def test_numpy_backend_delegation(self):
# Assert that we are getting JAX's numpy backend.
backend = fastmath.backend()
numpy = fastmath.numpy
self.assertEqual(jnp, backend['np'])
# Assert that `numpy` calls the appropriate gin configured functions and
# properties.
self.assertTrue(numpy.isinf(numpy.inf))
self.assertEqual(jnp.isinf, numpy.isinf)
self.assertEqual(jnp.inf, numpy.inf)
# Assert that we will now get the pure numpy backend.
self.override_gin("backend.name = 'numpy'")
backend = fastmath.backend()
numpy = fastmath.numpy
self.assertEqual(onp, backend['np'])
# Assert that `numpy` calls the appropriate gin configured functions and
# properties.
self.assertTrue(numpy.isinf(numpy.inf))
self.assertEqual(onp.isinf, numpy.isinf)
self.assertEqual(onp.inf, numpy.inf)
def test_backend_imports_correctly(self):
backend = fastmath.backend()
self.assertEqual(jnp, backend['np'])
self.assertNotEqual(onp, backend['np'])
self.override_gin("backend.name = 'numpy'")
backend = fastmath.backend()
self.assertNotEqual(jnp, backend['np'])
self.assertEqual(onp, backend['np'])