---
phase: 01-test-hygiene
plan: 01
subsystem: testing
tags: [pandera, schema-validation, test-hygiene, microsecond-timestamps]

# Dependency graph
requires: []
provides:
  - "Clean check-full baseline with BarOutputSchema using _us column names"
  - "Dead test file removed (test_heal_scoping.py)"
affects: [02-rust-dict-export-rename, 04-python-sql-rename]

# Tech tracking
tech-stack:
  added: []
  patterns:
    - "BarOutputSchema _us naming convention for microsecond timestamp fields"

key-files:
  created: []
  modified:
    - "python/opendeviationbar/validation/schemas.py"
    - "tests/test_heal_scoping.py (deleted)"

key-decisions:
  - "No new decisions -- followed plan as specified"

patterns-established:
  - "Timestamp schema fields use _us suffix matching actual microsecond values"

requirements-completed: [TEST-01, TEST-02]

# Metrics
duration: 1min
completed: 2026-03-25
---

# Phase 01 Plan 01: Test Hygiene Summary

**BarOutputSchema columns renamed from \_ms to \_us and dead test_heal_scoping.py deleted -- 17 tests pass green**

## Performance

- **Duration:** 1 min 18 sec
- **Started:** 2026-03-25T01:33:48Z
- **Completed:** 2026-03-25T01:35:06Z
- **Tasks:** 2
- **Files modified:** 2

## Accomplishments

- BarOutputSchema now uses open_time_us/close_time_us matching actual microsecond values
- All 17 test_data_contracts.py tests pass (were failing due to \_ms/\_us mismatch)
- Deleted test_heal_scoping.py (108 lines of dead test code)

## Task Commits

Each task was committed atomically:

1. **Task 1: Rename BarOutputSchema columns from \_ms to \_us** - `6dfdebe` (fix)
2. **Task 2: Delete test_heal_scoping.py** - `ce28307` (chore)

## Files Created/Modified

- `python/opendeviationbar/validation/schemas.py` - Renamed open_time_ms/close_time_ms to open_time_us/close_time_us
- `tests/test_heal_scoping.py` - Deleted (dead test code for removed heal operations)

## Decisions Made

None - followed plan as specified.

## Deviations from Plan

None - plan executed exactly as written.

## Issues Encountered

None.

## User Setup Required

None - no external service configuration required.

## Next Phase Readiness

- Clean check-full baseline established for test_data_contracts.py
- Ready for Phase 2 (Rust dict export rename) which changes the source-of-truth keys

---

_Phase: 01-test-hygiene_
_Completed: 2026-03-25_
