

    function _getOperatorSetRegistered(OperatorSet memory operatorSet) internal view returns (bool) {
        return allocationManager.isOperatorSet(operatorSet);
    }

    function _getPrevIsSlashable(User operator, OperatorSet memory operatorSet) internal timewarp returns (bool) {
        return _getIsSlashable(operator, operatorSet);
    }

    function _getIsSlashable(User operator, OperatorSet memory operatorSet) internal view returns (bool) {
        return allocationManager.isOperatorSlashable(address(operator), operatorSet);
    }

    function _getPrevIsMemberOfSet(User operator, OperatorSet memory operatorSet) internal timewarp returns (bool) {
        return _getIsMemberOfSet(operator, operatorSet);
    }

    function _getIsMemberOfSet(User operator, OperatorSet memory operatorSet) internal view returns (bool) {
        return allocationManager.isMemberOfOperatorSet(address(operator), operatorSet);
    }

    function _getPrevBurnOrRedistributableShares(OperatorSet memory operatorSet, uint slashId, IStrategy strategy)
        internal
        timewarp
        returns (uint)
    {
        return _getBurnOrRedistributableShares(operatorSet, slashId, strategy);
    }

    function _getBurnOrRedistributableShares(OperatorSet memory operatorSet, uint slashId, IStrategy strategy)
        internal
        view
        returns (uint)
    {
        return strategy == beaconChainETHStrategy
            ? eigenPodManager.burnableETHShares()
            : strategyManager.getBurnOrRedistributableShares(operatorSet, slashId, strategy);
    }

    function _getPrevSlashableSharesInQueue(User operator, IStrategy[] memory strategies) internal timewarp returns (uint[] memory) {
        return _getSlashableSharesInQueue(operator, strategies);
    }

    function _getSlashableSharesInQueue(User operator, IStrategy[] memory strategies) internal view returns (uint[] memory) {
        uint[] memory slashableShares = new uint[](strategies.length);

        for (uint i = 0; i < strategies.length; i++) {
            slashableShares[i] = delegationManager.getSlashableSharesInQueue(address(operator), strategies[i]);
        }

        return slashableShares;
    }

    /// @dev Uses timewarp modifier to get operator shares at the last snapshot
    function _getPrevOperatorShares(User operator, IStrategy[] memory strategies) internal timewarp returns (uint[] memory) {
        return _getOperatorShares(operator, strategies);
    }

    /// @dev Looks up each strategy and returns a list of the operator's shares
    function _getOperatorShares(User operator, IStrategy[] memory strategies) internal view returns (uint[] memory) {
        uint[] memory curShares = new uint[](strategies.length);

        for (uint i = 0; i < strategies.length; i++) {
            curShares[i] = delegationManager.operatorShares(address(operator), strategies[i]);
        }

        return curShares;
    }

    /// @dev Uses timewarp modifier to get staker shares at the last snapshot
    function _getPrevStakerDepositShares(User staker, IStrategy[] memory strategies) internal timewarp returns (uint[] memory) {
        return _getStakerDepositShares(staker, strategies);
    }

    /// @dev Looks up each strategy and returns a list of the staker's shares
    function _getStakerDepositShares(User staker, IStrategy[] memory strategies) internal view returns (uint[] memory) {
        uint[] memory curShares = new uint[](strategies.length);

        for (uint i = 0; i < strategies.length; i++) {
            IStrategy strat = strategies[i];

            if (strat == BEACONCHAIN_ETH_STRAT) {
                // This method should only be used for tests that handle positive
                // balances. Negative balances are an edge case that require
                // the own tests and helper methods.
                int shares = eigenPodManager.podOwnerDepositShares(address(staker));

                if (shares < 0) revert("_getStakerDepositShares: negative shares");

                curShares[i] = uint(shares);
            } else {
                curShares[i] = strategyManager.stakerDepositShares(address(staker), strat);
            }
        }

        return curShares;
    }

    /// @dev Uses timewarp modifier to get staker shares at the last snapshot
    function _getPrevStakerDepositSharesInt(User staker, IStrategy[] memory strategies) internal timewarp returns (int[] memory) {
        return _getStakerDepositSharesInt(staker, strategies);
    }

    /// @dev Looks up each strategy and returns a list of the staker's shares
    function _getStakerDepositSharesInt(User staker, IStrategy[] memory strategies) internal view returns (int[] memory) {
        int[] memory curShares = new int[](strategies.length);

        for (uint i = 0; i < strategies.length; i++) {
            IStrategy strat = strategies[i];

            if (strat == BEACONCHAIN_ETH_STRAT) curShares[i] = eigenPodManager.podOwnerDepositShares(address(staker));
            else curShares[i] = int(strategyManager.stakerDepositShares(address(staker), strat));
        }

        return curShares;
    }

    function _getStakerStrategyList(User staker) internal view returns (IStrategy[] memory) {
        return strategyManager.getStakerStrategyList(address(staker));
    }

    function _getPrevStakerWithdrawableShares(User staker, IStrategy[] memory strategies) internal timewarp returns (uint[] memory) {
        return _getStakerWithdrawableShares(staker, strategies);
    }

    function _getStakerWithdrawableShares(User staker, IStrategy[] memory strategies) internal view returns (uint[] memory) {
        (uint[] memory withdrawableShares,) = delegationManager.getWithdrawableShares(address(staker), strategies);
        return withdrawableShares;
    }

    function _calcWithdrawable(User staker, IStrategy[] memory strategies, uint[] memory depositSharesToWithdraw)
        internal
        view
        returns (uint[] memory)
    {
        uint[] memory withdrawableShares = new uint[](strategies.length);
        uint[] memory depositScalingFactors = _getDepositScalingFactors(staker, strategies);
        for (uint i = 0; i < strategies.length; i++) {
            withdrawableShares[i] =
                depositSharesToWithdraw[i].mulWad(depositScalingFactors[i]).mulWad(_getSlashingFactor(staker, strategies[i]));
        }
        return withdrawableShares;
    }

    /// @dev Uses timewarp modifier to get staker beacon chain scaling factor at the last snapshot
    function _getPrevBeaconChainSlashingFactor(User staker) internal timewarp returns (uint64) {
        return _getBeaconChainSlashingFactor(staker);
    }

    /// @dev Looks up the staker's beacon chain scaling factor
    function _getBeaconChainSlashingFactor(User staker) internal view returns (uint64) {
        return eigenPodManager.beaconChainSlashingFactor(address(staker));
    }

    function _getPrevCumulativeWithdrawals(User staker) internal timewarp returns (uint) {
        return _getCumulativeWithdrawals(staker);
    }

    function _getCumulativeWithdrawals(User staker) internal view returns (uint) {
        return delegationManager.cumulativeWithdrawalsQueued(address(staker));
    }

    function _getPrevTokenBalances(User staker, IERC20[] memory tokens) internal timewarp returns (uint[] memory) {
        return _getTokenBalances(staker, tokens);
    }

    function _getTokenBalances(User staker, IERC20[] memory tokens) internal view returns (uint[] memory) {
        uint[] memory balances = new uint[](tokens.length);

        for (uint i = 0; i < tokens.length; i++) {
            if (tokens[i] == NATIVE_ETH) balances[i] = address(staker).balance;
            else balances[i] = tokens[i].balanceOf(address(staker));
        }

        return balances;
    }

    function _getPrevTotalStrategyShares(IStrategy[] memory strategies) internal timewarp returns (uint[] memory) {
        return _getTotalStrategyShares(strategies);
    }

    function _getTotalStrategyShares(IStrategy[] memory strategies) internal view returns (uint[] memory) {
        uint[] memory shares = new uint[](strategies.length);

        for (uint i = 0; i < strategies.length; i++) {
            if (strategies[i] != BEACONCHAIN_ETH_STRAT) shares[i] = strategies[i].totalShares();
            // BeaconChainETH strategy doesn't keep track of global strategy shares, so we ignore
        }

        return shares;
    }

    function _getDepositScalingFactors(User staker, IStrategy[] memory strategies) internal view returns (uint[] memory) {
        uint[] memory depositScalingFactors = new uint[](strategies.length);
        for (uint i = 0; i < strategies.length; i++) {
            depositScalingFactors[i] = _getDepositScalingFactor(staker, strategies[i]);
        }
        return depositScalingFactors;
    }

    function _getDepositScalingFactor(User staker, IStrategy strategy) internal view returns (uint) {
        return delegationManager.depositScalingFactor(address(staker), strategy);
    }

    function _getPrevDepositScalingFactors(User staker, IStrategy[] memory strategies) internal timewarp returns (uint[] memory) {
        return _getDepositScalingFactors(staker, strategies);
    }

    function _getExpectedDSFUndelegate(User staker) internal view returns (uint expectedDepositScalingFactor) {
        return WAD.divWad(_getBeaconChainSlashingFactor(staker));
    }

    function _getExpectedDSFDeposit(User staker, User operator, IStrategy strategy)
        internal
        view
        returns (uint expectedDepositScalingFactor)
    {
        if (strategy == BEACONCHAIN_ETH_STRAT) {
            return WAD.divWad(allocationManager.getMaxMagnitude(address(operator), strategy).mulWad(_getBeaconChainSlashingFactor(staker)));
        } else {
            return WAD.divWad(allocationManager.getMaxMagnitude(address(operator), strategy));
        }
    }

    function _getExpectedWithdrawableSharesUndelegate(User staker, IStrategy[] memory strategies, uint[] memory shares)
        internal
        view
        returns (uint[] memory)
    {
        uint[] memory expectedWithdrawableShares = new uint[](strategies.length);
        for (uint i = 0; i < strategies.length; i++) {
            if (strategies[i] == BEACONCHAIN_ETH_STRAT) {
                expectedWithdrawableShares[i] =
                    shares[i].mulWad(_getExpectedDSFUndelegate(staker)).mulWad(_getBeaconChainSlashingFactor(staker));
            } else {
                expectedWithdrawableShares[i] = shares[i];
            }
        }
        return expectedWithdrawableShares;
    }

    function _getExpectedDSFsDelegate(User staker, User operator, IStrategy[] memory strategies) internal returns (uint[] memory) {
        uint[] memory expectedDepositScalingFactors = new uint[](strategies.length);
        uint[] memory oldDepositScalingFactors = _getPrevDepositScalingFactors(staker, strategies);
        uint64[] memory maxMagnitudes = _getMaxMagnitudes(operator, strategies);
        for (uint i = 0; i < strategies.length; i++) {
            expectedDepositScalingFactors[i] = oldDepositScalingFactors[i].divWad(maxMagnitudes[i]);
        }
        return expectedDepositScalingFactors;
    }

    function _getExpectedWithdrawableSharesDelegate(User staker, User operator, IStrategy[] memory strategies, uint[] memory depositShares)
        internal
        returns (uint[] memory)
    {
        uint[] memory expectedWithdrawableShares = new uint[](strategies.length);
        uint[] memory expectedDSFs = _getExpectedDSFsDelegate(staker, operator, strategies);
        uint64[] memory maxMagnitudes = _getMaxMagnitudes(operator, strategies);
        for (uint i = 0; i < strategies.length; i++) {
            if (strategies[i] == BEACONCHAIN_ETH_STRAT) {
                expectedWithdrawableShares[i] =
                    depositShares[i].mulWad(expectedDSFs[i]).mulWad(maxMagnitudes[i].mulWad(_getBeaconChainSlashingFactor(staker)));
            } else {
                expectedWithdrawableShares[i] = depositShares[i].mulWad(expectedDSFs[i]).mulWad(maxMagnitudes[i]);
            }
        }
        return expectedWithdrawableShares;
    }

    function _getExpectedWithdrawableSharesDeposit(User staker, User operator, IStrategy strategy, uint depositShares)
        internal
        view
        returns (uint)
    {
        return depositShares.mulWad(_getExpectedDSFDeposit(staker, operator, strategy)).mulWad(_getSlashingFactor(staker, strategy));
    }

    function _getSlashingFactor(User staker, IStrategy strategy) internal view returns (uint) {
        address operator = delegationManager.delegatedTo(address(staker));
        uint64 maxMagnitude = allocationManager.getMaxMagnitudes(operator, strategy.toArray())[0];
        if (strategy == beaconChainETHStrategy) return maxMagnitude.mulWad(eigenPodManager.beaconChainSlashingFactor(address(staker)));
        return maxMagnitude;
    }

    function _getPrevSlashingFactor(User staker, IStrategy strategy) internal timewarp returns (uint) {
        return _getSlashingFactor(staker, strategy);
    }

    function _getSlashingFactors(User staker, IStrategy[] memory strategies) internal view returns (uint[] memory) {
        address operator = delegationManager.delegatedTo(address(staker));
        uint64[] memory maxMagnitudes = allocationManager.getMaxMagnitudes(operator, strategies);
        uint[] memory slashingFactors = new uint[](strategies.length);
        for (uint i = 0; i < strategies.length; i++) {
            if (strategies[i] == beaconChainETHStrategy) {
                slashingFactors[i] = maxMagnitudes[i].mulWad(eigenPodManager.beaconChainSlashingFactor(address(staker)));
            } else {
                slashingFactors[i] = maxMagnitudes[i];
            }
        }
        return slashingFactors;
    }

    function _getPrevSlashingFactors(User staker, IStrategy[] memory strategies) internal timewarp returns (uint[] memory) {
        return _getSlashingFactors(staker, strategies);
    }

    function _getPrevWithdrawableShares(User staker, IStrategy[] memory strategies) internal timewarp returns (uint[] memory) {
        return _getWithdrawableShares(staker, strategies);
    }

    function _getWithdrawableShares(User staker, IStrategy[] memory strategies) internal view returns (uint[] memory withdrawableShares) {
        (withdrawableShares,) = delegationManager.getWithdrawableShares(address(staker), strategies);
    }

    function _getWithdrawableShares(User staker, IStrategy strategy) internal view returns (uint withdrawableShares) {
        (uint[] memory _withdrawableShares,) = delegationManager.getWithdrawableShares(address(staker), strategy.toArray());
        return _withdrawableShares[0];
    }

    /// @dev Assumes that the staker has one withdrawal queued
    function _getWithdrawableSharesAfterCompletion(User staker) internal view returns (uint[] memory withdrawableShares) {
        bytes32 root = delegationManager.getQueuedWithdrawalRoots(address(staker))[0];
        (, withdrawableShares) = delegationManager.getQueuedWithdrawal(root);
    }

    function _getActiveValidatorCount(User staker) internal view returns (uint) {
        EigenPod pod = staker.pod();
        return pod.activeValidatorCount();
    }

    function _getPrevActiveValidatorCount(User staker) internal timewarp returns (uint) {
        return _getActiveValidatorCount(staker);
    }

    function _getValidatorStatuses(User staker, bytes32[] memory pubkeyHashes) internal view returns (VALIDATOR_STATUS[] memory) {
        EigenPod pod = staker.pod();
        VALIDATOR_STATUS[] memory statuses = new VALIDATOR_STATUS[](pubkeyHashes.length);

        for (uint i = 0; i < statuses.length; i++) {
            statuses[i] = pod.validatorStatus(pubkeyHashes[i]);
        }

        return statuses;
    }

    function _getPrevValidatorStatuses(User staker, bytes32[] memory pubkeyHashes) internal timewarp returns (VALIDATOR_STATUS[] memory) {
        return _getValidatorStatuses(staker, pubkeyHashes);
    }

    function _getProofsRemaining(User staker) internal view returns (uint) {
        return staker.pod().currentCheckpoint().proofsRemaining;
    }

    function _getPrevProofsRemaining(User staker) internal timewarp returns (uint) {
        return _getProofsRemaining(staker);
    }

    function _getCheckpointBlockRoot(User staker) internal view returns (bytes32) {
        return staker.pod().currentCheckpoint().beaconBlockRoot;
    }

    function _getPrevCheckpointBlockRoot(User staker) internal timewarp returns (bytes32) {
        return _getCheckpointBlockRoot(staker);
    }

    function _getCheckpointTimestamp(User staker) internal view returns (uint64) {
        EigenPod pod = staker.pod();
        return pod.currentCheckpointTimestamp();
    }

    function _getPrevCheckpointTimestamp(User staker) internal timewarp returns (uint64) {
        return _getCheckpointTimestamp(staker);
    }

    function _getLastCheckpointTimestamp(User staker) internal view returns (uint64) {
        EigenPod pod = staker.pod();
        return pod.lastCheckpointTimestamp();
    }

    function _getPrevLastCheckpointTimestamp(User staker) internal timewarp returns (uint64) {
        return _getLastCheckpointTimestamp(staker);
    }

    function _getWithdrawableRestakedGwei(User staker) internal view returns (uint64) {
        EigenPod pod = staker.pod();
        return pod.withdrawableRestakedExecutionLayerGwei();
    }

    function _getPrevWithdrawableRestakedGwei(User staker) internal timewarp returns (uint64) {
        return _getWithdrawableRestakedGwei(staker);
    }

    function _getCheckpointPodBalanceGwei(User staker) internal view returns (uint64) {
        EigenPod pod = staker.pod();
        return uint64(pod.currentCheckpoint().podBalanceGwei);
    }

    function _getPrevCheckpointPodBalanceGwei(User staker) internal timewarp returns (uint64) {
        return _getCheckpointPodBalanceGwei(staker);
    }

    function _getCheckpointBalanceExited(User staker, uint64 checkpointTimestamp) internal view returns (uint64) {
        EigenPod pod = staker.pod();
        return pod.checkpointBalanceExitedGwei(checkpointTimestamp);
    }

    function _getPrevCheckpointBalanceExited(User staker, uint64 checkpointTimestamp) internal timewarp returns (uint64) {
        return _getCheckpointBalanceExited(staker, checkpointTimestamp);
    }

    function _getQueuedWithdrawals(User staker) internal view returns (Withdrawal[] memory) {
        (Withdrawal[] memory withdrawals,) = delegationManager.getQueuedWithdrawals(address(staker));
        return withdrawals;
    }

    ///
    ///                         EMISSIONS CONTROLLER HELPERS
    ///

    function _getTotalProcessableDistributions() internal view returns (uint) {
        return emissionsController.getTotalProcessableDistributions();
    }

    function _getPrevTotalProcessableDistributions() internal timewarp returns (uint) {
        return _getTotalProcessableDistributions();
    }

    function _getEmissionsControllerEigenBalance() internal view returns (uint) {
        return EIGEN.balanceOf(address(emissionsController));
    }

    function _getPrevEmissionsControllerEigenBalance() internal timewarp returns (uint) {
        return _getEmissionsControllerEigenBalance();
    }

    function _getIncentiveCouncilEigenBalance(address incentiveCouncil) internal view returns (uint) {
        return EIGEN.balanceOf(incentiveCouncil);
    }

    function _getPrevIncentiveCouncilEigenBalance(address incentiveCouncil) internal timewarp returns (uint) {
        return _getIncentiveCouncilEigenBalance(incentiveCouncil);
    }

    function _getTotalWeight() internal view returns (uint16) {
        return emissionsController.totalWeight();
    }

    function _getPrevTotalWeight() internal timewarp returns (uint16) {
        return _getTotalWeight();
    }

    function _getCurrentEpoch() internal view returns (uint) {
        return emissionsController.getCurrentEpoch();
    }

    function _getPrevCurrentEpoch() internal timewarp returns (uint) {
        return _getCurrentEpoch();
    }

    function _getDistribution(uint distributionId) internal view returns (IEmissionsControllerTypes.Distribution memory) {
        return emissionsController.getDistribution(distributionId);
    }

    function _getPrevDistribution(uint distributionId) internal timewarp returns (IEmissionsControllerTypes.Distribution memory) {
        return _getDistribution(distributionId);
    }

    function _getIsButtonPressable() internal view returns (bool) {
        return emissionsController.isButtonPressable();
    }

    function _getPrevIsButtonPressable() internal timewarp returns (bool) {
        return _getIsButtonPressable();
    }

    // ========================================
    // EmissionsController Storage Slot Helpers
    // ========================================
    // These functions use vm.load() to read internal EmissionsController state directly from storage.
    //
    // Storage Layout for EmissionsController (from `forge inspect EmissionsController storageLayout`):
    // - Slot 201: incentiveCouncil (address) + totalWeight (uint16)
    // - Slot 202: _distributions (dynamic array)
    // - Slot 203: _epochs mapping (mapping(uint256 => Epoch))
    //
    // For mappings: keccak256(abi.encode(key, slot))
    // For the Epoch struct at the mapping location:
    //   Solidity packs from lowest-order bytes (right-to-left):
    //   - Byte 0 (rightmost): bool minted (1 byte)
    //   - Bytes 1-8: uint64 totalProcessed (8 bytes)
    //   - Bytes 9-16: uint64 totalAdded (8 bytes)
    //   - Bytes 17-31: unused
    //   All packed into a single 32-byte slot
    // ========================================

    /// @dev Storage slot for _epochs mapping in EmissionsController (slot 203)
    uint private constant EPOCHS_MAPPING_SLOT = 203;

    /// @dev Reads the Epoch struct from storage for a given epoch number
    function _getEpochFromStorage(uint epoch) internal view returns (bool minted, uint64 totalProcessed, uint64 totalAdded) {
        // Calculate storage slot for _epochs[epoch]
        bytes32 slot = keccak256(abi.encode(epoch, EPOCHS_MAPPING_SLOT));

        // Read the packed slot
        bytes32 data = vm.load(address(emissionsController), slot);
        uint rawData = uint(data);

        // Extract fields from packed storage (right-to-left layout)
        // minted: byte 0 (rightmost 8 bits)
        // totalProcessed: bytes 1-8 (next 64 bits, shift right 8 bits)
        // totalAdded: bytes 9-16 (next 64 bits, shift right 72 bits)

        minted = (rawData & 0xFF) != 0;
        totalProcessed = uint64((rawData >> 8) & 0xFFFFFFFFFFFFFFFF);
        totalAdded = uint64((rawData >> 72) & 0xFFFFFFFFFFFFFFFF);

        return (minted, totalProcessed, totalAdded);
    }

    /// @dev Helper to get total number of distributions (both processable and added this epoch)
    /// NOTE: This calculates the length based on EmissionsController logic:
    /// - Before emissions start: totalDistributions = totalProcessable
    /// - After emissions start: totalDistributions = totalProcessable + totalAdded
    function _getTotalDistributions() internal view returns (uint) {
        uint currentEpoch = _getCurrentEpoch();
        if (currentEpoch == type(uint).max) return _getTotalProcessableDistributions();
        // After emissions start: _distributions.length = totalProcessable + totalAdded
        uint totalProcessable = _getTotalProcessableDistributions();
        uint totalAdded = _getEpochTotalAdded(currentEpoch);
        return totalProcessable + totalAdded;
    }

    function _getPrevTotalDistributions() internal timewarp returns (uint) {
        return _getTotalDistributions();
    }

    function _getEpochTotalAdded(uint epoch) internal view returns (uint) {
        (,, uint64 totalAdded) = _getEpochFromStorage(epoch);
        return uint(totalAdded);
    }

    function _getEpochTotalProcessed(uint epoch) internal view returns (uint) {
        (, uint64 totalProcessed,) = _getEpochFromStorage(epoch);
        return uint(totalProcessed);
    }

    function _getPrevEpochTotalProcessed(uint epoch) internal timewarp returns (uint) {
        return _getEpochTotalProcessed(epoch);
    }

    function _getEpochMinted(uint epoch) internal view returns (bool) {
        (bool minted,,) = _getEpochFromStorage(epoch);
        return minted;
    }

    function _getPrevEpochMinted(uint epoch) internal timewarp returns (bool) {
        return _getEpochMinted(epoch);
    }

    /// Assertions

    function assert_Snap_Added_TotalProcessableDistributions(uint added, string memory err) internal {
        uint prev = _getPrevTotalProcessableDistributions();
        uint cur = _getTotalProcessableDistributions();
        assertEq(prev + added, cur, err);
    }

    function assert_Snap_Unchanged_TotalProcessableDistributions(string memory err) internal {
        uint prev = _getPrevTotalProcessableDistributions();
        uint cur = _getTotalProcessableDistributions();
        assertEq(prev, cur, err);
    }

    function assert_Snap_Added_EmissionsController_EigenBalance(uint added, string memory err) internal {
        uint prev = _getPrevEmissionsControllerEigenBalance();
        uint cur = _getEmissionsControllerEigenBalance();
        assertApproxEqAbs(prev + added, cur, 100, err);
    }

    function assert_Snap_Removed_EmissionsController_EigenBalance(uint removed, string memory err) internal {
        uint prev = _getPrevEmissionsControllerEigenBalance();
        uint cur = _getEmissionsControllerEigenBalance();
        assertApproxEqAbs(prev - removed, cur, 100, err);
    }

    function assert_Snap_Unchanged_EmissionsController_EigenBalance(string memory err) internal {
        uint prev = _getPrevEmissionsControllerEigenBalance();
        uint cur = _getEmissionsControllerEigenBalance();
        assertEq(prev, cur, err);
    }

    function assert_Snap_Added_IncentiveCouncil_EigenBalance(address incentiveCouncil, uint added, string memory err) internal {
        uint prev = _getPrevIncentiveCouncilEigenBalance(incentiveCouncil);
        uint cur = _getIncentiveCouncilEigenBalance(incentiveCouncil);
        assertApproxEqAbs(prev + added, cur, 100, err);
    }

    function assert_Snap_Unchanged_IncentiveCouncil_EigenBalance(address incentiveCouncil, string memory err) internal {
        uint prev = _getPrevIncentiveCouncilEigenBalance(incentiveCouncil);
        uint cur = _getIncentiveCouncilEigenBalance(incentiveCouncil);
        assertEq(prev, cur, err);
    }

    function assert_Snap_Added_TotalWeight(uint added, string memory err) internal {
        uint prev = _getPrevTotalWeight();
        uint cur = _getTotalWeight();
        assertEq(prev + added, cur, err);
    }

    function assert_Snap_Updated_TotalWeight(uint64 expected, string memory err) internal {
        uint cur = _getTotalWeight();
        assertEq(cur, expected, err);
    }

    function assert_Snap_Unchanged_TotalWeight(string memory err) internal {
        uint prev = _getPrevTotalWeight();
        uint64 cur = _getTotalWeight();
        assertEq(prev, cur, err);
    }

    function assert_Snap_Created_Distribution(uint distributionId, string memory err) internal {
        uint prevCount = _getPrevTotalProcessableDistributions();
        uint curCount = _getTotalProcessableDistributions();
        assertTrue(curCount > prevCount, err);
        assertTrue(distributionId < curCount, err);
    }

    function assert_Snap_Updated_Distribution(
        uint distributionId,
        IEmissionsControllerTypes.Distribution memory expectedDistribution,
        string memory err
    ) internal {
        IEmissionsControllerTypes.Distribution memory storedDistribution = _getDistribution(distributionId);
        assertEq(uint8(storedDistribution.distributionType), uint8(expectedDistribution.distributionType), err);
        assertEq(storedDistribution.weight, expectedDistribution.weight, err);
        assertEq(storedDistribution.startEpoch, expectedDistribution.startEpoch, err);
        assertEq(storedDistribution.totalEpochs, expectedDistribution.totalEpochs, err);
    }

    function assert_Snap_ButtonPressed(string memory err) internal {
        bool prevPressable = _getPrevIsButtonPressable();
        bool curPressable = _getIsButtonPressable();

        // If button was pressable before, pressing it should either:
        // - Keep it pressable (if there are more distributions to process), or
        // - Make it not pressable (if all distributions processed)
        assertTrue(prevPressable, string.concat(err, ": button should have been pressable before pressing"));
    }

    function assert_Snap_Unchanged_CurrentEpoch(string memory err) internal {
        uint prev = _getPrevCurrentEpoch();
        uint cur = _getCurrentEpoch();
        assertEq(prev, cur, err);
    }

    function assert_Snap_Updated_CurrentEpoch(uint expected, string memory err) internal {
        uint cur = _getCurrentEpoch();
        assertEq(cur, expected, err);
    }

    function assert_Snap_Added_TotalDistributions(uint added, string memory err) internal {
        uint prev = _getPrevTotalDistributions();
        uint cur = _getTotalDistributions();
        assertEq(prev + added, cur, err);
    }

    function assert_Snap_Unchanged_TotalDistributions(string memory err) internal {
        uint prev = _getPrevTotalDistributions();
        uint cur = _getTotalDistributions();
        assertEq(prev, cur, err);
    }

    function assert_Snap_Unchanged_ButtonPressability(string memory err) internal {
        bool prev = _getPrevIsButtonPressable();
        bool cur = _getIsButtonPressable();
        assertEq(prev, cur, err);
    }

    function assert_TotalWeight_LTE_MaxWeight(string memory err) internal view {
        uint16 cur = _getTotalWeight();
        assertTrue(cur <= emissionsController.MAX_TOTAL_WEIGHT(), err);
    }

    function assert_Snap_Updated_EpochTotalProcessed(uint epoch, uint expected, string memory err) internal {
        uint cur = _getEpochTotalProcessed(epoch);
        assertEq(cur, expected, err);
    }

    function assert_Snap_Increased_EpochTotalProcessed(uint epoch, string memory err) internal {
        uint prev = _getPrevEpochTotalProcessed(epoch);
        uint cur = _getEpochTotalProcessed(epoch);
        assertTrue(cur > prev, err);
    }

    function assert_Snap_EpochMinted(uint epoch, bool expected, string memory err) internal {
        bool cur = _getEpochMinted(epoch);
        assertEq(cur, expected, err);
    }

    function assert_Distribution_StoredCorrectly(
        uint distributionId,
        IEmissionsControllerTypes.Distribution memory expected,
        string memory err
    ) internal view {
        IEmissionsControllerTypes.Distribution memory stored = _getDistribution(distributionId);
        assertEq(uint8(stored.distributionType), uint8(expected.distributionType), string.concat(err, ": distributionType"));
        assertEq(stored.weight, expected.weight, string.concat(err, ": weight"));
        assertEq(stored.startEpoch, expected.startEpoch, string.concat(err, ": startEpoch"));
        assertEq(stored.totalEpochs, expected.totalEpochs, string.concat(err, ": totalEpochs"));
        assertEq(stored.operatorSet.avs, expected.operatorSet.avs, string.concat(err, ": operatorSet.avs"));
        assertEq(stored.operatorSet.id, expected.operatorSet.id, string.concat(err, ": operatorSet.operatorSetId"));
        assertEq(
            stored.strategiesAndMultipliers.length,
            expected.strategiesAndMultipliers.length,
            string.concat(err, ": strategiesAndMultipliers.length")
        );
    }

    function assert_Distributions_Match_Expected(
        uint[] memory distributionIds,
        IEmissionsControllerTypes.Distribution[] memory expectedDistributions,
        string memory err
    ) internal view {
        assertEq(distributionIds.length, expectedDistributions.length, string.concat(err, ": array length mismatch"));
        for (uint i = 0; i < distributionIds.length; ++i) {
            assert_Distribution_StoredCorrectly(
                distributionIds[i], expectedDistributions[i], string.concat(err, ": dist[", vm.toString(i), "]")
            );
        }
    }
}