text: # Copyright 2017 The TensorFlow Authors. All Rights Reserved.
  #
  # Licensed under the Apache License, Version 2.0 (the "License");
  # you may not use this file except in compliance with the License.
  # You may obtain a copy of the License at
  #
  #     http://www.apache.org/licenses/LICENSE-2.0
  #
  # Unless required by applicable law or agreed to in writing, software
  # distributed under the License is distributed on an "AS IS" BASIS,
  # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  # See the License for the specific language governing permissions and
  # limitations under the License.
  # ==============================================================================
  """Tests for type_check."""
  
  from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  
  import numpy
  
  from tensorflow.python.autograph.utils import type_check
  from tensorflow.python.framework import constant_op
  from tensorflow.python.framework import test_util
  from tensorflow.python.platform import test
  
  
  class TypeCheckTest(test.TestCase):
  
    @test_util.run_deprecated_v1
    def test_checks(self):
      self.assertTrue(type_check.is_tensor(constant_op.constant([1, 2, 3])))
      self.assertTrue(
          type_check.is_tensor(test_util.variables.Variable([1, 2, 3])))
      self.assertTrue(
          type_check.is_tensor(
              test_util.array_ops.placeholder(test_util.dtypes.float32)))
      self.assertFalse(type_check.is_tensor(3))
      self.assertFalse(type_check.is_tensor(numpy.eye(3)))
  
  
  if __name__ == '__main__':
    test.main()
  