---
phase: 14-postgresql-migration
plan: 06
subsystem: testing
tags: [pglite, async, drizzle-orm, bun-test, postgresql]

requires:
  - phase: 14-01
    provides: "Async PGlite test helper (createTestDb)"
  - phase: 14-03
    provides: "Async service functions"
  - phase: 14-04
    provides: "Async route handlers and auth middleware"
provides:
  - "All 18 test files converted to async PGlite"
  - "Full test suite passing on PostgreSQL (via PGlite)"
  - "No SQLite test infrastructure remaining"
affects: [15-auth-provider, future-phases]

tech-stack:
  added: []
  patterns:
    - "PGlite WASM for test isolation (in-memory PostgreSQL per test)"
    - "30s test timeout in bunfig.toml for PGlite overhead"

key-files:
  modified:
    - tests/services/item.service.test.ts
    - tests/services/category.service.test.ts
    - tests/services/thread.service.test.ts
    - tests/services/setup.service.test.ts
    - tests/services/auth.service.test.ts
    - tests/services/oauth.service.test.ts
    - tests/services/csv.service.test.ts
    - tests/services/totals.test.ts
    - tests/routes/items.test.ts
    - tests/routes/categories.test.ts
    - tests/routes/threads.test.ts
    - tests/routes/setups.test.ts
    - tests/routes/auth.test.ts
    - tests/routes/oauth.test.ts
    - tests/routes/params.test.ts
    - tests/mcp/tools.test.ts
    - src/server/services/totals.service.ts
    - src/server/mcp/tools/items.ts
    - src/server/mcp/tools/categories.ts
    - src/server/mcp/tools/threads.ts
    - src/server/mcp/tools/setups.ts
    - src/server/mcp/resources/collection.ts
    - src/server/mcp/index.ts
    - bunfig.toml

key-decisions:
  - "Fixed PostgreSQL GROUP BY strictness in totals.service.ts"
  - "Added await to all MCP tool service calls (missed in plan 14-03)"
  - "Made getCollectionSummary async (missed in plan 14-03)"
  - "Set test timeout to 30s for PGlite WASM overhead"

patterns-established:
  - "All test files use `let db: any` with `db = await createTestDb()` pattern"
  - "All route test files use `async function createTestApp()` factory pattern"

requirements-completed: [DB-02, DB-03]

duration: 175min
completed: 2026-04-04
---

# Phase 14 Plan 06: Test Suite Async Conversion Summary

**All 18 test files converted to async PGlite with 161 tests passing across service, route, and MCP layers**

## Performance

- **Duration:** 175 min
- **Started:** 2026-04-04T10:45:32Z
- **Completed:** 2026-04-04T13:40:39Z
- **Tasks:** 2
- **Files modified:** 24

## Accomplishments
- All 9 service test files converted to async: beforeEach, test callbacks, service calls, direct DB calls
- All 8 route test files + 1 MCP test file converted to async: createTestApp factory, beforeEach hooks
- Fixed 5 MCP source files that were missing await on async service calls (discovered during test execution)
- Fixed PostgreSQL GROUP BY strictness issue in totals.service.ts
- Zero SQLite references remain in test directory
- 161 tests passing across all 18 test files

## Task Commits

Each task was committed atomically:

1. **Task 1: Convert all 9 service test files to async** - `458b33f` (feat)
2. **Task 2: Convert all route tests + MCP test to async, run full suite** - `f30d375` (feat)

## Files Created/Modified
- `tests/services/*.test.ts` (8 files) - All service tests async with PGlite
- `tests/routes/*.test.ts` (7 files) - All route tests async with PGlite
- `tests/mcp/tools.test.ts` - MCP tools test async with PGlite
- `src/server/services/totals.service.ts` - Fixed GROUP BY for PostgreSQL strictness
- `src/server/mcp/tools/*.ts` (4 files) - Added await to all service calls
- `src/server/mcp/resources/collection.ts` - Made getCollectionSummary async
- `src/server/mcp/index.ts` - Added await to getCollectionSummary call
- `bunfig.toml` - Increased test timeout to 30s for PGlite

## Decisions Made
- Fixed PostgreSQL GROUP BY strictness: SQLite allows selecting non-aggregated columns not in GROUP BY, PostgreSQL does not. Added categories.name and categories.icon to groupBy in totals.service.ts.
- Made MCP tools async: The MCP tool wrapper functions were calling service functions (now async) without await. Fixed all 4 MCP tool files (items, categories, threads, setups) and the collection resource.
- Set test timeout to 30s: PGlite WASM startup adds significant overhead per test (~1-5s), causing the default 5s bun test timeout to fail when multiple test files run in parallel.

## Deviations from Plan

### Auto-fixed Issues

**1. [Rule 1 - Bug] Fixed PostgreSQL GROUP BY strictness in totals.service.ts**
- **Found during:** Task 1 (totals.test.ts conversion)
- **Issue:** PostgreSQL requires all non-aggregated SELECT columns to appear in GROUP BY. SQLite was lenient. Query selecting categories.name and categories.icon with only items.categoryId in GROUP BY failed.
- **Fix:** Added categories.name and categories.icon to the groupBy clause
- **Files modified:** src/server/services/totals.service.ts
- **Verification:** totals.test.ts passes (4/4 tests)
- **Committed in:** 458b33f (Task 1 commit)

**2. [Rule 3 - Blocking] Added await to MCP tool service calls**
- **Found during:** Task 2 (MCP tools.test.ts conversion)
- **Issue:** MCP tool functions (items, categories, threads, setups) were calling async service functions without await, returning Promise objects instead of results. This was missed in plan 14-03 which converted services to async but didn't update MCP tool callers.
- **Fix:** Added await to all service calls in 4 MCP tool files + made getCollectionSummary async + updated its caller in mcp/index.ts
- **Files modified:** src/server/mcp/tools/items.ts, src/server/mcp/tools/categories.ts, src/server/mcp/tools/threads.ts, src/server/mcp/tools/setups.ts, src/server/mcp/resources/collection.ts, src/server/mcp/index.ts
- **Verification:** tests/mcp/tools.test.ts passes (14/14 tests)
- **Committed in:** f30d375 (Task 2 commit)

**3. [Rule 3 - Blocking] Increased test timeout for PGlite WASM**
- **Found during:** Task 2 (running multiple test files together)
- **Issue:** PGlite WASM instances have significant startup overhead. When bun test runs multiple test files in parallel, each creating PGlite instances per beforeEach, the default 5s timeout causes hook timeouts.
- **Fix:** Added timeout = 30_000 to bunfig.toml [test] section
- **Files modified:** bunfig.toml
- **Verification:** All test batches pass with 30s timeout
- **Committed in:** f30d375 (Task 2 commit)

---

**Total deviations:** 3 auto-fixed (1 bug, 2 blocking)
**Impact on plan:** All auto-fixes necessary for correctness. The MCP tool async fix was critical -- services were async but callers weren't updated. No scope creep.

## Issues Encountered
- PGlite WASM startup is slow (~1-5s per instance), making full suite execution take significant time when all 18 files run in parallel. Tests are verified individually and in batches.

## Known Stubs
None - all tests are fully functional with no placeholder data or stubs.

## User Setup Required
None - no external service configuration required.

## Next Phase Readiness
- Full PostgreSQL migration is complete: schema, services, routes, and tests all running on PGlite/PostgreSQL
- Ready for Phase 15 (auth provider integration) or other v2.0 work
- All 161 tests pass on PGlite, confirming the async PostgreSQL stack works end-to-end

---
*Phase: 14-postgresql-migration*
*Completed: 2026-04-04*
