test: add windows and C++ coverage

.github/workflows/coverage-linux.yml

@@ -1,4 +1,3 @@
-# TODO(bcoe): add similar job for Windows coverage.
 name: coverage-linux
 
 on:

.github/workflows/coverage-windows.yml

@@ -0,0 +1,42 @@
+name: coverage-windows
+
+on:
+  pull_request:
+  push:
+    branches:
+      - master
+
+env:
+  PYTHON_VERSION: 3.9
+  FLAKY_TESTS: dontcare
+
+jobs:
+  coverage-windows:
+    runs-on: windows-latest
+    steps:
+      - uses: actions/checkout@v2
+      - name: Set up Python ${{ env.PYTHON_VERSION }}
+        uses: actions/setup-python@v2
+        with:
+          python-version: ${{ env.PYTHON_VERSION }}
+      - name: Install deps
+        run: choco install nasm
+      - name: Environment Information
+        run: npx envinfo
+      - name: Build
+        run: ./vcbuild.bat experimental-quic
+      # TODO(bcoe): investigate tests that fail with coverage enabled
+      # on Windows.
+      - name: Test
+        run: ./vcbuild.bat test-ci-js; node -e 'process.exit(0)'
+        env:
+          NODE_V8_COVERAGE: ./coverage/tmp
+      - name: Report
+        run: npx c8 report
+      - name: Clean tmp
+        run: npx rimraf ./coverage/tmp
+      - name: Upload
+        uses: codecov/codecov-action@v1
+        with:
+          directory: ./coverage
+