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# Copyright 2016 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 string_join_op."""
from __future__ import absolute_import
from __future__ import division
from __future__ import print_function
from tensorflow.python.ops import string_ops
from tensorflow.python.platform import test
class StringJoinOpTest(test.TestCase):
def testStringJoin(self):
input0 = ["a", "b"]
input1 = "a"
input2 = [["b"], ["c"]]
with self.cached_session():
output = string_ops.string_join([input0, input1])
self.assertAllEqual(output.eval(), [b"aa", b"ba"])
output = string_ops.string_join([input0, input1], separator="--")
self.assertAllEqual(output.eval(), [b"a--a", b"b--a"])
output = string_ops.string_join([input0, input1, input0], separator="--")
self.assertAllEqual(output.eval(), [b"a--a--a", b"b--a--b"])
output = string_ops.string_join([input1] * 4, separator="!")
self.assertEqual(output.eval(), b"a!a!a!a")
output = string_ops.string_join([input2] * 2, separator="")
self.assertAllEqual(output.eval(), [[b"bb"], [b"cc"]])
with self.assertRaises(ValueError): # Inconsistent shapes
string_ops.string_join([input0, input2]).eval()
if __name__ == "__main__":
test.main()
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