fix(tests): Add Firefox to CI integration tests and update jsdom

The GitHub Actions workflow now runs integration tests on both Chromium and Firefox browsers, with Playwright browser installation and caching updated accordingly. Coverage is only collected for Chromium runs. Updated jsdom to 27.4.0 and adjusted related dependencies. Added a .yarnrc file to suppress npm 11.x warnings.

Author: jcputney

.github/workflows/main.yml

@@ -138,13 +138,14 @@ jobs:
           retention-days: 1
 
   integration-tests:
-    name: Integration Tests (Shard ${{ matrix.shard }}/${{ strategy.job-total }})
+    name: Integration (${{ matrix.browser }}, Shard ${{ matrix.shard }}/4)
     needs: build-and-unit
     if: github.actor != 'dependabot[bot]'
     runs-on: ubuntu-latest
     strategy:
       fail-fast: false
       matrix:
+        browser: [chromium, firefox]
         shard: [ 1, 2, 3, 4 ]
     steps:
       - name: Checkout code
@@ -170,37 +171,37 @@ jobs:
         id: playwright-cache
         with:
           path: ~/.cache/ms-playwright
-          key: playwright-${{ runner.os }}-${{ hashFiles('package-lock.json') }}
+          key: playwright-${{ runner.os }}-${{ matrix.browser }}-${{ hashFiles('package-lock.json') }}
 
-      - name: Install Playwright browsers
+      - name: Install Playwright browser
         if: steps.playwright-cache.outputs.cache-hit != 'true'
-        run: npx playwright install --with-deps
+        run: npx playwright install --with-deps ${{ matrix.browser }}
 
       - name: Install Playwright deps only
         if: steps.playwright-cache.outputs.cache-hit == 'true'
-        run: npx playwright install-deps
+        run: npx playwright install-deps ${{ matrix.browser }}
 
       - name: Create coverage directories
         if: github.event_name == 'push' && github.ref == 'refs/heads/master'
         run: mkdir -p coverage/e2e/shard-${{ matrix.shard }}
 
-      - name: Run integration tests (shard ${{ matrix.shard }}/4)
+      - name: Run integration tests (${{ matrix.browser }}, shard ${{ matrix.shard }}/4)
         env:
-          COVERAGE: ${{ github.event_name == 'push' && github.ref == 'refs/heads/master' && 'true' || 'false' }}
+          COVERAGE: ${{ github.event_name == 'push' && github.ref == 'refs/heads/master' && matrix.browser == 'chromium' && 'true' || 'false' }}
           SHARD_INDEX: ${{ matrix.shard }}
-        run: npx playwright test --project=chromium --shard=${{ matrix.shard }}/4
+        run: npx playwright test --project=${{ matrix.browser }} --shard=${{ matrix.shard }}/4
 
       - name: Upload test results
         if: always()
         uses: actions/upload-artifact@v6
         with:
-          name: playwright-results-shard-${{ matrix.shard }}
+          name: playwright-results-${{ matrix.browser }}-shard-${{ matrix.shard }}
           path: test-results/
           retention-days: 7
           if-no-files-found: ignore
 
       - name: Upload coverage artifact
-        if: github.event_name == 'push' && github.ref == 'refs/heads/master'
+        if: github.event_name == 'push' && github.ref == 'refs/heads/master' && matrix.browser == 'chromium'
         uses: actions/upload-artifact@v6
         with:
           name: coverage-shard-${{ matrix.shard }}

.yarnrc

@@ -0,0 +1,5 @@
+# Disable yarn's npm config passthrough to avoid warnings with npm 11.x
+version-git-tag false
+version-commit-hooks false
+version-git-message ""
+version-tag-prefix ""