def METHOD_NAME(self):
    """Test that to_dataframe returns empty dataframe when records is empty"""
    # Arrange
    records = []
    colunms = ["a", "b", "c"]
    # Act
    df = self.service.to_dataframe(records, colunms)
    # Assert
    self.assertEqual(df.shape, (0, 3))
    self.assertEqual(df["a"].tolist(), [])
    self.assertEqual(df["b"].tolist(), [])
    self.assertEqual(df["c"].tolist(), [])