Testing Strategy Directory Layout tests/unit/: Vitest unit tests tests/integration/: Vitest integration tests tests/development/: Vitest helper tests used during feature development tests/preview/: Playwright tests for preview/user-flow checks Run Commands Vitest all vitest tests: bun test:run unit only: bun test:unit integration only: bun test:integration development helpers: bun test:dev:traffic bun test:dev:build bun test:dev:events watch mode: bun test:watch ui mode: bun test:ui Playwright Preview Tests install browsers: bun run e2e:install-browsers dev mode: bun run e2e:test:dev preview/pr mode: bun run e2e:test:pr headed mode: bun run e2e:headed CI Workflows code quality: .github/workflows/code-quality.yml test pipeline: .github/workflows/test.yml Notes The old Vitest test:e2e placeholder suite was removed. Preview/user-flow coverage now lives under Playwright in tests/preview/.