♻️ Refactor code structure for tests (#674)

backend/app/tests/api/routes/test_celery.py

@@ -0,0 +1,16 @@
+from fastapi.testclient import TestClient
+
+from app.core.config import settings
+
+
+def test_celery_worker_test(
+    client: TestClient, superuser_token_headers: dict[str, str]
+) -> None:
+    data = {"message": "test"}
+    r = client.post(
+        f"{settings.API_V1_STR}/utils/test-celery/",
+        json=data,
+        headers=superuser_token_headers,
+    )
+    response = r.json()
+    assert response["message"] == "Word received"