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0ff234049b
These docstrings do not make the tests any more clear and typically just duplicate the test module name. PiperOrigin-RevId: 737611977
52 lines
1.5 KiB
Python
52 lines
1.5 KiB
Python
# Copyright 2022 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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import jax.numpy as jnp
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from jax._src.lax.stack import Stack
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from jax._src import test_util as jtu
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jax.config.parse_flags_with_absl()
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class StackTest(jtu.JaxTestCase):
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def test_empty(self):
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stack = Stack.create(7, jnp.zeros((), jnp.int32))
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self.assertTrue(stack.empty())
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def test_pushes_and_pops(self):
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stack = Stack.create(7, jnp.zeros((), jnp.int32))
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stack = stack.push(jnp.int32(7))
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self.assertFalse(stack.empty())
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stack = stack.push(jnp.int32(8))
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self.assertFalse(stack.empty())
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x, stack = stack.pop()
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self.assertFalse(stack.empty())
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self.assertEqual(8, x)
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stack = stack.push(jnp.int32(9))
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x, stack = stack.pop()
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self.assertFalse(stack.empty())
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self.assertEqual(9, x)
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x, stack = stack.pop()
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self.assertTrue(stack.empty())
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self.assertEqual(7, x)
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if __name__ == '__main__':
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absltest.main(testLoader=jtu.JaxTestLoader())
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