Parallelize pytest #360

.github/workflows/test.yml

@@ -10,6 +10,9 @@ jobs:
   integration-tests:
     # Containers must run in Linux based operating systems
     runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        group: [1, 2, 3, 4]
 
     # Service containers to run with `container-job`
     services:
@@ -47,12 +50,43 @@ jobs:
           pip install -r requirements.txt
 
       - name: Run tests
-        run: pytest --cov=project
+        run: pytest --cov=project --splits 4 --group ${{ matrix.group }}
         env:
           TEST_DATABASE_URL: postgresql://postgres:postgres@localhost/gsevpt_tests
 
-      - name: Codecov
+      - name: Upload coverage
+        uses: actions/upload-artifact@v2
+        with:
+          name: coverage${{ matrix.group }}
+          path: .coverage
+
+
+  coverage:
+    needs: integration-tests
     if: ${{ success() }}
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check out repository code
+        uses: actions/checkout@v2
+
+      - name: Set up Python 3.8
+        uses: actions/setup-python@v2
+        with:
+          python-version: '3.8'
+
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install -r requirements.txt
+
+      - name: Download all artifacts
+        # Downloads coverage1, coverage2, etc.
+        uses: actions/download-artifact@v2
+
+      - name: Combine coverage files
+        run: coverage combine coverage*/.coverage*
+
+      - name: Codecov
         uses: codecov/codecov-action@v1
         with:
           verbose: true