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Thomas Richter 623811908b docs(09-01): complete Vitest infrastructure plan

Tasks completed: 3/3
- Install Vitest dependencies and configure multi-project setup
- Create SvelteKit module mocks in setup file
- Write sample test to verify infrastructure

SUMMARY: .planning/phases/09-ci-pipeline/09-01-SUMMARY.md

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

2026-02-03 23:30:46 +01:00

3.5 KiB

Raw Blame History

phase: 09-ci-pipeline plan: 01 subsystem: testing tags: [vitest, playwright, svelte5, coverage, browser-testing] # Dependency graph requires: - phase: 01-foundation provides: SvelteKit project structure with vite.config.ts provides: - Multi-project Vitest configuration (browser + node modes) - SvelteKit module mocks ($app/navigation, $app/stores, $app/environment) - Test scripts (test, test:unit, test:coverage) - Coverage reporting with v8 provider affects: [09-02, 09-03] # Tech tracking tech-stack: added: [vitest@4.0.18, @vitest/browser, @vitest/browser-playwright, vitest-browser-svelte, @vitest/coverage-v8] patterns: [multi-project-test-config, sveltekit-module-mocking] key-files: created: - vitest-setup-client.ts - src/lib/utils/filterEntries.test.ts modified: - vite.config.ts - package.json key-decisions: - "Multi-project setup: browser (client) vs node (server) test environments" - "Coverage thresholds with autoUpdate initially (no hard threshold yet)" - "SvelteKit mocks use simple vi.mock, not importOriginal (avoids SSR issues)" patterns-established: - ".svelte.test.ts for component tests (browser mode)" - ".test.ts for utility/server tests (node mode)" - "Test factory functions for creating test data" # Metrics duration: 3min completed: 2026-02-03

Phase 9 Plan 1: Vitest Infrastructure Summary

Multi-project Vitest configuration with browser mode for Svelte 5 components and node mode for server/utility tests

Performance

Duration: 3 min
Started: 2026-02-03T22:27:09Z
Completed: 2026-02-03T22:29:58Z
Tasks: 3
Files modified: 4

Accomplishments

Vitest installed and configured with multi-project setup
Browser mode ready for Svelte 5 component tests (via Playwright)
Node mode ready for server/utility tests
SvelteKit module mocks ($app/*) for test isolation
Coverage reporting functional (v8 provider, autoUpdate thresholds)
17 unit tests proving infrastructure works

Task Commits

Each task was committed atomically:

Task 1: Install Vitest dependencies and configure multi-project setup - a3ef94f (feat)
Task 2: Create SvelteKit module mocks in setup file - b0e8e4c (feat)
Task 3: Write sample test to verify infrastructure - b930f18 (test)

Files Created/Modified

vite.config.ts - Multi-project Vitest config (client browser mode + server node mode)
vitest-setup-client.ts - SvelteKit module mocks for browser tests
package.json - Test scripts (test, test:unit, test:unit:watch, test:coverage)
src/lib/utils/filterEntries.test.ts - Sample unit test with 17 test cases, 100% coverage

Decisions Made

Used v8 coverage provider (10x faster than istanbul, equally accurate since Vitest 3.2)
Set coverage thresholds to autoUpdate initially - Plan 02 will enforce 80% threshold
Browser mode uses Playwright provider (real browser via Chrome DevTools Protocol)
SvelteKit mocks are simple vi.fn() implementations, not importOriginal (causes SSR issues per research)

Deviations from Plan

None - plan executed exactly as written.

Issues Encountered

None

User Setup Required

None - no external service configuration required.

Next Phase Readiness

Test infrastructure ready for Plan 02 (coverage thresholds, CI integration)
Component test infrastructure ready but no component tests yet (Plan 03 scope)
filterEntries.test.ts demonstrates node-mode test pattern

Phase: 09-ci-pipeline Completed: 2026-02-03

3.5 KiB Raw Blame History