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88 lines
3.0 KiB
Python
88 lines
3.0 KiB
Python
# Copyright 2024 The JAX Authors.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# https://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from absl.testing import absltest
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import jax
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from jax._src import config
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from jax._src import test_util as jtu
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from jax._src.cloud_tpu_init import cloud_tpu_init
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jax.config.parse_flags_with_absl()
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jax_test_enum_config = config.enum_state(
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name='jax_test_enum_config',
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enum_values=['default', 'xxx', 'yyy'],
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default='default',
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help='Configuration only used for tests.',
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)
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class ConfigTest(jtu.JaxTestCase):
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def test_config_setting_via_update(self):
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self.assertEqual(jax_test_enum_config.value, 'default')
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jax.config.update('jax_test_enum_config', 'xxx')
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self.assertEqual(jax_test_enum_config.value, 'xxx')
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jax.config.update('jax_test_enum_config', 'yyy')
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self.assertEqual(jax_test_enum_config.value, 'yyy')
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jax.config.update('jax_test_enum_config', 'default')
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self.assertEqual(jax_test_enum_config.value, 'default')
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def test_config_setting_via_context(self):
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self.assertEqual(jax_test_enum_config.value, 'default')
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with jax_test_enum_config('xxx'):
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self.assertEqual(jax_test_enum_config.value, 'xxx')
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with jax_test_enum_config('yyy'):
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self.assertEqual(jax_test_enum_config.value, 'yyy')
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self.assertEqual(jax_test_enum_config.value, 'xxx')
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self.assertEqual(jax_test_enum_config.value, 'default')
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def test_config_update_validation(self):
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self.assertEqual(jax_test_enum_config.value, 'default')
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with self.assertRaisesRegex(ValueError, 'new enum value must be in.*'):
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jax.config.update('jax_test_enum_config', 'invalid')
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# Error should raise before changing the value
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self.assertEqual(jax_test_enum_config.value, 'default')
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def test_config_context_validation(self):
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self.assertEqual(jax_test_enum_config.value, 'default')
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with self.assertRaisesRegex(ValueError, 'new enum value must be in.*'):
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with jax_test_enum_config('invalid'):
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pass
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self.assertEqual(jax_test_enum_config.value, 'default')
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def test_cloud_tpu_init(self):
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if not jtu.is_cloud_tpu():
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self.skipTest('Not running on a Cloud TPU VM.')
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# Context manager resets the jax_platforms config to its original value.
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with jtu.global_config_context(jax_platforms=None):
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cloud_tpu_init()
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self.assertEqual(config.jax_platforms.value, 'tpu,cpu')
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with jtu.global_config_context(jax_platforms='platform_A'):
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cloud_tpu_init()
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self.assertEqual(config.jax_platforms.value, 'platform_A')
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if __name__ == '__main__':
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absltest.main(testLoader=jtu.JaxTestLoader())
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