def test_remove_null_rows_min_negative_unchanged(self):
df = pd.DataFrame([[0, 1, -2], [1, 2, 3], [0, 0, 0], [4, 5, 6]])
df2 = preprocess.remove_null_rows(df)
self.assertEqual(4, df2.shape[0], "wrong number of rows")
def test_remove_null_rows_min_0_remove_ok(self):
df = pd.DataFrame([[0, 1, 2], [1, 2, 3], [0, 0, 0], [4, 5, 6]])
df2 = preprocess.remove_null_rows(df)
self.assertEqual(3, df2.shape[0], "wrong number of rows")