Fix preparations for testing of API.

.github/workflows/pytest.yml

@@ -7,6 +7,21 @@ jobs:
     runs-on: ubuntu-latest
     timeout-minutes: 10
 
+    services:
+      postgres:
+        image: postgres:latest
+        env:
+          POSTGRES_USER: postgres
+          POSTGRES_PASSWORD: postgres
+          POSTGRES_DB: test_db
+        ports:
+          - 5432:5432
+        options: >-
+          --health-cmd "pg_isready -U postgres"
+          --health-interval 10s
+          --health-timeout 5s
+          --health-retries 5
+
     steps:
       - name: Check out repository code
         uses: actions/checkout@v2
@@ -31,5 +46,7 @@ jobs:
         run: |
           poetry install
       - name: Run test suite
+        env:
+          TEST_DATABASE_URL: postgres://postgres:postgres@localhost:5432/test_db
         run: |
           poetry run pytest -v

rhinventory/service/test_common.py

@@ -1,5 +1,6 @@
+from sqlalchemy import text
 
 
-def test_db_running(db_session):
+def test_db_running(test_db_session):
     """Test whether testing DB is running."""
-    assert db_session.execute('SELECT 1')
+    assert test_db_session.execute(text('SELECT 1'))