popiart-node-canvas/.planning/phases/17-component-tests/17-01-SUMMARY.md

phase	plan	subsystem	tags	requires	provides	affects	tech-stack	key-files	key-decisions	patterns-established	issues-created	duration	completed
17-component-tests	1	testing	[vitest react-testing-library component-tests jsdom]	{phase 15-test-infrastructure} {provides Vitest setup, React Testing Library, test patterns}	[BaseNode component test suite (35 tests) ImageInputNode component test suite (21 tests) Extended PromptNode tests (3 additional tests) FileReader/DataTransfer mocking patterns for file upload tests]	[17-02 17-03 future component tests]	[{added []} {patterns [FileReader class mocking DataTransfer mock for jsdom handle type querying via data-handletype]}]	[{created [src/components/__tests__/BaseNode.test.tsx src/components/__tests__/ImageInputNode.test.tsx]} {modified [src/components/__tests__/PromptNode.test.tsx]}]	[FileReader mocked as class (not vi.spyOn) to satisfy Vitest constructor requirements DataTransfer mock limited to empty-file drop tests due to jsdom FileList limitations]	[FileReader mocking: Use class implementation with async onload trigger via setTimeout Image mocking: Class with getter/setter for src to trigger async onload DataTransfer mocking: Class with items.add() and files getter returning FileList-like object Handle type querying: Use container.querySelector('[data-handletype="type"]')]	[]	15min	2026-01-13

Phase 17-01: Component Tests Summary

Comprehensive test coverage for BaseNode (35 tests), ImageInputNode (21 tests), and extended PromptNode tests with proper browser API mocking patterns

Performance

• Duration: 15 min
• Started: 2026-01-13T09:39:00Z
• Completed: 2026-01-13T09:42:30Z
• Tasks: 2
• Files modified: 3 (1 modified, 2 created)

Accomplishments

• BaseNode component fully tested: rendering, title editing, comments, expand/run buttons, lock badge, visual states
• ImageInputNode fully tested: empty/image states, file validation, FileReader flow, remove button, drag/drop
• PromptNode extended with modal/expand tests and handle verification
• Established reusable patterns for testing file upload components in jsdom

Task Commits

Each task was committed atomically:

1. Task 1: Add BaseNode component tests - 93d3003 (test)
2. Task 2: Extend PromptNode tests and add ImageInputNode tests - cd8e0d3 (test)

Files Created/Modified

• src/components/__tests__/BaseNode.test.tsx - 35 tests covering rendering, title editing, comments, buttons, lock badge, visual states
• src/components/__tests__/ImageInputNode.test.tsx - 21 tests covering empty state, image display, file handling, validation, drag/drop
• src/components/__tests__/PromptNode.test.tsx - Extended with 3 tests for expand button and handle rendering

Decisions Made

• FileReader mocked as ES6 class with async setTimeout triggers to properly simulate browser async behavior
• DataTransfer mock class created but full drop-to-process flow limited by jsdom's FileList restrictions
• Used [data-handletype="type"] selector pattern for querying React Flow handles

Deviations from Plan

None - plan executed exactly as written

Issues Encountered

• jsdom does not allow setting HTMLInputElement.files from plain array - worked around by testing empty-file drop scenario and documenting limitation
• Vitest requires FileReader mock to use class/function syntax, not plain object - fixed by using ES6 class

Next Phase Readiness

• Test patterns established for remaining node components
• FileReader/Image mocking can be reused for any file upload node tests
• Ready for 17-02 (NanoBanana, Output, LLM nodes) and 17-03 (Annotation node)

---

Phase: 17-component-tests Completed: 2026-01-13