def testEventNdimsMustBeZeroOrRaiseDynamic(self):
with self.test_session() as sess:
event_ndims = array_ops.placeholder(dtypes.int32)
abs_bijector = AbsoluteValue(event_ndims=event_ndims, validate_args=True)
with self.assertRaisesOpError("event_ndims was not 0"):
sess.run(abs_bijector.inverse_log_det_jacobian([1.]),
feed_dict={event_ndims: 1})
def testEventNdimsMustBeZeroOrRaiseDynamic(self):
with self.test_session() as sess:
event_ndims = array_ops.placeholder(dtypes.int32)
abs_bijector = AbsoluteValue(event_ndims=event_ndims,
validate_args=True)
with self.assertRaisesOpError("event_ndims was not 0"):
sess.run(abs_bijector.inverse_log_det_jacobian([1.]),
feed_dict={event_ndims: 1})
def testBijectorVersusNumpyRewriteOfBasicFunctionsEventNdims0(self):
with self.test_session() as sess:
bijector = AbsoluteValue(event_ndims=0, validate_args=True)
self.assertEqual("absolute_value", bijector.name)
x = array_ops.constant([[0., 1., -1], [0., -5.,
3.]]) # Shape [2, 3]
y = math_ops.abs(x)
y_ = y.eval()
zeros = np.zeros((2, 3))
self.assertAllClose(y_, bijector.forward(x).eval())
self.assertAllClose((-y_, y_), sess.run(bijector.inverse(y)))
self.assertAllClose((zeros, zeros),
sess.run(bijector.inverse_log_det_jacobian(y)))
# Run things twice to make sure there are no issues in caching the tuples
# returned by .inverse*
self.assertAllClose(y_, bijector.forward(x).eval())
self.assertAllClose((-y_, y_), sess.run(bijector.inverse(y)))
self.assertAllClose((zeros, zeros),
sess.run(bijector.inverse_log_det_jacobian(y)))
def testBijectorVersusNumpyRewriteOfBasicFunctionsEventNdims0(self):
with self.test_session() as sess:
bijector = AbsoluteValue(event_ndims=0, validate_args=True)
self.assertEqual("absolute_value", bijector.name)
x = array_ops.constant([[0., 1., -1], [0., -5., 3.]]) # Shape [2, 3]
y = math_ops.abs(x)
y_ = y.eval()
zeros = np.zeros((2, 3))
self.assertAllClose(y_, bijector.forward(x).eval())
self.assertAllClose((-y_, y_), sess.run(bijector.inverse(y)))
self.assertAllClose((zeros, zeros),
sess.run(bijector.inverse_log_det_jacobian(y)))
# Run things twice to make sure there are no issues in caching the tuples
# returned by .inverse*
self.assertAllClose(y_, bijector.forward(x).eval())
self.assertAllClose((-y_, y_), sess.run(bijector.inverse(y)))
self.assertAllClose((zeros, zeros),
sess.run(bijector.inverse_log_det_jacobian(y)))
def testEventNdimsMustBeZeroOrRaiseStatic(self):
with self.test_session():
with self.assertRaisesRegexp(ValueError, "event_ndims.*was not 0"):
AbsoluteValue(event_ndims=1)
def testNegativeYRaisesForILDJIfValidateArgs(self):
with self.test_session() as sess:
bijector = AbsoluteValue(validate_args=True)
with self.assertRaisesOpError("y was negative"):
sess.run(bijector.inverse_log_det_jacobian(-1., event_ndims=0))
def testNegativeYRaisesForInverseIfValidateArgs(self):
with self.test_session() as sess:
bijector = AbsoluteValue(validate_args=True)
with self.assertRaisesOpError("y was negative"):
sess.run(bijector.inverse(-1.))
def testNegativeYRaisesForILDJIfValidateArgs(self):
with self.test_session() as sess:
bijector = AbsoluteValue(validate_args=True)
with self.assertRaisesOpError("y was negative"):
sess.run(bijector.inverse_log_det_jacobian(-1., event_ndims=0))
def testNegativeYRaisesForInverseIfValidateArgs(self):
with self.test_session() as sess:
bijector = AbsoluteValue(validate_args=True)
with self.assertRaisesOpError("y was negative"):
sess.run(bijector.inverse(-1.))