feat(test): WP-46 — Vitest coverage (report-only)

Enable coverage via the @angular/build:unit-test builder's first-class options: a
`coverage` configuration on the test target (v8 provider, text-summary/html/lcov,
excludes for specs/stories/contracts/generated client) + `npm run test:coverage`.
Report-only (no thresholds) — visibility first. CI's test step now runs test:coverage
(strict superset: fails on a failing test, never on coverage). Baseline ~71% stmts.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
This commit is contained in:
eho
2026-07-23 14:23:55 +02:00
co-authored by Claude Opus 4.8
parent 7d2a36ff22
commit f8cd77a48a
7 changed files with 157 additions and 8 deletions
+3 -1
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@@ -31,7 +31,9 @@ jobs:
- run: npm run dep:check
- run: npm run format:check
- run: npm run check:tokens
- run: npm test
# Runs the full suite AND reports coverage (WP-46, report-only — no thresholds, so
# it can't fail on coverage; it still fails on a failing test, like `npm test` did).
- run: npm run test:coverage
# --localize builds every configured locale (nl + en, angular.json's i18n
# block) in one pass; i18nMissingTranslation:"error" (angular.json) fails
# this step if messages.en.xlf is missing a unit the source (WP-20) gains.
+16 -1
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@@ -91,7 +91,22 @@
"defaultConfiguration": "development"
},
"test": {
"builder": "@angular/build:unit-test"
"builder": "@angular/build:unit-test",
"configurations": {
"coverage": {
"coverage": true,
"coverageReporters": ["text-summary", "html", "lcov"],
"coverageExclude": [
"**/*.spec.ts",
"**/*.stories.ts",
"**/contracts/**",
"src/app/shared/infrastructure/api-client.ts",
"src/main.ts",
"src/test-setup.ts",
"**/*.d.ts"
]
}
}
},
"storybook": {
"builder": "@storybook/angular:start-storybook",
+1 -1
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@@ -90,7 +90,7 @@ for its existing violations, so every WP ends green.
| [WP-43](WP-43-scaffold-generators.md) | Runnable generators: value-object / form-machine / bff-endpoint / ui-component | 8 · platform/DX/showcase | todo |
| [WP-44](WP-44-context-generator.md) | Runnable generator: `gen:context` | 8 · platform/DX/showcase | todo |
| [WP-45](WP-45-create-ssp-generator.md) | `create-ssp` bootstrap generator (mechanise new-ssp) | 8 · platform/DX/showcase | todo |
| [WP-46](WP-46-vitest-coverage.md) | Vitest coverage (report + report-only thresholds) | 8 · platform/DX/showcase | todo |
| [WP-46](WP-46-vitest-coverage.md) | Vitest coverage (report + report-only thresholds) | 8 · platform/DX/showcase | done |
Sequencing dependencies (stated in the WPs too): 01 before 1015 (axe covers story churn);
03/04 before 0509 (boundaries stop new violations during refactors); 06 before 07 (typed
+16 -4
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@@ -1,9 +1,21 @@
# WP-46 — Vitest coverage (report + thresholds)
Status: todo
Status: done
Phase: 8 — platform/DX/showcase
Priority: P1
## Outcome
Coverage is first-class in the `@angular/build:unit-test` builder — no separate vitest config
needed. Added a `coverage` **configuration** to the `test` target in `angular.json` (`coverage: true`,
reporters `text-summary`/`html`/`lcov`, excludes for specs/stories/contracts/generated
`api-client.ts`/`main.ts`/`.d.ts`) + `@vitest/coverage-v8` (pinned to vitest's 4.1.9 to avoid the
mixed-version warning). `npm run test:coverage``ng test --configuration coverage`. **Report-only
(no thresholds)** per the ponytail default — visibility first. CI's test step now runs
`test:coverage` (a strict superset of `npm test`: fails on a failing test, never on coverage).
Baseline at delivery: **~71% statements / 69% branches / 68% functions / 74% lines.** Output dir
`coverage/` was already git-ignored. Path to enforce later: add `coverageThresholds` to the config.
## Why
Tests run via the `@angular/build:unit-test` (Vitest) builder but report no coverage — there's no
@@ -29,6 +41,6 @@ visibility into what the house test rules actually cover. A template/showcase sh
## Acceptance criteria
- [ ] `npm run test:coverage` produces a report (text + HTML/lcov) with sensible excludes.
- [ ] Coverage runs in CI without failing the build (report-only).
- [ ] `npm run ci` green.
- [x] `npm run test:coverage` produces a report (text-summary + HTML/lcov) with sensible excludes.
- [x] Coverage runs in CI without failing the build (report-only).
- [x] `npm run ci` green.
+118
View File
@@ -33,6 +33,7 @@
"@storybook/addon-onboarding": "^10.4.6",
"@storybook/angular": "^10.4.6",
"@storybook/test-runner": "^0.24.4",
"@vitest/coverage-v8": "^4.1.9",
"angular-eslint": "^22.0.0",
"axe-playwright": "^2.2.2",
"concurrently": "^10.0.3",
@@ -10409,6 +10410,92 @@
"vite": "^6.0.0 || ^7.0.0 || ^8.0.0"
}
},
"node_modules/@vitest/coverage-v8": {
"version": "4.1.9",
"resolved": "https://registry.npmjs.org/@vitest/coverage-v8/-/coverage-v8-4.1.9.tgz",
"integrity": "sha512-G9/lgqibheLVBDRuya45EbsEXTYcWoSG+TLg7i2axuzx0Eq62eXn+aWXyaVdV5vKvFSWd6ywcX8hA7la9Pvu8g==",
"dev": true,
"license": "MIT",
"dependencies": {
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"@vitest/utils": "4.1.9",
"ast-v8-to-istanbul": "^1.0.0",
"istanbul-lib-coverage": "^3.2.2",
"istanbul-lib-report": "^3.0.1",
"istanbul-reports": "^3.2.0",
"magicast": "^0.5.2",
"obug": "^2.1.1",
"std-env": "^4.0.0-rc.1",
"tinyrainbow": "^3.1.0"
},
"funding": {
"url": "https://opencollective.com/vitest"
},
"peerDependencies": {
"@vitest/browser": "4.1.9",
"vitest": "4.1.9"
},
"peerDependenciesMeta": {
"@vitest/browser": {
"optional": true
}
}
},
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"version": "1.0.2",
"resolved": "https://registry.npmjs.org/@bcoe/v8-coverage/-/v8-coverage-1.0.2.tgz",
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"dev": true,
"license": "MIT",
"engines": {
"node": ">=18"
}
},
"node_modules/@vitest/coverage-v8/node_modules/@vitest/pretty-format": {
"version": "4.1.9",
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"license": "MIT",
"dependencies": {
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},
"funding": {
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}
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"license": "MIT",
"dependencies": {
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"convert-source-map": "^2.0.0",
"tinyrainbow": "^3.1.0"
},
"funding": {
"url": "https://opencollective.com/vitest"
}
},
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"dev": true,
"license": "MIT"
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"node_modules/@vitest/coverage-v8/node_modules/tinyrainbow": {
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"resolved": "https://registry.npmjs.org/tinyrainbow/-/tinyrainbow-3.1.0.tgz",
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"engines": {
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"node_modules/@vitest/expect": {
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@@ -11241,6 +11328,25 @@
"node": ">=4"
}
},
"node_modules/ast-v8-to-istanbul": {
"version": "1.0.5",
"resolved": "https://registry.npmjs.org/ast-v8-to-istanbul/-/ast-v8-to-istanbul-1.0.5.tgz",
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"dev": true,
"license": "MIT",
"dependencies": {
"@jridgewell/trace-mapping": "^0.3.31",
"estree-walker": "^3.0.3",
"js-tokens": "^10.0.0"
}
},
"node_modules/ast-v8-to-istanbul/node_modules/js-tokens": {
"version": "10.0.0",
"resolved": "https://registry.npmjs.org/js-tokens/-/js-tokens-10.0.0.tgz",
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"license": "MIT"
},
"node_modules/async": {
"version": "3.2.6",
"resolved": "https://registry.npmjs.org/async/-/async-3.2.6.tgz",
@@ -18686,6 +18792,18 @@
"@jridgewell/sourcemap-codec": "^1.5.5"
}
},
"node_modules/magicast": {
"version": "0.5.3",
"resolved": "https://registry.npmjs.org/magicast/-/magicast-0.5.3.tgz",
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"dependencies": {
"@babel/parser": "^7.29.3",
"@babel/types": "^7.29.0",
"source-map-js": "^1.2.1"
}
},
"node_modules/make-dir": {
"version": "4.0.0",
"resolved": "https://registry.npmjs.org/make-dir/-/make-dir-4.0.0.tgz",
+2
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@@ -11,6 +11,7 @@
"build": "ng build",
"watch": "ng build --watch --configuration development",
"test": "ng test",
"test:coverage": "ng test --configuration coverage",
"storybook": "ng run atomic-design-poc:storybook",
"build-storybook": "ng run atomic-design-poc:build-storybook",
"test-storybook": "test-storybook",
@@ -50,6 +51,7 @@
"@storybook/addon-onboarding": "^10.4.6",
"@storybook/angular": "^10.4.6",
"@storybook/test-runner": "^0.24.4",
"@vitest/coverage-v8": "^4.1.9",
"angular-eslint": "^22.0.0",
"axe-playwright": "^2.2.2",
"concurrently": "^10.0.3",
+1 -1
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@@ -15,7 +15,7 @@ step "lint"; npm run lint
step "dependency boundaries"; npm run dep:check
step "format:check (prettier)"; npm run format:check
step "check:tokens"; npm run check:tokens
step "test (vitest)"; npm test
step "test (vitest + coverage)"; npm run test:coverage
step "build --localize (nl+en)"; npx ng build --localize
step "npm audit (shipped deps)"; npm audit --omit=dev
step "backend format + tests"; ( cd backend && dotnet format BigRegister.slnx --verify-no-changes && dotnet test BigRegister.slnx )