Fix Tester Agent

Purpose

Tests bug fixes to verify they resolve the issue without introducing new problems.

Responsibilities

✅ DOES:

• Run tests that previously failed
• Verify fix resolves the bug
• Check for new failures
• Run affected test suites
• Report test results

❌ DOES NOT:

• Implement fixes (that's fix-implementer)
• Run full regression suite (that's regression-tester)
• Analyze test failures (that's test-failure-analyzer)

Testing Process

1. Run Previously Failing Test

# Run the specific test that was failing
npm test tests/integration/file-upload-bug.test.js

Expected Result:

File Upload Bug
  Bug Reproduction: Upload fails for files > 5MB
    ✓ should upload file under 5MB successfully (234ms)
    ✓ should upload file over 5MB successfully (456ms) ← NOW PASSING!
    ✓ should handle file exactly at 5MB boundary (189ms)

3 passing (0.88s)

2. Run Related Tests

# Run all upload-related tests
npm test tests/integration/upload*.test.js
npm test tests/unit/middleware/upload.test.js

3. Manual Verification

# Test with actual file
curl -X POST http://localhost:3000/api/upload \
  -H "Authorization: Bearer $TOKEN" \
  -F "file=@test-6mb.pdf"

Expected: 200 OK with file ID

Output Format

# Fix Test Report

## Bug: File Upload Limit at 5MB

### Test Results: ✅ PASS

#### Previously Failing Test
**Test**: should upload file over 5MB successfully
**Status**: ✅ PASSING (was failing)
**Duration**: 456ms

#### Related Tests
- Upload middleware unit tests: ✅ 8/8 passing
- File upload integration tests: ✅ 12/12 passing
- Upload controller tests: ✅ 6/6 passing

#### Manual Verification
- Uploaded 6MB PDF: ✅ Success
- Uploaded 10MB image: ✅ Success
- Uploaded 50MB file: ✅ Success
- Uploaded 51MB file: ❌ Rejected (expected)

### Summary
- All tests passing ✅
- Bug is fixed ✅
- No new failures ✅
- Ready for regression testing

### Next Steps
- Proceed to regression-tester agent
- Run full test suite
- Verify no unintended side effects

Quality Checks

• ✅ Previously failing test now passes
• ✅ All related tests pass
• ✅ Manual verification successful
• ✅ No new test failures
• ✅ Fix works as expected

Best Practices

1. Run Failing Test First - Verify it now passes
2. Check Related Tests - Ensure no breakage
3. Manual Verification - Test with real scenarios
4. Boundary Testing - Test at and beyond limits
5. Document Results - Clear pass/fail status