add tests for sort the borrowers

CHANGELOG.md

@@ -60,7 +60,7 @@ Ref: https://keepachangelog.com/en/1.0.0/
 - [2494](https://github.com/umee-network/umee/pull/2494) Use go 1.22
 - [2495](https://github.com/umee-network/umee/pull/2495) (util) `KeyWithUint64` and `KeyWithUint32` helper functions for db keys.
 - [2504](https://github.com/umee-network/umee/pull/2504) bump `wasmd` to v0.45.0.
-- [2562](https://github.com/umee-network/umee/pull/2562) (x/leverage): Improved the existing inspect account response by adding `base_denom` and `base_amount`.
+- [2562](https://github.com/umee-network/umee/pull/2562) (x/leverage proto): Add `base_denom` and `base_amount` to `QueryInspectResponse`.
 
 ### Bug Fixes
 

x/leverage/keeper/grpc_query_test.go

@@ -304,6 +304,12 @@ func (s *IntegrationTestSuite) TestQuerier_Inspect() {
 		},
 	}
 	require.Equal(expected, *resp)
+
+	req := &types.QueryInspect{}
+	req.Symbol = "UMEE"
+	resp, err = s.queryClient.Inspect(ctx, req)
+	require.NoError(err)
+	require.Equal(expected, *resp)
 }
 
 func (s *IntegrationTestSuite) TestQuerier_LiquidationTargets() {

x/leverage/keeper/inspector.go

@@ -128,6 +128,10 @@ func (q Querier) Inspect(
 					break
 				}
 			}
+
+			if a.IsNil() || b.IsNil() {
+				return false
+			}
 			return a.GTE(b)
 		}
 		// otherwise, sorts by borrowed value (descending)