def METHOD_NAME(self) -> None:
    file_path = 'dummy_folder/dummy_subfolder/dummy_file'
    file_paths = [file_path]
    with self.swap(
        gcs_io.DeleteFile,
        '_delete_file',
        lambda self, file_path: file_path
    ): # pylint: disable=unused-argument
        filepath_p_collec = (
            self.pipeline
            | 'Create pcoll of filepaths' >> beam.Create(file_paths)
            | 'Delete file from GCS' >> gcs_io.DeleteFile()
        )
        self.assert_pcoll_equal(filepath_p_collec, [file_path])