def METHOD_NAME(self):
    self.assertEqual(self.image.repotag, 'vmware/tern@sha256:20b32a9a2'
                                         '0752aa1ad7582c667704fda9f004cc4'
                                         'bfd8601fac7f2656c7567bb4')
    self.assertEqual(self.image.name, 'vmware/tern')
    self.assertEqual(self.image.tag, '')
    self.assertTrue(self.image.checksum_type, 'sha256')
    self.assertTrue(self.image.checksum, '20b32a9a20752aa1ad7582c66'
                                         '7704fda9f004cc4bfd8601fac7'
                                         'f2656c7567bb4')
    self.assertFalse(self.image.manifest)
    self.assertFalse(self.image.repotags)
    self.assertFalse(self.image.config)
    self.assertFalse(self.image.layers)
    self.assertFalse(self.image.history)
    # test instantiating with a tag
    d = DockerImage('vmware/tern:testimage')
    self.assertEqual(d.name, 'vmware/tern')
    self.assertEqual(d.tag, 'testimage')
    self.assertFalse(d.checksum_type)
    self.assertFalse(d.checksum)