added github workflow for testing

.github/workflows/pytest.yaml

@@ -0,0 +1,34 @@
+name: Pytest
+
+on:
+  push:
+  pull_request:
+    branches:
+      - main
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        python-version: ['3.10']
+      max-parallel: 1
+    env: # Or as an environment variable
+      PROJECT: ${{ secrets.PROJECT }}
+      SOURCE_TABLE: ${{ secrets.SOURCE_TABLE }}
+      DESTINATION_TABLE: ${{ secrets.DESTINATION_TABLE }}
+      DATASET: ${{ secrets.DATASET }}
+      SA_JSON: ${{ secrets.SA_JSON }}
+    steps:
+      - uses: actions/checkout@v3
+      - name: Set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v3
+        with:
+          python-version: ${{ matrix.python-version }}
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
+          python -m pip install pytest==7.4.3
+      - name: Test with pytest
+        run: |
+          python -m pytest -vv

tests/__init__.py

@@ -20,7 +20,15 @@ def env_var_loader(file_name, file_path=None):
     if os.path.isfile(env_path):
         load_dotenv(dotenv_path=env_path)
 
-
+# load env vars
 env_var_loader("tests/.env")
 
+# load path to get python files
 sys.path.append(os.path.join(os.getcwd(), 'cloud_function'))
+
+# load sa if applicable
+if os.environ.get('SA_JSON'):
+    file_name = 'sa.json'
+    with open(file_name, 'r') as f:
+        f.write(os.environ['SA_JSON'])
+    os.environ['GOOGLE_APPLICATION_CREDENTIALS'] = file_name