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# 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 builtins module."""
from __future__ import absolute_import
from __future__ import division
from __future__ import print_function
import sys
import six
from tensorflow.contrib.autograph.utils import builtins
from tensorflow.python.framework import constant_op
from tensorflow.python.framework import dtypes
from tensorflow.python.platform import test
class BuiltinsTest(test.TestCase):
def test_dynamic_len_tf_scalar(self):
a = constant_op.constant(1)
with self.assertRaises(ValueError):
with self.test_session() as sess:
sess.run(builtins.dynamic_builtin(len, a))
def test_dynamic_len_tf_array(self):
a = constant_op.constant([1, 2, 3])
with self.test_session() as sess:
self.assertEqual(3, sess.run(builtins.dynamic_builtin(len, a)))
def test_dynamic_len_tf_matrix(self):
a = constant_op.constant([[1, 2], [3, 4]])
with self.test_session() as sess:
self.assertEqual(2, sess.run(builtins.dynamic_builtin(len, a)))
def test_dynamic_len_py_list(self):
a = [3] * 5
self.assertEqual(5, builtins.dynamic_builtin(len, a))
def test_dynamic_range_all_python(self):
self.assertListEqual(list(builtins.dynamic_builtin(range, 3)), [0, 1, 2])
self.assertListEqual(list(builtins.dynamic_builtin(range, 1, 3)), [1, 2])
self.assertListEqual(
list(builtins.dynamic_builtin(range, 2, 0, -1)), [2, 1])
def test_dynamic_range_tf(self):
with self.test_session() as sess:
self.assertAllEqual(
sess.run(builtins.dynamic_builtin(range, constant_op.constant(3))),
[0, 1, 2])
self.assertAllEqual(
sess.run(builtins.dynamic_builtin(range, 1, constant_op.constant(3))),
[1, 2])
self.assertAllEqual(
sess.run(
builtins.dynamic_builtin(range, 2, 0, constant_op.constant(-1))),
[2, 1])
def test_dynamic_range_detection(self):
def range(x): # pylint:disable=redefined-builtin
return x
# Functions that just have the names of builtins are rejected.
with self.assertRaises(NotImplementedError):
self.assertEqual(builtins.dynamic_builtin(range, 1), 1)
if six.PY2:
self.assertListEqual(
list(builtins.dynamic_builtin(xrange, 3)), [0, 1, 2])
self.assertListEqual(
list(builtins.dynamic_builtin(six.moves.range, 3)), [0, 1, 2])
self.assertListEqual(
list(builtins.dynamic_builtin(six.moves.xrange, 3)), [0, 1, 2])
def test_casts(self):
i = constant_op.constant(2, dtype=dtypes.int32)
f = constant_op.constant(1.0, dtype=dtypes.float32)
self.assertEqual(builtins.dynamic_builtin(int, i).dtype, dtypes.int32)
self.assertEqual(builtins.dynamic_builtin(int, f).dtype, dtypes.int32)
self.assertEqual(builtins.dynamic_builtin(float, i).dtype, dtypes.float32)
self.assertEqual(builtins.dynamic_builtin(float, f).dtype, dtypes.float32)
self.assertEqual(builtins.dynamic_builtin(int, True), 1)
self.assertEqual(builtins.dynamic_builtin(int, False), 0)
self.assertEqual(builtins.dynamic_builtin(float, True), 1.0)
self.assertEqual(builtins.dynamic_builtin(float, False), 0.0)
def test_dynamic_print_tf(self):
try:
out_capturer = six.StringIO()
sys.stdout = out_capturer
with self.test_session() as sess:
sess.run(builtins.dynamic_print('test message', 1))
self.assertEqual(out_capturer.getvalue(), 'test message 1\n')
finally:
sys.stdout = sys.__stdout__
def test_dynamic_print_complex(self):
try:
out_capturer = six.StringIO()
sys.stdout = out_capturer
with self.test_session() as sess:
sess.run(builtins.dynamic_print('test message', [1, 2]))
self.assertEqual(out_capturer.getvalue(), 'test message [1, 2]\n')
finally:
sys.stdout = sys.__stdout__
if __name__ == '__main__':
test.main()
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