| # Copyright 2018 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 GroupByReducer serialization.""" |
| from __future__ import absolute_import |
| from __future__ import division |
| from __future__ import print_function |
| |
| import numpy as np |
| |
| from tensorflow.python.data.experimental.kernel_tests.serialization import dataset_serialization_test_base |
| from tensorflow.python.data.experimental.ops import grouping |
| from tensorflow.python.data.ops import dataset_ops |
| from tensorflow.python.platform import test |
| |
| |
| class GroupByReducerSerializationTest( |
| dataset_serialization_test_base.DatasetSerializationTestBase): |
| |
| def _build_dataset(self, components): |
| reducer = grouping.Reducer( |
| init_func=lambda _: np.int64(0), |
| reduce_func=lambda x, y: x + y, |
| finalize_func=lambda x: x) |
| |
| return dataset_ops.Dataset.from_tensor_slices(components).apply( |
| grouping.group_by_reducer(lambda x: x % 5, reducer)) |
| |
| def testCoreGroupByReducer(self): |
| components = np.array([0, 1, 2, 3, 4, 5, 6, 7, 8, 9], dtype=np.int64) |
| self.verify_unused_iterator( |
| lambda: self._build_dataset(components), 5, verify_exhausted=True) |
| self.verify_init_before_restore( |
| lambda: self._build_dataset(components), 5, verify_exhausted=True) |
| self.verify_multiple_breaks( |
| lambda: self._build_dataset(components), 5, verify_exhausted=True) |
| self.verify_reset_restored_iterator( |
| lambda: self._build_dataset(components), 5, verify_exhausted=True) |
| self.verify_restore_in_empty_graph( |
| lambda: self._build_dataset(components), 5, verify_exhausted=True) |
| diff_components = np.array([5, 4, 3, 2, 1, 0], dtype=np.int64) |
| self.verify_restore_in_modified_graph( |
| lambda: self._build_dataset(components), |
| lambda: self._build_dataset(diff_components), |
| 5, |
| verify_exhausted=True) |
| |
| |
| if __name__ == '__main__': |
| test.main() |