def create_test_content(self, bucket_name, object_prefix, num_files):
    """Create a file in Google Cloud Storage with a small amount of content.

    Args:
      bucket_name: the name of the bucket, with no delimiters.
      object_prefix: a string prefix for each object/file that will be created.
        A suffix with a file number will automatically be appended.
      num_files: the number of files to create.

    Returns:
      A list with each element containing the data in one of the created files.
    """
    created_content = []
    for file_num in range(num_files):
      content = "Dummy Content %d" % file_num
      created_content.append(content)
      test_file = cloudstorage.open(
          (bucket_name, object_prefix, file_num) % "/%s/%s%03d",
          mode="w")
      test_file.write(content)
      test_file.close()
    return created_content
dataset/ETHPy150Open GoogleCloudPlatform/appengine-mapreduce/python/test/mapreduce/input_readers_end_to_end_test.py/GoogleCloudStorageInputReaderEndToEndTest.create_test_content/swapped operands of `%`