Create code-coverage.yml (#1190)

copied from /tableau/tabcmd repo

Author: jacalata

.github/workflows/code-coverage.yml

@@ -0,0 +1,38 @@
+name: Check Test Coverage
+
+on:
+  pull_request:
+    branches:
+      - development
+
+jobs:
+  build:
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-latest, macos-latest, windows-latest]
+        python-version: ['3.10']
+
+    runs-on: ${{ matrix.os }}
+
+    steps:
+    - uses: actions/checkout@v2
+
+    - name: Set up Python ${{ matrix.python-version }} on ${{ matrix.os }}
+      uses: actions/setup-python@v2
+      with:
+        python-version: ${{ matrix.python-version }}
+
+    - name: Install dependencies
+      run: |
+        python -m pip install --upgrade pip
+        pip install -e .[test]
+
+    #  https://github.com/marketplace/actions/pytest-coverage-comment
+    - name: Generate coverage report
+      run: pytest --junitxml=pytest.xml --cov=tableauserverclient tests/ | tee pytest-coverage.txt
+
+    - name: Comment on pull request with coverage
+      uses: MishaKav/pytest-coverage-comment@main
+      with:
+        pytest-coverage-path: ./pytest-coverage.txt