Admin service tests update

tests/fixtures/testing_fixtures.py

@@ -0,0 +1,54 @@
+# tests/fixtures/testing_fixtures.py
+"""
+Testing utility fixtures for edge cases and error handling.
+
+This module provides fixtures for:
+- Empty database sessions for edge case testing
+- Mock database sessions for error simulation
+- Additional testing utilities
+"""
+
+import pytest
+from unittest.mock import Mock
+from sqlalchemy.exc import SQLAlchemyError
+
+
+@pytest.fixture
+def empty_db(db):
+    """Empty database session for edge case testing"""
+    from sqlalchemy import text
+
+    # Clear only the tables that are relevant for admin service testing
+    # In order to respect foreign key constraints
+    tables_to_clear = [
+        "marketplace_import_jobs",  # Has foreign keys to shops and users
+        "shop_products",  # Has foreign keys to shops and products
+        "stock",  # Fixed: singular not plural
+        "products",  # Referenced by shop_products
+        "shops",  # Has foreign key to users
+        "users"  # Base table
+    ]
+
+    for table in tables_to_clear:
+        try:
+            db.execute(text(f"DELETE FROM {table}"))
+        except Exception:
+            # If table doesn't exist or delete fails, continue
+            pass
+
+    db.commit()
+    return db
+
+
+@pytest.fixture
+def db_with_error():
+    """Database session that raises errors for testing error handling"""
+    mock_db = Mock()
+
+    # Configure the mock to raise SQLAlchemy errors on query operations
+    mock_db.query.side_effect = SQLAlchemyError("Database connection failed")
+    mock_db.add.side_effect = SQLAlchemyError("Database insert failed")
+    mock_db.commit.side_effect = SQLAlchemyError("Database commit failed")
+    mock_db.rollback.return_value = None
+
+    return mock_db