def test_is_header_valid_allows_extra_columns(self):
"""Allow and ignore extra columns in the header."""
columns = CsvImporter.REQUIRED_COLUMNS
self.assertTrue(CsvImporter.is_header_valid(columns))
self.assertTrue(CsvImporter.is_header_valid(columns | {'foo', 'bar'}))
def test_is_header_valid_does_not_depend_on_column_order(self):
"""Allow columns to appear in any order."""
# sorting changes the order of the columns
columns = sorted(CsvImporter.REQUIRED_COLUMNS)
self.assertTrue(CsvImporter.is_header_valid(columns))