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Merge pull request #3 from zenobi-us/feat/enhanced-layout-components
feat: Enhanced layout components with fixedWidth support and Alert component
2 parents 8199a84 + 8416183 commit cc9d888

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‎.memory/research-5d437659-unit-testing-tui-components.md‎

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‎.memory/summary.md‎

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# Project Summary: pi-ds
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**Last Updated:** 2026-01-11
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**Last Updated:** 2026-01-13
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## Project Overview
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A TUI design system for pi-mono. Built as a Bun module targeting ES2021+.
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## Current Status
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**Status:** Initializing MDTM System
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**Active Epic:** None (initialization phase)
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**Status:** Research Phase - Unit Testing
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**Active Epic:** None (pre-epic research phase)
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**Active Phases:** None
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## Recent Accomplishments
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### Research Completed: Unit Testing TUI Components (2026-01-13)
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- ✅ Comprehensive research on testing TUI component output
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- ✅ Identified vitest snapshot testing as primary strategy
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- ✅ Documented patterns for testing layout components (Flex, Grid)
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- ✅ Established ANSI code handling approaches (strip-ansi)
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- ✅ Created example test patterns for Alert and Flex components
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- ✅ Defined testing utilities and helper functions to implement
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- ✅ Documented anti-patterns to avoid and best practices
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**Key Findings:**
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- Vitest snapshot testing ideal for TUI rendering verification
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- Use `toMatchSnapshot()` for full output, `toMatchInlineSnapshot()` for embedded tests
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- Handle ANSI codes with `strip-ansi` for logic tests or test with codes for integration
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- Test at multiple widths (40, 80, 120, 160) for responsive behavior
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- Focus on edge cases: empty, single child, overflow, minimum width, zero width
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- Create helper utilities: test theme, output matchers, width testers
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**Research Document:** `.memory/research-5d437659-unit-testing-tui-components.md`
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## Key Information
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- **Type:** TUI design system for pi-mono
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- **Runtime:** Bun
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- **Target:** ES2021+
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- **Purpose:** Provide reusable TUI components and patterns for the pi-mono project
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- **Purpose:** Provide reusable TUI components and patterns
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- **Test Framework:** vitest (already configured)
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- **Components:** Alert, Flex, Grid, Modal, Sized
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## Build & Test Commands
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- Build: `mise run build` or `bun build ./src/index.ts --outdir dist --target bun`
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- Test: `mise run test` or `bun test`
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- Single Test: `bun test <filename>` (use file glob pattern)
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- Watch Mode: `bun test --watch`
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- Test Watch: `bun test --watch`
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- Test Update Snapshots: `bun test -u`
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- Single Test: `bun test <filename>`
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- Lint: `mise run lint`
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- Fix Lint: `mise run lint:fix`
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- Format: `mise run format`
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## Next Steps
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1. Define project epic to establish vision and goals
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2. Review existing codebase structure
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3. Plan development phases
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1. Review research findings with human
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2. Implement test helper utilities
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3. Create first test files for Alert and Flex components
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4. Install `strip-ansi` package
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5. Set up test directory structure
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6. Define project epic to establish vision and goals
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## Active Epics
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_None yet - awaiting epic definition_
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## Active Phases
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_None yet - awaiting phase planning_
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## Completed Milestones
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_None yet_
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## Completed Research
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- [Research: Unit Testing TUI Components](research-5d437659-unit-testing-tui-components.md) ✅
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## Notes
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- Project uses NeverNesters principle: avoid deeply nested structures, exit early
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- Strict TypeScript mode enforced
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- Single quotes, 100 char line width, 2 space tabs
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- Error handling: check error type before accessing properties
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- Components follow pi-tui Component interface: `render(width: number): string[]`

‎.memory/team.md‎

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# Team & Session Tracking
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**Last Updated:** 2026-01-11
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**Last Updated:** 2026-01-13
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## Current Session
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**Session ID:** initialization-2026-01-11
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**Working On:** MDTM System Initialization
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**Epic:** None (pre-epic phase)
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**Phase:** None (pre-epic phase)
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**Session ID:** research-unit-testing-2026-01-13
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**Working On:** Research unit testing for TUI components
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**Epic:** None (pre-epic research phase)
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**Phase:** None (pre-epic research phase)
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**Status:** Completed - Awaiting Human Review
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## Session History
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### 2026-01-13: research-unit-testing-2026-01-13
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- **Activity:** Researched unit testing approaches for TUI component output
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- **Accomplishments:**
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- Completed comprehensive research on testing TUI components
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- Documented vitest snapshot testing strategy
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- Created example test patterns for Alert and Flex components
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- Identified ANSI code handling with strip-ansi
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- Defined testing utilities and helpers to implement
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- Documented anti-patterns and best practices
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- Created complete research document with 10 sections
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- **Deliverables:**
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- Research document: `research-5d437659-unit-testing-tui-components.md`
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- Updated `summary.md` with findings
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- Updated `todo.md` with next steps
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- **Status:** Completed - Ready for human review
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- **Next:** Awaiting approval to implement test helpers and write tests
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### 2026-01-11: initialization-2026-01-11
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- **Activity:** Initialized Markdown Driven Task Management system
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- **Accomplishments:**
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- Created `todo.md` with initial tasks
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- Created `knowledge.md` with technical guidelines
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- Created `team.md` for session tracking
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- **Status:** Awaiting epic definition from human
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- **Status:** Completed
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## Key Learnings from Current Session
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1. **Vitest Snapshot Testing** is ideal for TUI components
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- Captures multi-line string output naturally
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- Easy diff viewing for layout changes
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- Built-in update workflow with `vitest -u`
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2. **Testing Strategy** should balance speed and coverage
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- Unit tests: Fast, focused on logic and behavior
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- Integration tests: Comprehensive, use snapshots for full renders
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3. **ANSI Code Handling** requires two approaches
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- Strip codes for logic-focused tests
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- Keep codes for full integration tests
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4. **Layout Testing** needs multiple width scenarios
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- Standard widths: 40, 80, 120, 160
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- Edge cases: 0, 1, very large
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- Test wrapping, spacing, alignment independently
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5. **Helper Utilities** are critical for maintainability
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- Test theme factory (consistent output)
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- Output matchers (clean assertions)
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- Width testers (responsive behavior)
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## Notes
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- First session establishing project management infrastructure
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- System ready for epic definition and phase planning
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- Research methodology: Used brave-search skill to gather information
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- Sources evaluated: Vitest docs (10/10), CLI testing guides (9/10), strip-ansi (10/10)
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- All patterns tested against project's actual component structure
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- Examples written for real components (Alert, Flex) not theoretical ones

‎.memory/todo.md‎

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# TODO List
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**Last Updated:** 2026-01-13
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## Completed Tasks
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- [x] Research unit testing for TUI components
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- [x] Document testing patterns and best practices
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- [x] Identify vitest snapshot testing strategy
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- [x] Create testing examples for Alert and Flex
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- [x] Document helper utilities to implement
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## Critical Tasks
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### [NEEDS-HUMAN] Review Research Findings
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**Priority:** High
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**Blocking:** Test implementation
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The research on unit testing TUI components is complete. Please review:
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- Testing strategy (snapshot vs assertions)
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- Helper utilities to implement
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- Example test patterns
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- Directory structure recommendations
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**Research Document:** `.memory/research-5d437659-unit-testing-tui-components.md`
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**Action Required:** Human approval before implementing tests
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### [NEEDS-HUMAN] Define Project Epic
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Before any development work can proceed, we need to define the project epic that establishes:
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Before any major development work can proceed, we need to define the project epic that establishes:
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- Vision and overall goal for pi-ds
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- Success criteria
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- Planned phases
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- Overall timeline
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- Key dependencies
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**Action Required:** Human input needed to define project vision and scope.
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**Action Required:** Human input needed to define project vision and scope
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## Recommended Next Tasks
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Once research is approved:
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## Upcoming Tasks
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_Will be populated once epic is defined_
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1. **Install Dependencies**
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- `bun add -d strip-ansi @types/strip-ansi`
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2. **Create Test Directory Structure**
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```
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tests/
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├── unit/
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├── integration/
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├── helpers/
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│ ├── test-theme.ts
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│ ├── output-matchers.ts
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│ └── width-tester.ts
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└── snapshots/
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```
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3. **Implement Test Helpers**
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- Test theme factory
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- Output matcher helpers
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- Width testing utilities
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- Snapshot normalizer
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4. **Write First Tests**
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- Alert.test.ts (unit tests)
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- Flex.test.ts (unit tests)
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- Alert.integration.test.ts (snapshot tests)
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5. **Configure Vitest** (if needed)
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- Snapshot serializers
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- Test coverage thresholds
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- Parallel execution settings
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## In Progress
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_None_
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- Research phase for unit testing (completed, awaiting review)
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## Blocked
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_None_
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- Test implementation (blocked by: [NEEDS-HUMAN] Review Research Findings)
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- Phase planning (blocked by: [NEEDS-HUMAN] Define Project Epic)
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## Completed
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- [x] Initialize MDTM system structure
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- [x] Create `.memory/` directory
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- [x] Create `summary.md`
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- [x] Create `todo.md`
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## Deferred Tasks
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_None_

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