message: TST: add empty dict
diff: @@ -314,6 +314,32 @@ class NumpyIoTest(test.TestCase):
  coord.request_stop()
  coord.join(threads)
  + def testNumpyInputFnWhenLabelIsEmptyDictionary(self):
  + a = np.arange(4) * 1.0
  + b = np.arange(32, 36)
  + x = {'a': a, 'b': b}
  + y = {}
  +
  + with self.test_session() as session:
  + input_fn = numpy_io.numpy_input_fn(
  + x, y, batch_size=2, shuffle=False, num_epochs=1)
  + features_tensor = input_fn()
  +
  + coord = coordinator.Coordinator()
  + threads = queue_runner_impl.start_queue_runners(session, coord=coord)
  +
  + features = session.run([features_tensor])
  + self.assertEqual(len(features), 2)
  + self.assertAllEqual(features['a'], [0, 1])
  + self.assertAllEqual(features['b'], [32, 33])
  +
  + session.run([features_tensor])
  + with self.assertRaises(errors.OutOfRangeError):
  + session.run([features_tensor])
  +
  + coord.request_stop()
  + coord.join(threads)
  +
  def testNumpyInputFnWithDuplicateKeysInXandY(self):
  a = np.arange(4) * 1.0
  b = np.arange(32, 36)
  