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Diffstat (limited to 'tensorflow/compiler/tests/reduce_ops_test.py')
-rw-r--r-- | tensorflow/compiler/tests/reduce_ops_test.py | 125 |
1 files changed, 125 insertions, 0 deletions
diff --git a/tensorflow/compiler/tests/reduce_ops_test.py b/tensorflow/compiler/tests/reduce_ops_test.py new file mode 100644 index 0000000000..efda2cc207 --- /dev/null +++ b/tensorflow/compiler/tests/reduce_ops_test.py @@ -0,0 +1,125 @@ +# 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 reduction operators.""" + +from __future__ import absolute_import +from __future__ import division +from __future__ import print_function + +import numpy as np + +from tensorflow.compiler.tests.xla_test import XLATestCase +from tensorflow.python.framework import dtypes +from tensorflow.python.framework import errors_impl +from tensorflow.python.ops import array_ops +from tensorflow.python.ops import math_ops +from tensorflow.python.platform import googletest + + +class ReduceOpsTest(XLATestCase): + + def _testReduction(self, tf_reduce_fn, np_reduce_fn, dtype, test_inputs, + rtol=1e-4, atol=1e-4): + """Tests that the output of 'tf_reduce_fn' matches numpy's output.""" + + for test_input in test_inputs: + with self.test_session() as sess: + with self.test_scope(): + a = array_ops.placeholder(dtype) + index = array_ops.placeholder(dtypes.int32) + out = tf_reduce_fn(a, index) + result = sess.run(out, {a: test_input, index: [0]}) + self.assertAllClose(result, np_reduce_fn(test_input, axis=0), + rtol=rtol, atol=atol) + + result = sess.run(out, {a: test_input, index: [1]}) + self.assertAllClose(result, np_reduce_fn(test_input, axis=1), + rtol=rtol, atol=atol) + + result = sess.run(out, {a: test_input, index: [-1]}) + self.assertAllClose(result, np_reduce_fn(test_input, axis=1), + rtol=rtol, atol=atol) + + with self.assertRaisesWithPredicateMatch( + errors_impl.InvalidArgumentError, 'Invalid reduction dim'): + sess.run(out, {a: test_input, index: [-33]}) + + with self.assertRaisesWithPredicateMatch( + errors_impl.InvalidArgumentError, 'Invalid reduction dim'): + sess.run(out, {a: test_input, index: [2]}) + + FLOAT_DATA = [ + np.zeros(shape=(2, 0)), + np.zeros(shape=(0, 30)), + np.arange(1, 7).reshape(2, 3), + np.arange(-10, -4).reshape(2, 3), + np.arange(-4, 2).reshape(2, 3), + ] + NONEMPTY_FLOAT_DATA = [ + np.arange(1, 7).reshape(2, 3), + np.arange(-10, -4).reshape(2, 3), + np.arange(-4, 2).reshape(2, 3), + ] + BOOL_DATA = [ + np.array([], dtype=np.bool).reshape(2, 0), + np.array([], dtype=np.bool).reshape(0, 3), + np.array([[False, True, False], [True, True, False]]), + ] + + def testReduceSum(self): + self._testReduction(math_ops.reduce_sum, np.sum, np.float32, + self.FLOAT_DATA) + + def testReduceProd(self): + self._testReduction(math_ops.reduce_prod, np.prod, np.float32, + self.FLOAT_DATA) + + def testReduceMin(self): + + def reference_min(inp, axis): + """Wrapper around np.amin that returns +infinity for an empty input.""" + if inp.shape[axis] == 0: + return np.full(inp.shape[0:axis] + inp.shape[axis + 1:], float('inf')) + return np.amin(inp, axis) + + self._testReduction(math_ops.reduce_min, reference_min, np.float32, + self.FLOAT_DATA) + + def testReduceMax(self): + + def reference_max(inp, axis): + """Wrapper around np.amax that returns -infinity for an empty input.""" + if inp.shape[axis] == 0: + return np.full(inp.shape[0:axis] + inp.shape[axis + 1:], float('-inf')) + return np.amax(inp, axis) + + self._testReduction(math_ops.reduce_max, reference_max, np.float32, + self.FLOAT_DATA) + + def testReduceMean(self): + # TODO(phawkins): mean on XLA currently returns 0 instead of NaN when + # reducing across zero inputs. + self._testReduction(math_ops.reduce_mean, np.mean, np.float32, + self.NONEMPTY_FLOAT_DATA) + + def testReduceAll(self): + self._testReduction(math_ops.reduce_all, np.all, np.bool, self.BOOL_DATA) + + def testReduceAny(self): + self._testReduction(math_ops.reduce_any, np.any, np.bool, self.BOOL_DATA) + + +if __name__ == '__main__': + googletest.main() |