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94 lines
2.6 KiB
Python
94 lines
2.6 KiB
Python
# Copyright 2020 Google LLC
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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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from absl.testing import parameterized
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from jax import test_util as jtu
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from jax.experimental.callback import find_by_value, rewrite, FoundValue
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import jax.numpy as jnp
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from jax import lax
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from jax import jit
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from jax.config import config
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config.parse_flags_with_absl()
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class CallbackTest(jtu.JaxTestCase):
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@parameterized.named_parameters(jtu.cases_from_list(
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{'testcase_name': '_value={}'.format(value), 'value': value}
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for value in [jnp.inf, jnp.nan]))
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def testFindByValueFound(self, value):
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def f(x):
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y = x ** 2
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z = 1 - y
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r = 1 / z
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return r * 0
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with self.assertRaises(FoundValue):
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find_by_value(f, value)(jnp.array([1.0, 2.0, 3.0]))
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@parameterized.named_parameters(jtu.cases_from_list(
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{'testcase_name': '_value={}'.format(value), 'value': value}
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for value in [jnp.inf, jnp.nan]))
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def testFindByValueFoundJIT(self, value):
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def f(x):
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@jit
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def g(x):
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y = x ** 2
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z = 1 - y
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r = 1 / z
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return r * 0
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return g(x)
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with self.assertRaises(FoundValue):
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find_by_value(f, value)(jnp.array([1.0, 2.0, 3.0]))
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@parameterized.named_parameters(jtu.cases_from_list(
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{'testcase_name': '_value={}'.format(value), 'value': value}
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for value in [jnp.inf, jnp.nan]))
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def testFindByValueNotFound(self, value):
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def f(x):
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y = x ** 2
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z = 1 - y
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return z
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find_by_value(f, value)(jnp.array([1.0, 2.0, 3.0]))
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def testRewrite(self):
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def f(x):
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return x * 2
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x = jnp.array([2.0, 4.0])
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self.assertAllClose(f(x), jnp.array([4.0, 8.0]))
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self.assertAllClose(
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rewrite(f, {lax.mul_p: lambda x, y: x + y})(x),
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jnp.array([4.0, 6.0]))
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def testRewriteJIT(self):
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def f(x):
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@jit
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def g(x):
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return x * 2
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return g(x)
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x = jnp.array([2.0, 4.0])
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self.assertAllClose(f(x), jnp.array([4.0, 8.0]))
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self.assertAllClose(
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rewrite(f, {lax.mul_p: lambda x, y: x + y})(x),
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jnp.array([4.0, 6.0]))
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if __name__ == "__main__":
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absltest.main(testLoader=jtu.JaxTestLoader())
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