diff options
Diffstat (limited to 'tensorflow/contrib/data/python/kernel_tests/reduce_dataset_test.py')
-rw-r--r-- | tensorflow/contrib/data/python/kernel_tests/reduce_dataset_test.py | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/tensorflow/contrib/data/python/kernel_tests/reduce_dataset_test.py b/tensorflow/contrib/data/python/kernel_tests/reduce_dataset_test.py new file mode 100644 index 0000000000..e7281d5318 --- /dev/null +++ b/tensorflow/contrib/data/python/kernel_tests/reduce_dataset_test.py @@ -0,0 +1,62 @@ +# 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 the experimental input pipeline ops.""" +from __future__ import absolute_import +from __future__ import division +from __future__ import print_function + +from absl.testing import parameterized +import numpy as np + +from tensorflow.contrib.data.python.ops import get_single_element +from tensorflow.contrib.data.python.ops import grouping +from tensorflow.python.data.kernel_tests import test_base +from tensorflow.python.data.ops import dataset_ops +from tensorflow.python.framework import dtypes +from tensorflow.python.ops import array_ops +from tensorflow.python.platform import test + + +class ReduceDatasetTest(test_base.DatasetTestBase, parameterized.TestCase): + + @parameterized.named_parameters( + ("SumZero", 0), + ("SumOne", 1), + ("SumFive", 5), + ("SumTen", 10), + ) + def testReduceDataset(self, stop): + def init_fn(_): + return np.int64(0) + + def reduce_fn(state, value): + return state + value + + def finalize_fn(state): + return state + + sum_reducer = grouping.Reducer(init_fn, reduce_fn, finalize_fn) + + stop_t = array_ops.placeholder(dtypes.int64, shape=[]) + dataset = dataset_ops.Dataset.range(stop_t) + element = get_single_element.reduce_dataset(dataset, sum_reducer) + + with self.cached_session() as sess: + value = sess.run(element, feed_dict={stop_t: stop}) + self.assertEqual(stop * (stop - 1) / 2, value) + + +if __name__ == "__main__": + test.main() |