def test_get_model_metadata_method(self):
        """Testing get_model_metadata method."""
        # arrange
        model_manager = ModelManager()

        model_manager.load_model("tests.mocks.MLModelMock")

        # act
        model_metadata = model_manager.get_model_metadata(
            qualified_name="qualified_name")

        # assert
        self.assertTrue(model_metadata["display_name"] == "display_name")
        self.assertTrue(model_metadata["qualified_name"] == "qualified_name")
        self.assertTrue(model_metadata["description"] == "description")
        self.assertTrue(model_metadata["version"] == "1.0.0")
        self.assertTrue(type(model_metadata["input_schema"]) is dict)
        self.assertTrue(type(model_metadata["output_schema"]) is dict)
    def test_get_model_metadata_method_with_missing_model(self):
        """Testing get_model_metadata method with missing model."""
        # arrange
        model_manager = ModelManager()

        model_manager.load_model("tests.mocks.MLModelMock")

        # act
        excpeption_raised = False
        exception_message = None
        try:
            model_metadata = model_manager.get_model_metadata(
                qualified_name="asdf")
        except Exception as e:
            excpeption_raised = True
            exception_message = str(e)

        # assert
        self.assertTrue(excpeption_raised)
        self.assertTrue(exception_message ==
                        "Instance of model 'asdf' not found in ModelManager.")