Update test for missing FQ_CONFIG env var to check for default config usage and warning output

Author: ochui

tests/test_routes.py

@@ -18,21 +18,32 @@ class FQConfigTestCase(unittest.TestCase):
     """Tests for configuration validation."""
 
     def test_missing_fq_config_env_var(self):
-        """Test that missing FQ_CONFIG environment variable raises an error."""
+        """Test that missing FQ_CONFIG environment variable uses default config."""
         # Ensure FQ_CONFIG is not set
         env_backup = os.environ.pop("FQ_CONFIG", None)
         try:
-            with self.assertRaises(EnvironmentError) as context:
-                # Re-import asgi module to trigger the check
-                import importlib
-                import asgi
-
-                importlib.reload(asgi)
-            self.assertIn("FQ_CONFIG", str(context.exception))
+            # Capture stdout to verify warning message
+            from io import StringIO
+            import sys
+            captured_output = StringIO()
+            sys.stdout = captured_output
+            
+            # Re-import asgi module to trigger the check
+            import importlib
+            import asgi
+            importlib.reload(asgi)
+            
+            sys.stdout = sys.__stdout__
+            
+            # Verify warning was printed
+            output = captured_output.getvalue()
+            self.assertIn("FQ_CONFIG", output)
+            self.assertIn("default config path", output)
         finally:
             # Restore the environment variable if it was set
             if env_backup is not None:
                 os.environ["FQ_CONFIG"] = env_backup
+            sys.stdout = sys.__stdout__
 
     def test_config_file_not_found(self):
         """Test that non-existent config file raises FileNotFoundError."""