Add code coverage workflow

Author: Electronic-Mango

.github/workflows/code-coverage.yml

@@ -0,0 +1,32 @@
+# Create code coverage report in Coveralls.io.
+
+name: Coveralls.io code coverage report
+
+on:
+  push:
+    branches: [ "main" ]
+  pull_request:
+    branches: [ "main" ]
+  workflow_dispatch:
+
+jobs:
+  build:
+    name: Running unit tests
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v3
+    - name: Set up Python 3.11
+      uses: actions/setup-python@v3
+      with:
+        python-version: "3.11"
+    - name: Install dependencies
+      run: |
+        python -m pip install --upgrade pip
+        pip install -r requirements.txt
+    - name: Install coveralls
+      run: |
+        python -m pip install coveralls
+    - name: Checking coverage
+      run: |
+        coverage run --source=simplejustwatchpythonapi -m pytest test/
+        COVERALLS_REPO_TOKEN=${{ secrets.COVERALLS_TOKEN }} coveralls