44 lines
2.3 KiB
Markdown
44 lines
2.3 KiB
Markdown
# Visual Graph Diff with Change Highlights
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## Module
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Web
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## Status
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VERIFIED
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## Description
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Full graph diff component with change type highlighting (added/removed/changed), layout engine, split-view, connected element detection, and Storybook stories. Originally marked TODO in advisory but now implemented.
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## Implementation Details
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- **Feature directory**: `src/Web/StellaOps.Web/src/app/shared/components/graph-diff/`
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- **Components**:
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- `graph-diff` (`src/Web/StellaOps.Web/src/app/shared/components/graph-diff/graph-diff.component.ts`)
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- `graph-split-view` (`src/Web/StellaOps.Web/src/app/shared/components/graph-diff/graph-split-view.component.ts`)
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- **Engine/Models**:
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- `src/Web/StellaOps.Web/src/app/shared/components/graph-diff/graph-diff-engine.ts`
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- `src/Web/StellaOps.Web/src/app/shared/components/graph-diff/graph-diff.models.ts`
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- **Behavior coverage**:
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- `src/Web/StellaOps.Web/src/tests/graph/visual-graph-diff-with-change-highlights.behavior.spec.ts`
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- **Source**: Feature matrix scan
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## E2E Test Plan
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- **Setup**:
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- [ ] Log in with a user that has appropriate permissions
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- [ ] Navigate to the relevant page/section where this feature appears
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- [ ] Ensure test data exists (scanned artifacts, SBOM data, or seed data as needed)
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- **Core verification**:
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- [ ] Verify side-by-side comparison view renders correctly with two versions
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- [ ] Verify additions, removals, and changes are visually highlighted
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- [ ] Verify diff data matches the expected delta between versions
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- **Edge cases**:
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- [ ] Verify graceful handling when backend API is unavailable (error state)
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- [ ] Verify responsive layout at different viewport sizes
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- [ ] Verify accessibility (keyboard navigation, screen reader labels, ARIA attributes)
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## Verification
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- Run ID: `docs/qa/feature-checks/runs/web/visual-graph-diff-with-change-highlights/run-001/`
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- Date (UTC): 2026-02-11
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- Tier 0: PASS (graph-diff component, split-view component, engine/models, and supported behavior harness paths/symbols verified).
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- Tier 1: PASS (`npm run test` focused + regression include suite: 40 files / 184 tests; `npm run build` passed with baseline warnings only).
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- Tier 2: PASS (change-highlight rendering, connected-element emphasis, split/unified interaction behavior, and deterministic ordering semantics verified via Angular behavior harness).
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