Node Diff Table Component (Tabular SBOM Change Comparison)

Module

Web

Status

VERIFIED

Description

Tabular SBOM component-change diff view with change-type filter chips, debounced search, multi-column sorting, row selection with bulk actions, pagination, clipboard actions, and CSV export for lineage comparisons.

Implementation Details

Feature directory: src/Web/StellaOps.Web/src/app/features/lineage/components/node-diff-table/
Primary component:
- diff-table.component.ts
- diff-table.component.html
- diff-table.component.scss
- models/diff-table.models.ts
Service dependency:
- src/Web/StellaOps.Web/src/app/features/lineage/services/lineage-graph.service.ts
Behavioral tests:
- src/Web/StellaOps.Web/src/tests/lineage/node-diff-table-component.spec.ts

E2E Test Plan

Setup:
- Log in with a user that has appropriate permissions
- Navigate to lineage comparison workflow hosting the node diff table
- Ensure comparison data exists (added/removed/changed components)
Core verification:
- Verify component rows render and sort deterministically
- Verify search is debounced and filter chips (including both-changed) work
- Verify bulk actions, pagination, and API-input based diff fetch behavior
Edge cases:
- Verify graceful handling when backend API is unavailable (error state)
- Verify responsive layout at different viewport sizes
- Verify accessibility (keyboard navigation, screen reader labels, ARIA attributes)

Verification

Run: docs/qa/feature-checks/runs/web/node-diff-table-component/run-001/
Tier 0 (source): pass (tier0-source-check.json)
Tier 1 (build/tests): pass (tier1-build-check.json)
Tier 2 (behavior): pass (tier2-e2e-check.json)
Verified on (UTC): 2026-02-11T09:03:08.3546412Z

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