def test_load_images(self, mock_listdir):
mock_listdir.return_value = ["test.txt", "test2.jpg"]
directory = "/home/test/"
returned_images = Controller.load_image_list(directory)
self.assertListEqual(["test2.jpg"], returned_images)
def test_load_images_with_wrong_filetype(self, mock_listdir):
mock_listdir.return_value = ["test.txt", "test2"]
returned_images = Controller.load_image_list("/home/test/")
self.assertListEqual([], returned_images)