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Paddle/python/paddle/fluid/tests/unittests/test_prelu_op.py

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2.6 KiB

# Copyright (c) 2018 PaddlePaddle Authors. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from __future__ import print_function
import unittest
import numpy as np
import six
from op_test import OpTest, skip_check_grad_ci
class PReluTest(OpTest):
def setUp(self):
self.init_input_shape()
self.init_attr()
self.op_type = "prelu"
x_np = np.random.uniform(-1, 1, self.x_shape)
# Since zero point in prelu is not differentiable, avoid randomize
# zero.
x_np[np.abs(x_np) < 0.005] = 0.02
if self.attrs == {'mode': "all"}:
alpha_np = np.random.uniform(-1, -0.5, (1))
elif self.attrs == {'mode': "channel"}:
alpha_np = np.random.uniform(-1, -0.5, (1, x_np.shape[1], 1, 1))
else:
alpha_np = np.random.uniform(-1, -0.5, \
(1, x_np.shape[1], x_np.shape[2], x_np.shape[3]))
self.inputs = {'X': x_np, 'Alpha': alpha_np}
out_np = np.maximum(self.inputs['X'], 0.)
out_np = out_np + np.minimum(self.inputs['X'],
0.) * self.inputs['Alpha']
assert out_np is not self.inputs['X']
self.outputs = {'Out': out_np}
def init_input_shape(self):
self.x_shape = (2, 100, 3, 4)
def init_attr(self):
self.attrs = {'mode': "channel"}
def test_check_output(self):
self.check_output()
def test_check_grad(self):
self.check_grad(['X', 'Alpha'], 'Out')
# TODO(minqiyang): Resume these test cases after fixing Python3 CI job issues
if six.PY2:
@skip_check_grad_ci(
reason="[skip shape check] Input(Alpha) must be 1-D and only has one data in 'all' mode"
)
class TestModeAll(PReluTest):
def init_input_shape(self):
self.x_shape = (2, 3, 4, 5)
def init_attr(self):
self.attrs = {'mode': "all"}
class TestModeElt(PReluTest):
def init_input_shape(self):
self.x_shape = (3, 2, 5, 10)
def init_attr(self):
self.attrs = {'mode': "element"}
if __name__ == "__main__":
unittest.main()