import tensorflow as tf

  def test_images_and_additional_channels_errors(self):
    input_tensor_dict = {
        fields.InputDataFields.image:
            tf.placeholder(tf.float32, [None, None, 3]),
        fields.InputDataFields.image_additional_channels:
            tf.placeholder(tf.float32, [None, None, 2]),
        fields.InputDataFields.original_image:
            tf.placeholder(tf.float32, [None, None, 3]),
    }
    with self.assertRaises(ValueError):
