| # 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 sequence datasets 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.ops import dataset_ops |
| from tensorflow.python.platform import test |
| |
| |
| class SkipDatasetSerializationTest( |
| dataset_serialization_test_base.DatasetSerializationTestBase): |
| |
| def _build_skip_dataset(self, count): |
| components = (np.arange(10),) |
| return dataset_ops.Dataset.from_tensor_slices(components).skip(count) |
| |
| def testSkipFewerThanInputs(self): |
| count = 4 |
| num_outputs = 10 - count |
| self.run_core_tests(lambda: self._build_skip_dataset(count), |
| lambda: self._build_skip_dataset(count + 2), |
| num_outputs) |
| |
| def testSkipVarious(self): |
| # Skip more than inputs |
| self.run_core_tests(lambda: self._build_skip_dataset(20), None, 0) |
| # Skip exactly the input size |
| self.run_core_tests(lambda: self._build_skip_dataset(10), None, 0) |
| self.run_core_tests(lambda: self._build_skip_dataset(-1), None, 0) |
| # Skip nothing |
| self.run_core_tests(lambda: self._build_skip_dataset(0), None, 10) |
| |
| def testInvalidSkip(self): |
| with self.assertRaisesRegexp(ValueError, |
| 'Shape must be rank 0 but is rank 1'): |
| self.run_core_tests(lambda: self._build_skip_dataset([1, 2]), None, 0) |
| |
| |
| class TakeDatasetSerializationTest( |
| dataset_serialization_test_base.DatasetSerializationTestBase): |
| |
| def _build_take_dataset(self, count): |
| components = (np.arange(10),) |
| return dataset_ops.Dataset.from_tensor_slices(components).take(count) |
| |
| def testTakeFewerThanInputs(self): |
| count = 4 |
| self.run_core_tests( |
| lambda: self._build_take_dataset(count), |
| lambda: self._build_take_dataset(count + 2), |
| count, |
| ) |
| |
| def testTakeVarious(self): |
| # Take more than inputs |
| self.run_core_tests(lambda: self._build_take_dataset(20), None, 10) |
| # Take exactly the input size |
| self.run_core_tests(lambda: self._build_take_dataset(10), None, 10) |
| # Take all |
| self.run_core_tests(lambda: self._build_take_dataset(-1), None, 10) |
| # Take nothing |
| self.run_core_tests(lambda: self._build_take_dataset(0), None, 0) |
| |
| def testInvalidTake(self): |
| with self.assertRaisesRegexp(ValueError, |
| 'Shape must be rank 0 but is rank 1'): |
| self.run_core_tests(lambda: self._build_take_dataset([1, 2]), None, 0) |
| |
| |
| class RepeatDatasetSerializationTest( |
| dataset_serialization_test_base.DatasetSerializationTestBase): |
| |
| def _build_repeat_dataset(self, count, take_count=3): |
| components = (np.arange(10),) |
| return dataset_ops.Dataset.from_tensor_slices(components).take( |
| take_count).repeat(count) |
| |
| def testFiniteRepeat(self): |
| count = 10 |
| self.run_core_tests(lambda: self._build_repeat_dataset(count), |
| lambda: self._build_repeat_dataset(count + 2), |
| 3 * count) |
| |
| def testEmptyRepeat(self): |
| self.run_core_tests(lambda: self._build_repeat_dataset(0), None, 0) |
| |
| def testInfiniteRepeat(self): |
| self.verify_unused_iterator( |
| lambda: self._build_repeat_dataset(-1), 10, verify_exhausted=False) |
| self.verify_init_before_restore( |
| lambda: self._build_repeat_dataset(-1), 10, verify_exhausted=False) |
| self.verify_multiple_breaks( |
| lambda: self._build_repeat_dataset(-1), 20, verify_exhausted=False) |
| self.verify_reset_restored_iterator( |
| lambda: self._build_repeat_dataset(-1), 20, verify_exhausted=False) |
| self.verify_restore_in_modified_graph( |
| lambda: self._build_repeat_dataset(-1), |
| lambda: self._build_repeat_dataset(2), |
| 20, |
| verify_exhausted=False) |
| # Test repeat empty dataset |
| self.run_core_tests(lambda: self._build_repeat_dataset(-1, 0), None, 0) |
| |
| def testInvalidRepeat(self): |
| with self.assertRaisesRegexp( |
| ValueError, 'Shape must be rank 0 but is rank 1'): |
| self.run_core_tests(lambda: self._build_repeat_dataset([1, 2], 0), |
| None, 0) |
| |
| |
| if __name__ == '__main__': |
| test.main() |