Code coverage pre-QA push.

.github/workflows/ci.yml

@@ -161,6 +161,7 @@ jobs:
     env:
       NODE_TLS_REJECT_UNAUTHORIZED: 0
       AZURE_SUBSCRIPTION_ID: ${{ secrets.AZURE_SUBSCRIPTION_ID }}
+      COVERAGE: "true"
     strategy:
       fail-fast: false
       matrix:
@@ -219,6 +220,13 @@ jobs:
           name: blob-report-${{ matrix.shardIndex }}
           path: blob-report
           retention-days: 1
+      - name: Upload coverage data
+        if: ${{ !cancelled() }}
+        uses: actions/upload-artifact@v4
+        with:
+          name: coverage-data-${{ matrix.shardIndex }}
+          path: .nyc_output
+          retention-days: 1
 
   merge-playwright-reports:
     name: "Merge Playwright Reports"
@@ -251,3 +259,39 @@ jobs:
           name: html-report--attempt-${{ github.run_attempt }}
           path: playwright-report
           retention-days: 14
+
+  merge-coverage:
+    name: "Merge Code Coverage"
+    if: ${{ !cancelled() }}
+    needs: [playwright-tests]
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-node@v4
+        with:
+          node-version: 18
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Download coverage data from all shards
+        uses: actions/download-artifact@v4
+        with:
+          path: all-coverage
+          pattern: coverage-data-*
+          merge-multiple: true
+
+      - name: Merge coverage data
+        run: |
+          mkdir -p .nyc_output
+          cp all-coverage/*.json .nyc_output/ 2>/dev/null || true
+          npx nyc merge .nyc_output .nyc_output/merged-coverage.json
+
+      - name: Generate coverage report
+        run: npx nyc report --temp-dir .nyc_output --report-dir coverage-e2e --reporter text --reporter text-summary --reporter lcov --reporter html
+
+      - name: Upload coverage report
+        uses: actions/upload-artifact@v4
+        with:
+          name: coverage-report--attempt-${{ github.run_attempt }}
+          path: coverage-e2e
+          retention-days: 14

.gitignore

@@ -1,6 +1,8 @@
 built/*
 dist/*
 coverage/**
+coverage-e2e/**
+.nyc_output/
 css/*
 Definitions/**/*
 libs/**/*

.nycrc.json

@@ -0,0 +1,16 @@
+{
+  "extends": "@istanbuljs/nyc-config-typescript",
+  "all": true,
+  "include": ["src/**/*.ts", "src/**/*.tsx"],
+  "exclude": [
+    "src/**/*.test.ts",
+    "src/**/*.test.tsx",
+    "src/**/*.spec.ts",
+    "src/**/*.spec.tsx",
+    "src/**/*.d.ts",
+    "src/setupTests.ts"
+  ],
+  "reporter": ["text", "text-summary", "lcov", "html"],
+  "report-dir": "coverage-e2e",
+  "temp-dir": ".nyc_output"
+}