docs(17-02): complete display nodes component tests plan

Tasks completed: 2/2
- Add OutputNode component tests (31 tests)
- Add SplitGridNode and GroupNode tests (51 tests)

SUMMARY: .planning/phases/17-component-tests/17-02-SUMMARY.md

.planning/ROADMAP.md

@@ -217,7 +217,7 @@ Plans:
 
 Plans:
 - [x] 17-01: Core Nodes (BaseNode, PromptNode, ImageInputNode)
-- [ ] 17-02: Display Nodes (OutputNode, SplitGridNode, GroupNode)
+- [x] 17-02: Display Nodes (OutputNode, SplitGridNode, GroupNode)
 - [ ] 17-03: Generate Nodes (GenerateImageNode, GenerateVideoNode)
 - [ ] 17-04: Processing Nodes (LLMGenerateNode, AnnotationNode)
 - [ ] 17-05: Toolbars (Header, FloatingActionBar, MultiSelectToolbar)
@@ -281,7 +281,7 @@ Phases execute in numeric order: 1 → 2 → ... → 14 → 15 → 16 → 17 →
 | 14. Fix Drag-Connect Node Creation Bugs | v1.1 | 1/1 | Complete | 2026-01-12 |
 | 15. Test Infrastructure | v1.2 | 1/1 | Complete | 2026-01-12 |
 | 16. Store Modularization | v1.2 | 1/1 | Complete | 2026-01-12 |
-| 17. Component Tests | v1.2 | 1/11 | In progress | - |
+| 17. Component Tests | v1.2 | 2/11 | In progress | - |
 | 18. API Route Tests | v1.2 | 0/? | Not started | - |
 | 19. Type Refactoring | v1.2 | 0/? | Not started | - |
 | 20. Integration Tests | v1.2 | 0/? | Not started | - |

.planning/STATE.md

@@ -10,11 +10,11 @@ See: .planning/PROJECT.md (updated 2026-01-09)
 ## Current Position
 
 Phase: 17 of 20 (Component Tests)
-Plan: 1 of 11 in current phase
+Plan: 2 of 11 in current phase
 Status: In progress
-Last activity: 2026-01-13 - Completed 17-01-PLAN.md
+Last activity: 2026-01-13 - Completed 17-02-PLAN.md
 
-Progress: ████████░░ 81%
+Progress: ████████░░ 82%
 
 ## Performance Metrics
 
@@ -126,6 +126,6 @@ Recent decisions affecting current work:
 ## Session Continuity
 
 Last session: 2026-01-13
-Stopped at: Completed 17-01-PLAN.md
+Stopped at: Completed 17-02-PLAN.md
 Resume file: None
-Next action: Execute Phase 17 Plan 02 (run /gsd:execute-plan .planning/phases/17-component-tests/17-02-PLAN.md)
+Next action: Execute Phase 17 Plan 03 (run /gsd:execute-plan .planning/phases/17-component-tests/17-03-PLAN.md)

.planning/phases/17-component-tests/17-02-SUMMARY.md

@@ -0,0 +1,146 @@
+---
+phase: 17-component-tests
+plan: 02
+subsystem: testing
+tags: [vitest, react-testing-library, component-tests, jsdom, display-nodes]
+
+# Dependency graph
+requires:
+  - phase: 17-01
+    provides: BaseNode test patterns, ReactFlowProvider wrapper, mock patterns
+provides:
+  - OutputNode component test suite (31 tests)
+  - SplitGridNode component test suite (23 tests)
+  - GroupNode component test suite (28 tests)
+  - Video detection testing patterns
+  - Download functionality testing patterns
+  - Group color testing patterns (hex to RGB conversion)
+affects: [17-03, future component tests]
+
+# Tech tracking
+tech-stack:
+  added: []
+  patterns: [document.createElement mock for download testing, RGB color assertion for inline styles]
+
+key-files:
+  created:
+    - src/components/__tests__/OutputNode.test.tsx
+    - src/components/__tests__/SplitGridNode.test.tsx
+    - src/components/__tests__/GroupNode.test.tsx
+  modified: []
+
+key-decisions:
+  - "Download testing: Mock document.createElement to capture anchor href/download before click"
+  - "Color assertions: Use RGB format since browsers convert hex to rgb in inline styles"
+  - "Modal mocking: SplitGridSettingsModal mocked as simple component to test modal open/close"
+
+patterns-established:
+  - "Video detection: Test all 5 paths (data.video, contentType, data:video/, .mp4, .webm)"
+  - "Download testing: Capture anchor properties via createElement mock, not appendChild"
+  - "Color testing: Convert hex colors to RGB format for inline style assertions"
+  - "Modal component mocking: Create simple mock with testid and close callback"
+
+issues-created: []
+
+# Metrics
+duration: 20min
+completed: 2026-01-13
+---
+
+# Phase 17-02: Display Node Component Tests Summary
+
+**Comprehensive test coverage for OutputNode (31 tests), SplitGridNode (23 tests), and GroupNode (28 tests) display components**
+
+## Performance
+
+- **Duration:** 20 min
+- **Started:** 2026-01-13T09:45:00Z
+- **Completed:** 2026-01-13T09:52:00Z
+- **Tasks:** 2
+- **Files created:** 3
+
+## Accomplishments
+
+- OutputNode fully tested: empty state, image/video detection (5 paths), lightbox, download functionality
+- SplitGridNode fully tested: grid display, settings modal, split button, loading/error states
+- GroupNode fully tested: name editing, color picker, delete, resizer, header drag, all 6 colors
+- Established reusable patterns for testing download functionality and color assertions
+
+## Task Commits
+
+Each task was committed atomically:
+
+1. **Task 1: Add OutputNode component tests** - `def71f0` (test)
+2. **Task 2: Add SplitGridNode and GroupNode tests** - `1cbabc5` (test)
+
+## Files Created
+
+- `src/components/__tests__/OutputNode.test.tsx` - 31 tests covering:
+  - Empty state rendering with placeholder
+  - Image content display
+  - Video detection logic (5 paths: data.video, contentType, data:video/, .mp4, .webm)
+  - Video controls (controls, loop, muted, autoPlay, playsInline)
+  - Lightbox open/close functionality
+  - Download for data URL and HTTP URL content
+  - Custom title display and editing
+
+- `src/components/__tests__/SplitGridNode.test.tsx` - 23 tests covering:
+  - Basic rendering with title and handles
+  - Grid configuration display
+  - Empty state and unconfigured warning
+  - Source image display with grid overlay
+  - Settings modal open/close behavior
+  - Split button functionality and disabled states
+  - Loading and error states
+  - Custom title editing
+
+- `src/components/__tests__/GroupNode.test.tsx` - 28 tests covering:
+  - Basic rendering with group name and color
+  - Group name editing (Enter, Escape, blur)
+  - Color picker open/close and selection
+  - Delete group functionality
+  - Node resizer visibility
+  - Header drag functionality
+  - All 6 group colors with RGB assertions
+
+## Decisions Made
+
+- Used document.createElement mock to test download functionality without DOM manipulation issues
+- Converted hex colors to RGB format for inline style assertions (browser behavior)
+- Mocked SplitGridSettingsModal as simple component to focus on modal open/close behavior
+
+## Deviations from Plan
+
+None - plan executed exactly as written
+
+## Issues Encountered
+
+- Initial download tests failed due to document.body.appendChild mock clearing DOM - resolved by mocking createElement instead
+- Hex color assertions failed due to browser converting to RGB - resolved by using RGB format in assertions
+
+## Verification Checklist
+
+- [x] `npm test -- --run` passes all tests (288 tests)
+- [x] `npm run build` succeeds without errors
+- [x] OutputNode video detection logic fully tested (all 5 paths)
+- [x] GroupNode color functionality tested (all 6 colors)
+
+## Test Count Summary
+
+| Component | Tests Added |
+|-----------|-------------|
+| OutputNode | 31 |
+| SplitGridNode | 23 |
+| GroupNode | 28 |
+| **Total** | **82** |
+
+## Next Phase Readiness
+
+- All display node components now have comprehensive test coverage
+- Download testing pattern available for other nodes with download functionality
+- Color testing pattern available for components using inline styles
+- Ready for 17-03 (Annotation node) and remaining component tests
+
+---
+*Phase: 17-component-tests*
+*Completed: 2026-01-13*