# 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
from paddle.fluid.tests.unittests.op_test import OpTest


class TestNGRAPHMulOp(OpTest):
    def setUp(self):
        self.op_type = "mul"
        self.dtype = np.float32
        self.init_dtype_type()
        self.inputs = {
            'X': np.random.random((2, 4)).astype(self.dtype),
            'Y': np.random.random((4, 4)).astype(self.dtype)
        }
        self.outputs = {'Out': np.dot(self.inputs['X'], self.inputs['Y'])}
        self._cpu_only = True

    def init_dtype_type(self):
        pass

    def test_check_output(self):
        self.check_output()

    def test_check_grad_normal(self):
        self.check_grad(['X', 'Y'], 'Out', max_relative_error=0.5)

    def test_check_grad_ingore_x(self):
        self.check_grad(
            ['Y'], 'Out', max_relative_error=0.5, no_grad_set=set("X"))

    def test_check_grad_ingore_y(self):
        self.check_grad(
            ['X'], 'Out', max_relative_error=0.5, no_grad_set=set('Y'))


if __name__ == "__main__":
    unittest.main()
