Get rid of create_db_and_tables and fix tests to avoid in-memory dbs

api/api.py

@@ -119,7 +119,6 @@ async def lifespan(app: FastAPI):
     galleries.update_gallery_cache()
     spawn_fastchat_controller_subprocess()
     await db.init()  # This now runs Alembic migrations internally
-    # create_db_and_tables() is deprecated - migrations are handled in db.init()
     print("✅ SEED DATA")
     # Initialize experiments
     seed_default_experiments()

api/test/api/conftest.py

@@ -23,8 +23,11 @@
 os.environ["TRANSFORMERLAB_REFRESH_SECRET"] = "test-refresh-secret-for-testing-only"
 os.environ["EMAIL_METHOD"] = "dev"  # Use dev mode for tests (no actual email sending)
 
-# Use in-memory database for tests
-os.environ["DATABASE_URL"] = "sqlite+aiosqlite:///:memory:"
+# Use temporary file-based database for tests (easier to debug than in-memory)
+test_db_dir = os.path.join("test", "tmp", "db")
+os.makedirs(test_db_dir, exist_ok=True)
+test_db_path = os.path.join(test_db_dir, "test_llmlab.sqlite3")
+os.environ["DATABASE_URL"] = f"sqlite+aiosqlite:///{test_db_path}"
 
 from api import app  # noqa: E402
 
@@ -72,13 +75,43 @@ def request(self, method, url, **kwargs):
         return super().request(method, url, **kwargs)
 
 
+@pytest.fixture(scope="session", autouse=True)
+def cleanup_test_db():
+    """Clean up test database file after all tests complete"""
+    yield
+    # Clean up database file and related files (WAL, SHM)
+    test_db_path = os.path.join("test", "tmp", "db", "test_llmlab.sqlite3")
+    for ext in ["", "-wal", "-shm"]:
+        db_file = test_db_path + ext
+        if os.path.exists(db_file):
+            try:
+                os.remove(db_file)
+            except OSError:
+                pass  # Ignore errors if file is locked or already removed
+
+
 @pytest.fixture(scope="session")
 def client():
-    # Initialize database tables for tests
-    from transformerlab.shared.models.user_model import create_db_and_tables  # noqa: E402
+    # Initialize database tables for tests using Alembic migrations (same as production)
+    from transformerlab.db.session import run_alembic_migrations  # noqa: E402
     from transformerlab.services.experiment_init import seed_default_admin_user  # noqa: E402
 
-    asyncio.run(create_db_and_tables())
+    # Ensure test database directory exists
+    test_db_dir = os.path.join("test", "tmp", "db")
+    os.makedirs(test_db_dir, exist_ok=True)
+
+    # Remove existing test database if it exists (start fresh)
+    test_db_path = os.path.join(test_db_dir, "test_llmlab.sqlite3")
+    for ext in ["", "-wal", "-shm"]:
+        db_file = test_db_path + ext
+        if os.path.exists(db_file):
+            try:
+                os.remove(db_file)
+            except OSError:
+                pass
+
+    # Run Alembic migrations to create database schema (matches production)
+    asyncio.run(run_alembic_migrations())
     asyncio.run(seed_default_admin_user())
     controller_log_dir = os.path.join("test", "tmp", "workspace", "logs")
     os.makedirs(controller_log_dir, exist_ok=True)