New Tests for Recent Work

Review recent changes and add missing test coverage where it matters.

Instructions

Step 1: Identify Recent Changes

Run git diff HEAD~1 (or git diff main...HEAD if on a branch) to find what changed. If no git changes, ask the user which files to cover.

Focus on:

• New functions, methods, or components
• Changed behavior in existing code
• New API endpoints or routes
• Modified business logic

Step 2: Audit Existing Coverage

For each changed file, check if corresponding tests exist:

• src/foo.ts → look for src/foo.test.ts, tests/foo.test.ts, __tests__/foo.test.ts
• Follow the project's test file convention

Classify each changed function/component:

Step 3: Prioritize by Risk

Don't test everything — test what matters. Prioritize:

1. Complex logic — conditionals, loops, state machines, calculations
2. Error paths — what happens when things fail
3. Data transformations — parsing, formatting, mapping
4. Integration boundaries — API calls, database queries, external services
5. User-facing behavior — things that break the experience if wrong

Skip:

• Simple getters/setters
• Pure pass-through functions
• Framework boilerplate
• Code that's already well-covered

Step 4: Write Tests

Follow the project's existing test patterns (framework, assertion style, file structure, mocking approach). Read 1-2 existing test files first to match conventions.

For each test:

• Name describes behavior, not implementation: "returns empty array when no results found" not "test getResults"
• Arrange-Act-Assert structure
• One behavior per test — if a test name has "and", split it
• Real edge cases: empty input, null/undefined, boundary values, concurrent access, error responses

Step 5: Verify

Run the new tests to ensure they pass. If any fail, that's a potential bug — flag it rather than deleting the test.

Step 6: Report

## New Test Coverage

**Files analyzed:** [count]
**Tests added:** [count]
**Potential bugs found:** [count, if any]

### Added
- `[test file]`: [what behaviors are now covered]

### Skipped (adequate coverage)
- `[file]`: already covered by [test file]

### Potential Bugs
- `[test name]`: expected [X] but got [Y] — [file:line]