feat: refactor project

backend/tests/conftest.py

@@ -0,0 +1,30 @@
+"""Shared test fixtures."""
+
+from unittest.mock import MagicMock
+
+import pytest
+from fastapi.testclient import TestClient
+from sqlalchemy.orm import Session
+
+from app.database import get_db
+from app.main import app
+
+
+@pytest.fixture()
+def db_session():
+    """Provide a mocked database session."""
+    session = MagicMock(spec=Session)
+    return session
+
+
+@pytest.fixture()
+def client(db_session):
+    """Provide a FastAPI test client with mocked DB."""
+
+    def _override_get_db():
+        yield db_session
+
+    app.dependency_overrides[get_db] = _override_get_db
+    with TestClient(app) as c:
+        yield c
+    app.dependency_overrides.clear()