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nexus/.planning/phases/21-chat-foundation/21-00-SUMMARY.md

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phase plan subsystem tags requires provides affects tech-stack key-files key-decisions patterns-established requirements-completed duration completed
21-chat-foundation 00 testing
vitest
typescript
tdd
test-stubs
chat
server
ui
chat-service.test.ts with 22 it.todo stubs (chatService CRUD, addMessage, listMessages)
chat-routes.test.ts with 11 it.todo stubs (all conversation and message endpoints)
ChatMarkdownMessage.test.tsx with 7 it.todo stubs (CHAT-02 markdown, CHAT-03 code blocks)
ChatInput.test.tsx with 6 it.todo stubs (INPUT-07 keyboard shortcuts, auto-resize, submit state)
21-01
21-02
21-03
21-04
21-05
added patterns
it.todo() for Wave 0 test scaffolding — vitest marks todos as skipped (exit 0)
// @vitest-environment node pragma for UI tests that do not need jsdom
created modified
server/src/__tests__/chat-service.test.ts
server/src/__tests__/chat-routes.test.ts
ui/src/components/ChatMarkdownMessage.test.tsx
ui/src/components/ChatInput.test.tsx
Used it.todo() (not it.skip()) so vitest marks stubs as todo rather than skipped — no false positives
Minimal imports (only describe/it from vitest) — no service mocks needed until Plans 01-05 wire them up
Wave 0 stub pattern: describe/it.todo blocks only, no assertions, vitest exits 0
Server test stubs: no createApp/supertest until Plan 01 fills them in
UI test stubs: @vitest-environment node pragma following MarkdownBody.test.tsx reference
HIST-01
CHAT-02
CHAT-03
CHAT-04
CHAT-05
CHAT-06
INPUT-07
2min 2026-04-01

Phase 21 Plan 00: Chat Foundation — Test Stubs Summary

Four vitest test stub files (46 it.todo cases) establishing Wave 0 scaffolds for chat service, routes, markdown rendering, and keyboard input

Performance

  • Duration: ~2 min
  • Started: 2026-04-01T16:35:54Z
  • Completed: 2026-04-01T16:37:57Z
  • Tasks: 2
  • Files modified: 4

Accomplishments

  • Created server stub chat-service.test.ts with 22 it.todo cases covering all chatService methods (createConversation, listConversations, getConversation, updateConversation, softDeleteConversation, addMessage, listMessages)
  • Created server stub chat-routes.test.ts with 11 it.todo cases covering all chatRoutes endpoints (POST/GET conversations, PATCH/DELETE conversation, POST/GET messages)
  • Created UI stub ChatMarkdownMessage.test.tsx with 7 it.todo cases covering CHAT-02 markdown rendering and CHAT-03 code block features
  • Created UI stub ChatInput.test.tsx with 6 it.todo cases covering INPUT-07 keyboard shortcuts, auto-resize, and submit state
  • All 4 files run via vitest with exit 0 (46 todos, 0 failures)

Task Commits

Each task was committed atomically:

  1. Task 1: Create server-side test stubs (chat-service + chat-routes) - 9a8c714e (test)
  2. Task 2: Create UI test stubs (ChatMarkdownMessage + ChatInput) - ebb74914 (test)

Plan metadata: (docs commit — see below)

Files Created/Modified

  • server/src/__tests__/chat-service.test.ts - 22 it.todo stubs for chatService (HIST-01, CHAT-04, CHAT-05, CHAT-06)
  • server/src/__tests__/chat-routes.test.ts - 11 it.todo stubs for chatRoutes endpoints
  • ui/src/components/ChatMarkdownMessage.test.tsx - 7 it.todo stubs for markdown rendering (CHAT-02, CHAT-03)
  • ui/src/components/ChatInput.test.tsx - 6 it.todo stubs for keyboard shortcuts (INPUT-07)

Decisions Made

  • Used it.todo() rather than it.skip() — vitest semantically distinguishes todos from skipped tests; this accurately represents "not yet implemented" vs "intentionally disabled"
  • Minimal imports (only describe/it from vitest) until Plans 01-05 wire in actual implementations and mocks
  • No expect import since todo tests never execute assertions

Deviations from Plan

None - plan executed exactly as written.

Issues Encountered

None — vitest binary required path resolution (/opt/nexus/node_modules/.bin/vitest) since worktree doesn't have its own node_modules. Tests ran cleanly on first attempt.

User Setup Required

None - no external service configuration required.

Next Phase Readiness

  • Plans 01-05 can now reference these stub files in their verify commands
  • Each stub file has describe blocks matching the requirement IDs they cover
  • Implementation plans should fill in the it.todo blocks with real assertions as they build each feature

Phase: 21-chat-foundation Completed: 2026-04-01