---
phase: 27
plan: 02
subsystem: grep-blame-flags
tags: [grep, blame, annotate, e2e-tests, flag-coverage]
completed: 2026-01-22
duration: 35m

dependency-graph:
  requires: [27-01-implementation]
  provides: [grep-flag-tests, blame-flag-tests]
  affects: [28-next-phase]

tech-stack:
  added: []
  patterns: [pytest-fixtures, e2e-testing, warning-verification]

key-files:
  created:
    - tests/test_grep_flags.py
    - tests/test_blame_flags.py
  modified:
    - cmd_grep.py

decisions:
  - id: GREP-Q-UNSUPPORTED
    choice: "Mark -q/--quiet as unsupported with warning"
    reason: "sl grep does not support quiet mode (no -q flag)"

metrics:
  requirements-validated: 21
  tests-added: 38
  lines-added: 287
---

# Phase 27 Plan 02: Grep and Blame Flags Tests Summary

E2E tests validating all 21 grep and blame flag requirements with bug fix for quiet mode

## Summary

Created comprehensive E2E tests for all grep (GREP-01 through GREP-14) and blame (BLAM-01 through BLAM-07) flag requirements. During test development, discovered that sl grep does not support the -q/--quiet flag, so updated cmd_grep.py to warn instead of passing through (bug fix).

**Tests created:**
- 26 grep flag tests covering pass-through, context lines, translation, and unsupported flags
- 12 blame flag tests covering pass-through, translation, and unsupported flags
- Full test suite (429 tests) passes with no regressions

## Tasks Completed

| Task | Name | Commit | Files Created/Modified |
|------|------|--------|------------------------|
| 1 | Create Grep Flag Tests | 58f3a9e | tests/test_grep_flags.py, cmd_grep.py |
| 2 | Create Blame Flag Tests | 8220dea | tests/test_blame_flags.py |
| 3 | Run Full Test Suite | (verification) | 429 tests pass |

## Implementation Details

### tests/test_grep_flags.py (179 lines)

**TestGrepPassThrough (10 tests):**
- GREP-01: -n/--line-number (2 tests)
- GREP-02: -i/--ignore-case (2 tests)
- GREP-03: -l/--files-with-matches (2 tests)
- GREP-05: -w/--word-regexp (2 tests)
- GREP-14: -F/--fixed-strings (2 tests)

**TestGrepContextLines (6 tests):**
- GREP-07: -A context with attached values (2 tests)
- GREP-08: -B context with attached values (2 tests)
- GREP-09: -C context with attached values (2 tests)

**TestGrepTranslation (2 tests):**
- GREP-06: -v/--invert-match translates to -V (2 tests)

**TestGrepUnsupported (8 tests):**
- GREP-04: -c/--count warning (2 tests)
- GREP-10: -h warning (1 test)
- GREP-11: -H no-op (1 test)
- GREP-12: -o/--only-matching warning (2 tests)
- GREP-13: -q/--quiet warning (2 tests)

### tests/test_blame_flags.py (102 lines)

**TestBlamePassThrough (4 tests):**
- BLAM-01: -w/--ignore-all-space (2 tests)
- BLAM-07: -n/--show-number (2 tests)

**TestBlameTranslation (1 test):**
- BLAM-02: -b translates to --ignore-space-change (1 test)

**TestBlameUnsupported (7 tests):**
- BLAM-03: -L line range warning (2 tests)
- BLAM-04: -e/--show-email warning (2 tests)
- BLAM-05: -p/--porcelain warning (2 tests)
- BLAM-06: -l warning (1 test)

## Decisions Made

| Decision | Choice | Rationale |
|----------|--------|-----------|
| GREP-Q-UNSUPPORTED | Warn instead of pass-through for -q | sl grep lacks quiet mode support |

## Deviations from Plan

### Auto-fixed Issues

**1. [Rule 1 - Bug] Fixed -q/--quiet flag handling**

- **Found during:** Task 1 (grep flag tests)
- **Issue:** cmd_grep.py was passing -q through to sl grep, but sl grep doesn't support this flag (no quiet mode)
- **Fix:** Changed to warn about unsupported flag instead of passing through
- **Files modified:** cmd_grep.py
- **Commit:** 58f3a9e

## Verification Results

1. **pytest tests/test_grep_flags.py -v:** 26 passed
2. **pytest tests/test_blame_flags.py -v:** 12 passed
3. **pytest tests/test_grep.py tests/test_grep_flags.py tests/test_blame.py tests/test_blame_flags.py -v:** 45 passed
4. **pytest -v (full suite):** 429 passed, 8 warnings (pytest mark warnings only)

## Files Changed

| File | Lines | Change Type |
|------|-------|-------------|
| tests/test_grep_flags.py | 179 | Created (26 tests) |
| tests/test_blame_flags.py | 102 | Created (12 tests) |
| cmd_grep.py | 6 | Fixed -q flag handling |

## Next Phase Readiness

**Phase 28:** Ready for next phase planning
- All grep and blame flag requirements have full test coverage
- Both implementation (27-01) and tests (27-02) complete
- No blockers or outstanding issues
