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# Copyright 2018 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 slices module."""
from __future__ import absolute_import
from __future__ import division
from __future__ import print_function
from tensorflow.python.autograph.operators import slices
from tensorflow.python.framework import constant_op
from tensorflow.python.ops import list_ops
from tensorflow.python.platform import test
class SlicesTest(test.TestCase):
def test_set_item_tensor_list(self):
initial_list = constant_op.constant([[1, 2], [3, 4]])
elem_shape = constant_op.constant([2])
l = list_ops.tensor_list_from_tensor(initial_list, element_shape=elem_shape)
l = slices.set_item(l, 0, [5, 6])
with self.cached_session() as sess:
t = list_ops.tensor_list_stack(l, element_dtype=initial_list.dtype)
self.assertAllEqual(sess.run(t), [[5, 6], [3, 4]])
def test_get_item_tensor_list(self):
initial_list = constant_op.constant([[1, 2], [3, 4]])
elem_shape = constant_op.constant([2])
l = list_ops.tensor_list_from_tensor(initial_list, element_shape=elem_shape)
t = slices.get_item(
l, 1, slices.GetItemOpts(element_dtype=initial_list.dtype))
with self.cached_session() as sess:
self.assertAllEqual(sess.run(t), [3, 4])
def test_get_item_tensor_string(self):
initial_str = constant_op.constant('abcd')
t = slices.get_item(initial_str, 1,
slices.GetItemOpts(element_dtype=initial_str.dtype))
with self.cached_session() as sess:
self.assertEqual(sess.run(t), b'b')
initial_list_str = constant_op.constant(['abcd', 'bcde'])
t = slices.get_item(initial_list_str, 1,
slices.GetItemOpts(element_dtype=initial_str.dtype))
with self.cached_session() as sess:
self.assertEqual(sess.run(t), b'bcde')
if __name__ == '__main__':
test.main()
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