Marketplace tests update

tests/fixtures/shop_fixtures.py

@@ -10,10 +10,10 @@ from models.database.stock import Stock
 @pytest.fixture
 def test_shop(db, test_user):
     """Create a test shop with unique shop code"""
-    unique_id = str(uuid.uuid4())[:8]  # Short unique identifier
+    unique_id = str(uuid.uuid4())[:8].upper()  # Make unique ID uppercase
     shop = Shop(
-        shop_code=f"TESTSHOP_{unique_id}",
-        shop_name=f"Test Shop {unique_id}",
+        shop_code=f"TESTSHOP_{unique_id}",  # Will be all uppercase
+        shop_name=f"Test Shop {unique_id.lower()}",  # Keep display name readable
         owner_id=test_user.id,
         is_active=True,
         is_verified=True,