def build_fake_data():
  """Build fake CIFAR10-style data for unit testing."""
  num_examples = 10
  x_train = np.random.rand(num_examples, *IMAGE_SHAPE).astype(np.float32)
  y_train = np.random.permutation(np.arange(num_examples)).astype(np.int32)
  x_test = np.random.rand(num_examples, *IMAGE_SHAPE).astype(np.float32)
  y_test = np.random.permutation(np.arange(num_examples)).astype(np.int32)
  return (x_train, y_train), (x_test, y_test)
Build fake CIFAR10-style data for unit testing.