Add tests for CapsClient

.github/workflows/pytest.yml

@@ -21,9 +21,10 @@ jobs:
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip
-        pip install flake8 pytest pytest-cov
-        if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
+        pip install -r requirements.txt
+        pip install -r requirements-text.txt
     - name: Test with pytest
+      # Tests are intentionally covered to detect broken tests.
       run: |
         pytest --cov=./hippolyzer --cov=./tests --cov-report=xml