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# Copyright 2015 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 scalar strictness and scalar leniency."""
from __future__ import absolute_import
from __future__ import division
from __future__ import print_function
import numpy as np
from tensorflow.python.framework import ops
from tensorflow.python.framework import test_util
from tensorflow.python.ops import array_ops
from tensorflow.python.ops import gen_io_ops
from tensorflow.python.ops import math_ops
from tensorflow.python.ops import random_ops
from tensorflow.python.ops import sparse_ops
import tensorflow.python.ops.nn_grad # pylint: disable=unused-import
from tensorflow.python.platform import test
class ScalarTest(test.TestCase):
def check(self, op, args, error, correct=None):
# Within Google, the switch to scalar strict occurred at version 6.
lenient = []
strict = [5, 6]
# Use placeholders to bypass shape inference, since only the C++
# GraphDef level is ever scalar lenient.
def placeholders(args, feed):
if isinstance(args, tuple):
return [placeholders(x, feed) for x in args]
else:
x = ops.convert_to_tensor(args).eval()
fake = array_ops.placeholder(np.asarray(x).dtype)
feed[fake] = x
return fake
# Test various GraphDef versions
for version in strict + lenient:
with ops.Graph().as_default() as g:
test_util.set_producer_version(g, version)
with self.session(graph=g) as sess:
feed = {}
xs = placeholders(args, feed)
x = op(*xs)
if version in strict:
with self.assertRaisesOpError(error):
sess.run(x, feed_dict=feed)
else:
r = sess.run(x, feed_dict=feed)
if correct is not None:
self.assertAllEqual(r, correct)
def testConcat(self):
self.check(array_ops.concat, (([2], [3], [7]), [0]),
'axis tensor should be a scalar integer', [2, 3, 7])
for data in (2, 3, 7), (2, [3], 7), (2, 3, [7]):
self.check(array_ops.concat, (data, 0),
r'Expected \w+ dimensions in the range \[0, 0\)', [2, 3, 7])
for data in ([2], 3, 7), ([2], [3], 7):
self.check(array_ops.concat, (data, 0),
r'Ranks of all input tensors should match', [2, 3, 7])
def testFill(self):
self.check(array_ops.fill, (2, 3), 'dims must be a vector', [3, 3])
self.check(array_ops.fill, ([2], [3]), 'value must be a scalar', [3, 3])
def testPad(self):
self.check(array_ops.pad, (7, [[1, 2]]),
'The first dimension of paddings must be the rank of inputs',
[0, 7, 0, 0])
def testRandom(self):
self.check(random_ops.random_uniform, (3,), 'shape must be a vector')
def testReshape(self):
self.check(array_ops.reshape, (7, 1), 'sizes input must be 1-D', [7])
def testShardedFilename(self):
self.check(gen_io_ops.sharded_filename, ('foo', 4, [100]),
'must be a scalar', b'foo-00004-of-00100')
def testShardedFilespec(self):
self.check(gen_io_ops.sharded_filespec, ('foo', [100]), 'must be a scalar',
b'foo-?????-of-00100')
def testUnsortedSegmentSum(self):
self.check(math_ops.unsorted_segment_sum, (7, 1, [4]),
'num_segments should be a scalar', [0, 7, 0, 0])
def testRange(self):
self.check(math_ops.range, ([0], 3, 2), 'start must be a scalar', [0, 2])
self.check(math_ops.range, (0, [3], 2), 'limit must be a scalar', [0, 2])
self.check(math_ops.range, (0, 3, [2]), 'delta must be a scalar', [0, 2])
def testSlice(self):
data = np.arange(10)
error = 'Expected begin and size arguments to be 1-D tensors'
self.check(array_ops.slice, (data, 2, 3), error, [2, 3, 4])
self.check(array_ops.slice, (data, [2], 3), error, [2, 3, 4])
self.check(array_ops.slice, (data, 2, [3]), error, [2, 3, 4])
def testSparseToDense(self):
self.check(sparse_ops.sparse_to_dense, (1, 4, 7),
'output_shape should be a vector', [0, 7, 0, 0])
def testTile(self):
self.check(array_ops.tile, ([7], 2), 'Expected multiples to be 1-D', [7, 7])
if __name__ == '__main__':
test.main()
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