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specs/019-superset-ux-redesign/tests/coverage.md

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+# Coverage Matrix: 019-superset-ux-redesign
+
+**Date**: 2026-02-21  
+**Executed by**: Tester Agent
+
+## Coverage Matrix
+
+| Module | File | Has Tests | TIER | TEST_DATA Available | Notes |
+|--------|------|-----------|------|---------------------|-------|
+| SidebarStore | `frontend/src/lib/stores/sidebar.js` | ✅ | STANDARD | N/A | Store state, toggle, mobile, persistence covered |
+| TaskDrawerStore | `frontend/src/lib/stores/taskDrawer.js` | ✅ | CRITICAL | ⚠️ Not defined in semantics/contracts | Open/close, mapping, retrieval covered |
+| ActivityStore | `frontend/src/lib/stores/activity.js` | ✅ | STANDARD | N/A | Active count and recent task derivation covered |
+| Sidebar | `frontend/src/lib/components/layout/Sidebar.svelte` | ✅ | CRITICAL | ⚠️ Not defined in semantics/contracts | UX state/store integration tests present |
+| TaskDrawer | `frontend/src/lib/components/layout/TaskDrawer.svelte` | ✅ | CRITICAL | ⚠️ Not defined in semantics/contracts | Drawer state and resource-task interactions covered |
+| TopNavbar | `frontend/src/lib/components/layout/TopNavbar.svelte` | ✅ | CRITICAL | ⚠️ Not defined in semantics/contracts | Activity/store integration and UX behaviors covered |
+| Breadcrumbs | `frontend/src/lib/components/layout/Breadcrumbs.svelte` | ✅ | STANDARD | N/A | Added contract + truncation/label logic tests |
+| DashboardsAPI | `backend/src/api/routes/dashboards.py` | ✅ | CRITICAL | ⚠️ Not defined in semantics/contracts | Existing backend tests present (not executed in this cycle) |
+| DatasetsAPI | `backend/src/api/routes/datasets.py` | ✅ | CRITICAL | ⚠️ Not defined in semantics/contracts | Existing backend tests present (not executed in this cycle) |
+| ResourceService | `backend/src/services/resource_service.py` | ✅ | STANDARD | N/A | Existing backend tests present (not executed in this cycle) |
+
+## Current Frontend Test Execution Snapshot
+
+- Test files: **9 passed**
+- Tests: **82 passed**
+- Failed: **0**
+- Skipped: **0**
+
+Command:
+```bash
+cd frontend && npm run test
+```
+
+## Observations
+
+- No explicit `@TEST_DATA` fixtures were found for CRITICAL modules in `.ai/standards/semantics.md`; this file defines format requirements only.
+- Coverage gap addressed: missing tests for `Breadcrumbs.svelte` added in co-located `__tests__` directory.