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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.
# ==============================================================================
"""Test cases for ternary operators."""
from __future__ import absolute_import
from __future__ import division
from __future__ import print_function
import numpy as np
from tensorflow.compiler.tests import xla_test
from tensorflow.python.framework import dtypes
from tensorflow.python.ops import array_ops
from tensorflow.python.ops import gen_math_ops
from tensorflow.python.ops import math_ops
from tensorflow.python.platform import googletest
class TernaryOpsTest(xla_test.XLATestCase):
def _testTernary(self, op, a, b, c, expected):
with self.cached_session() as session:
with self.test_scope():
pa = array_ops.placeholder(dtypes.as_dtype(a.dtype), a.shape, name="a")
pb = array_ops.placeholder(dtypes.as_dtype(b.dtype), b.shape, name="b")
pc = array_ops.placeholder(dtypes.as_dtype(c.dtype), c.shape, name="c")
output = op(pa, pb, pc)
result = session.run(output, {pa: a, pb: b, pc: c})
self.assertAllClose(result, expected, rtol=1e-3)
def testLinspace(self):
self._testTernary(
math_ops.linspace,
np.float32(1),
np.float32(2),
np.int32(1),
expected=np.array([1], dtype=np.float32))
self._testTernary(
math_ops.linspace,
np.float32(1),
np.float32(4),
np.int32(3),
expected=np.array([1, 2.5, 4], dtype=np.float32))
def testRange(self):
self._testTernary(
math_ops.range,
np.int32(1),
np.int32(2),
np.int32(1),
expected=np.array([1], dtype=np.int32))
self._testTernary(
math_ops.range,
np.int32(1),
np.int32(7),
np.int32(2),
expected=np.array([1, 3, 5], dtype=np.int32))
def testSelect(self):
for dtype in self.numeric_types:
self._testTernary(
array_ops.where,
np.array(0, dtype=np.bool),
np.array(2, dtype=dtype),
np.array(7, dtype=dtype),
expected=np.array(7, dtype=dtype))
self._testTernary(
array_ops.where,
np.array(1, dtype=np.bool),
np.array([1, 2, 3, 4], dtype=dtype),
np.array([5, 6, 7, 8], dtype=dtype),
expected=np.array([1, 2, 3, 4], dtype=dtype))
self._testTernary(
array_ops.where,
np.array(0, dtype=np.bool),
np.array([[1, 2], [3, 4], [5, 6]], dtype=dtype),
np.array([[7, 8], [9, 10], [11, 12]], dtype=dtype),
expected=np.array([[7, 8], [9, 10], [11, 12]], dtype=dtype))
self._testTernary(
array_ops.where,
np.array([0, 1, 1, 0], dtype=np.bool),
np.array([1, 2, 3, 4], dtype=dtype),
np.array([5, 6, 7, 8], dtype=dtype),
expected=np.array([5, 2, 3, 8], dtype=dtype))
self._testTernary(
array_ops.where,
np.array([0, 1, 0], dtype=np.bool),
np.array([[1, 2], [3, 4], [5, 6]], dtype=dtype),
np.array([[7, 8], [9, 10], [11, 12]], dtype=dtype),
expected=np.array([[7, 8], [3, 4], [11, 12]], dtype=dtype))
def testSlice(self):
for dtype in self.numeric_types:
self._testTernary(
array_ops.slice,
np.array([[], [], []], dtype=dtype),
np.array([1, 0], dtype=np.int32),
np.array([2, 0], dtype=np.int32),
expected=np.array([[], []], dtype=dtype))
self._testTernary(
array_ops.slice,
np.array([[1, 2, 3], [4, 5, 6], [7, 8, 9]], dtype=dtype),
np.array([0, 1], dtype=np.int32),
np.array([2, 1], dtype=np.int32),
expected=np.array([[2], [5]], dtype=dtype))
def testClipByValue(self):
for dtype in self.numeric_types - self.complex_types:
test_cases = [
(np.array([2, 4, 5], dtype=dtype), dtype(7)), #
(dtype(1), np.array([2, 4, 5], dtype=dtype)), #
(np.array([-2, 7, 7], dtype=dtype), np.array([-2, 9, 8], dtype=dtype))
]
x = np.array([-2, 10, 6], dtype=dtype)
for lower, upper in test_cases:
self._testTernary(
gen_math_ops._clip_by_value,
x,
lower,
upper,
expected=np.minimum(np.maximum(x, lower), upper))
if __name__ == "__main__":
googletest.main()
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