def run_save_plural_remove(self, input_string, expected_string, source_string=None):
        path, resource = self.parse_string(input_string, source_string=source_string)

        translation = resource.translations[0]
        translation.strings[0] = 'New Plural'
        del translation.strings[1]
        resource.save(self.locale)

        self.assert_file_content(path, expected_string)
Any missing plurals should be set to an empty string in the
dataset/ETHPy150Open mozilla/pontoon/pontoon/sync/tests/formats/__init__.py/FormatTestsMixin.run_save_plural_remove