22541 compose mapped breadcrumb groups in factory and add null fallback guard

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2026-04-09 14:30:03 +01:00
parent 96946ed205
commit 8edd23d621
4 changed files with 153 additions and 118 deletions
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@@ -532,6 +532,39 @@ Follow-ups:
- Next slice option A (larger): move per-path map object declarations out of `components/breadcrumbs.js` into module-level pure factories (still injected with `t/router/currentView`) to further shrink component body.
- Next slice option B (smaller): add one focused parity test asserting mapped resolver fallback returns `null` in component rendering path for non-mapped routes (ensures no accidental render noise).
### CL-22541-R: breadcrumbs mapped-group factory composition + unmapped-route null parity guard
date: 2026-04-09
author: Cline
scope: `lib/routing/breadcrumbRendererFactories.js`, `components/breadcrumbs.js`, `tests/phase22/breadcrumbs-route-map-structure.test.cjs`
type: change
rationale: Execute both approved next slices in one commit by centralizing deterministic mapped route-group composition into a factory-level helper and adding explicit structure guard coverage for null fallback behavior on unmapped routes.
impact: Refactor-only structural consolidation and test hardening; no intended route/auth/session/API/EN-CY/a11y behavior change.
status: completed
Summary:
- Added `createMappedRouteRendererGroups(...)` in `lib/routing/breadcrumbRendererFactories.js` to compose and return all deterministic mapped renderer groups in one place:
- `simpleRouteRenderersByPath`
- `simpleLinkTextPairRenderersByPath`
- `simpleMyPortalRouteRenderersByPath`
- `caseDetailRouteRenderersByPath`
- `detailAndAccountRouteRenderersByPath`
- Updated `components/breadcrumbs.js` to consume `createMappedRouteRendererGroups(...)` and remove local per-group factory composition boilerplate while preserving existing map precedence and resolver flow.
- Expanded `tests/phase22/breadcrumbs-route-map-structure.test.cjs` to assert:
- grouped renderer maps are composed via `createMappedRouteRendererGroups(...)`
- mapped rendering path explicitly preserves null fallback (`routeRenderer ? routeRenderer() : null`)
Validation:
- `npx eslint lib/routing/breadcrumbRendererFactories.js components/breadcrumbs.js tests/phase22/breadcrumbs-route-map-structure.test.cjs tests/phase22/breadcrumb-route-maps-helper.test.cjs tests/phase22/index.test.cjs` -> pass.
- `node tests/phase22/index.test.cjs` -> pass (combined suite; breadcrumbs-route-map 4/4).
Follow-ups:
- Next slice option A (larger): extract remaining deterministic inline branches (`/myportal/case`, `/case/id/[incident]` if kept deterministic after constraints review) only if they remain callback/state free.
- Next slice option B (smaller): add one focused assertion in helper-level tests that empty grouped map entries are tolerated without affecting precedence resolution.
### CL-00X: 22500 `components/elements/index.js` Phase 1 helper extraction
date: 2026-04-07