def test_split_into_x_and_y_is_not_a_valid_dataframe(self):
    temp_dict = {'x': [i for i in range(200)]}
    df = pd.DataFrame.from_dict(temp_dict)
    with self.assertRaises(TypeError):
        splitter = SplitterReturner()
        (_, _) = splitter.split_x_y_from_df(df)
def test_split_into_x_and_y_is_not_a_valid_dataframe(self):
    temp_dict = {'x': [i for i in range(200)]}
    df = pd.DataFrame.from_dict(temp_dict)
    with self.assertRaises(TypeError):
        splitter = SplitterReturner()
        (_, _) = splitter.split_x_y_from_df(df)