old_contents: """ Tests for Imagewang contains Imagenette and Imagewoof combined. """
  
  from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  
  from tensorflow_datasets import testing
  from tensorflow_datasets.image import imagewang
  
  
  class ImagewangTest(testing.DatasetBuilderTestCase):
    DATASET_CLASS = imagewang.Imagewang
    SPLITS = {
        "train": 4,  # Number of fake train example
        "test": 4,  # Number of fake test example
    }
  
  if __name__ == "__main__":
    testing.test_main()
  
new_contents: """ Tests for Imagewang contains Imagenette and Imagewoof combined. """
  
  from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  
  from tensorflow_datasets import testing
  from tensorflow_datasets.image import imagewang
  
  
  class ImagewangFullSizeTest(testing.DatasetBuilderTestCase):
    DATASET_CLASS = imagewang.Imagewang
    BUILDER_CONFIG_NAMES_TO_TEST = ['full-size']
    SPLITS = {
        "train": 4,
        "test": 4,
    }
  
  
  class Imagewang320Test(testing.DatasetBuilderTestCase):
    DATASET_CLASS = imagewang.Imagewang
    BUILDER_CONFIG_NAMES_TO_TEST = ['320px']
    SPLITS = {
        "train": 4,
        "test": 4,
    }
  
  
  class Imagewang160Test(testing.DatasetBuilderTestCase):
    DATASET_CLASS = imagewang.Imagewang
    BUILDER_CONFIG_NAMES_TO_TEST = ['160px']
    SPLITS = {
        "train": 4,
        "test": 4,
    }
  
  
  if __name__ == "__main__":
    testing.test_main()
  
subject: add additional tests