Update MongoDb tests to support parallel runs

Remove created test collections after unit test run

neon_users_service/databases/mongodb.py

@@ -9,8 +9,8 @@ def __init__(self, db_host: str, db_port: int, db_user: str, db_pass: str,
                  db_name: str = "neon-users", collection_name: str = "users"):
         connection_string = f"mongodb://{db_user}:{db_pass}@{db_host}:{db_port}"
         self.client = MongoClient(connection_string)
-        db = self.client[db_name]
-        self.collection = db[collection_name]
+        self.db = self.client[db_name]
+        self.collection = self.db[collection_name]
 
     def _db_create_user(self, user: User) -> User:
         self.collection.insert_one({**user.model_dump(),

tests/test_databases.py

@@ -117,6 +117,7 @@ def test_delete_user(self):
 
 class TestMongoDb(TestCase):
     test_config = json.loads(environ.get("MONGO_TEST_CONFIG"))
+    test_config['collection_name'] = f"{test_config['collection_name']}{time()}"
     from neon_users_service.databases.mongodb import MongoDbUserDatabase
     database = MongoDbUserDatabase(**test_config)
     test_user = User(username="test_user", password_hash="password")
@@ -127,6 +128,11 @@ def tearDown(self):
         except UserNotFoundError:
             pass
 
+    @classmethod
+    def tearDownClass(cls):
+        cls.database.db.drop_collection(cls.test_config['collection_name'])
+        cls.database.shutdown()
+
     def test_create_user(self):
         # Create User
         user = self.database.create_user(self.test_user)