Cleanup test database unit tests

tests/utils/test_database.py

@@ -57,59 +57,33 @@ class MockChannelURL(MockBase):
     updated_at = Column(DateTime, default=lambda: datetime.now(timezone.utc), onupdate=lambda: datetime.now(timezone.utc))
 
 # Create test engine
-TEST_ENGINE = create_engine(
+engine_mock = create_engine(
     "sqlite:///:memory:",
     connect_args={"check_same_thread": False},
     poolclass=StaticPool
 )
 
 # Create test session
-TEST_SESSION = sessionmaker(autocommit=False, autoflush=False, bind=TEST_ENGINE)
+session_mock = sessionmaker(autocommit=False, autoflush=False, bind=engine_mock)
 
 # Mock the actual database functions
 def mock_get_db():
-    db = TEST_SESSION()
+    db = session_mock()
     try:
         yield db
     finally:
         db.close()
 
-@pytest.fixture(scope="session", autouse=True)
-def create_test_tables():
-    """Create test database tables for all tests"""
-    MockBase.metadata.create_all(bind=TEST_ENGINE)
-
-@pytest.fixture(autouse=True)
-def mock_db_engine(monkeypatch):
-    """Fixture to mock database engine and session for each test"""
-    # First mock get_db_credentials to prevent real connection attempts
-    def mock_credentials():
-        return "sqlite:///:memory:"
-    monkeypatch.setattr('app.utils.database.get_db_credentials', mock_credentials)
-    
-    # Then patch the actual database functions
-    monkeypatch.setattr('app.utils.database.engine', TEST_ENGINE)
-    monkeypatch.setattr('app.utils.database.SessionLocal', TEST_SESSION)
-    monkeypatch.setattr('app.utils.database.get_db', mock_get_db)
-
 @pytest.fixture(autouse=True)
 def mock_env(monkeypatch):
     """Fixture for mocking environment variables"""
-    # Clear any existing env vars first
-    monkeypatch.delenv("MOCK_AUTH", raising=False)
-    monkeypatch.delenv("DB_USER", raising=False)
-    monkeypatch.delenv("DB_PASSWORD", raising=False)
-    monkeypatch.delenv("DB_HOST", raising=False)
-    monkeypatch.delenv("DB_NAME", raising=False)
-    
-    # Set mock values
     monkeypatch.setenv("MOCK_AUTH", "true")
     monkeypatch.setenv("DB_USER", "testuser")
     monkeypatch.setenv("DB_PASSWORD", "testpass")
     monkeypatch.setenv("DB_HOST", "localhost")
     monkeypatch.setenv("DB_NAME", "testdb")
-    monkeypatch.setenv("AWS_REGION", "us-east-1")  # Mock AWS region
-
+    monkeypatch.setenv("AWS_REGION", "us-east-1")
+    
 @pytest.fixture
 def mock_ssm():
     """Fixture for mocking boto3 SSM client"""
@@ -135,7 +109,7 @@ def test_get_db_credentials_ssm(mock_ssm):
 
 def test_session_creation():
     """Test database session creation"""
-    session = TEST_SESSION()
+    session = session_mock()
     assert isinstance(session, Session)
     session.close()