# 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.
# ==============================================================================
"""Basic assertions."""

import tensorflow as tf

from tensorflow.python.autograph.tests import reference_test_base


def simple_assertion(x):
  assert x > 0
  return x


class ReferenceTest(reference_test_base.TestCase):

  def setUp(self):
    super(ReferenceTest, self).setUp()
    self.autograph_opts = tf.autograph.experimental.Feature.ASSERT_STATEMENTS

  def test_basic(self):
    self.assertFunctionMatchesEager(simple_assertion, 1)
    self.assertFunctionMatchesEager(simple_assertion, tf.constant(1))
    with self.assertRaises(AssertionError):
      self.function(simple_assertion)(0)
    with self.assertRaises(tf.errors.InvalidArgumentError):
      self.function(simple_assertion)(tf.constant(0))


if __name__ == '__main__':
  tf.test.main()