ci-cd-integration

Push to branch:   lint+types (30s) → unit (1-2m)
PR opened:        + integration (2-3m) → E2E sharded (5-8m) → merge report
Merge to main:    full E2E ∥ visual ∥ perf budget → deploy (OIDC)
Nightly (cron):   full suite + npm audit + axe a11y + flaky quarantine

concurrency:
  group: tests-${{ github.ref }}
  cancel-in-progress: true

strategy:
  fail-fast: false
  matrix:
    shard: [1, 2, 3, 4]
steps:
  - run: npx playwright test --shard=${{ matrix.shard }}/4

- uses: actions/setup-node@v6
  with: { node-version: 22, cache: npm }

- name: Cache Playwright browsers
  id: playwright-cache
  uses: actions/cache@v5
  with:
    path: ~/.cache/ms-playwright
    key: playwright-${{ runner.os }}-${{ hashFiles('package-lock.json') }}

- name: Install Playwright browsers
  if: steps.playwright-cache.outputs.cache-hit != 'true'
  run: npx playwright install --with-deps chromium

- name: Publish test results
  uses: dorny/test-reporter@v3
  if: ${{ !cancelled() }}
  with:
    name: Test Results
    path: test-results/junit.xml
    reporter: jest-junit  # use java-junit for a Playwright JUnit report

e2e-stable:        # required for merge
  steps:
    - run: npx playwright test --grep-invert @flaky

e2e-quarantine:    # non-blocking
  continue-on-error: true
  steps:
    - run: npx playwright test --grep @flaky
    - if: failure()
      run: echo "::warning::Quarantined tests failed. Review and fix or remove."

test('sometimes fails due to race condition @flaky', async ({ page }) => {
  // runs in CI but doesn't block merges
});

deploy:
  permissions:
    id-token: write   # request the OIDC JWT
    contents: read
  steps:
    - uses: aws-actions/configure-aws-credentials@v6
      with:
        role-to-assume: arn:aws:iam::123456789012:role/gha-deploy
        aws-region: eu-central-1
    - run: ./deploy.sh production   # uses short-lived STS creds, no static secret

coverageThreshold: { global: { lines: 80, statements: 80, branches: 70 } }

- run: npm test -- --ci --coverage   # exits 1 if below coverageThreshold
- name: Print coverage (optional)
  run: |
    PCT=$(jq '.total.lines.pct' coverage/coverage-summary.json)
    echo "Line coverage: ${PCT}%"

- run: npm audit --audit-level=high   # fails on high/critical advisories
- run: npx playwright test --grep @a11y   # specs that call @axe-core/playwright

import AxeBuilder from '@axe-core/playwright';
test('home page has no a11y violations @a11y', async ({ page }) => {
  await page.goto('/');
  const results = await new AxeBuilder({ page }).analyze();
  expect(results.violations).toEqual([]);
});