def test_correct_ncols(self): df = ze.load_binge_drinking_data() assert df.shape[1] == 8
def test_correct_nobs(self): df = ze.load_binge_drinking_data() assert df.shape[0] == 4000
def test_return_pandas(self): df = ze.load_binge_drinking_data() assert isinstance(df, type(pd.DataFrame()))