Integrate codecov

.github/workflows/tests.yml

@@ -31,3 +31,10 @@ jobs:
       - name: Test with tox
         run: |
           tox
+      - name: Upload coverage reports to Codecov
+        uses: codecov/codecov-action@v1
+        with:
+          token: ${{ secrets.CODECOV_TOKEN }}
+          flags: unittests
+          name: Python ${{ matrix.python }} on ${{ matrix.os }}
+          fail_ci_if_error: true

tox.ini

@@ -16,7 +16,7 @@ passenv = INCLUDE LIB LIBPATH Platform VCTools* VSCMD_* WindowsSDK*
 commands_pre =
     poetry install
 commands =
-    poetry run pytest --cov-report=xml -sv tests
+    poetry run pytest --cov-report=xml --cov=src -sv tests
 
 [testenv:lint]
 commands =