#   Copyright (c) 2020 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 sys

sys.path.append("..")
from op_test import OpTest, skip_check_grad_ci
import paddle
import paddle.fluid.core as core
import paddle.fluid as fluid
from paddle.fluid import compiler, Program, program_guard
from paddle.fluid.framework import convert_np_dtype_to_dtype_


class TestMeanOp(OpTest):

    def setUp(self):
        self.op_type = "reduce_mean"
        self.inputs = {'X': np.random.random((5, 6, 10)).astype("float32")}
        self.attrs = {'use_xpu': True}
        self.outputs = {'Out': self.inputs['X'].mean(axis=0)}

    def test_check_output(self):
        if paddle.is_compiled_with_xpu():
            place = paddle.XPUPlace(0)
            self.check_output_with_place(place)

    def check_grad_(self):
        self.check_grad(['X'], 'Out')


class TestMeanOp5D(OpTest):

    def setUp(self):
        self.op_type = "reduce_mean"
        self.inputs = {
            'X': np.random.random((1, 2, 5, 6, 10)).astype("float32")
        }
        self.attrs = {'use_xpu': True}
        self.outputs = {'Out': self.inputs['X'].mean(axis=0)}

    def test_check_output(self):
        if paddle.is_compiled_with_xpu():
            place = paddle.XPUPlace(0)
            self.check_output_with_place(place)

    def test_check_grad(self):
        self.check_grad(['X'], 'Out')


class TestMeanOp6D(OpTest):

    def setUp(self):
        self.op_type = "reduce_mean"
        self.inputs = {
            'X': np.random.random((1, 1, 2, 5, 6, 10)).astype("float32")
        }
        self.attrs = {'use_xpu': True}
        self.outputs = {'Out': self.inputs['X'].mean(axis=0)}

    def test_check_output(self):
        if paddle.is_compiled_with_xpu():
            place = paddle.XPUPlace(0)
            self.check_output_with_place(place)

    def test_check_grad(self):
        self.check_grad(['X'], 'Out')


class TestMeanOp8D(OpTest):

    def setUp(self):
        self.op_type = "reduce_mean"
        self.inputs = {
            'X': np.random.random((1, 3, 1, 2, 1, 4, 3, 10)).astype("float32")
        }
        self.attrs = {'dim': (0, 3), 'use_xpu': True}
        self.outputs = {'Out': self.inputs['X'].mean(axis=(0, 3))}

    def test_check_output(self):
        if paddle.is_compiled_with_xpu():
            place = paddle.XPUPlace(0)
            self.check_output_with_place(place)

    def test_check_grad(self):
        self.check_grad(['X'], 'Out')


class Test1DReduce(OpTest):

    def setUp(self):
        self.op_type = "reduce_mean"
        self.inputs = {'X': np.random.random(120).astype("float32")}
        self.attrs = {'use_xpu': True}
        self.outputs = {'Out': self.inputs['X'].mean(axis=0)}

    def test_check_output(self):
        if paddle.is_compiled_with_xpu():
            place = paddle.XPUPlace(0)
            self.check_output_with_place(place)

    def test_check_grad(self):
        self.check_grad(['X'], 'Out')


class Test2DReduce0(Test1DReduce):

    def setUp(self):
        self.op_type = "reduce_mean"
        self.attrs = {'dim': [0], 'use_xpu': True}
        self.inputs = {'X': np.random.random((20, 10)).astype("float32")}
        self.outputs = {'Out': self.inputs['X'].mean(axis=0)}


class Test2DReduce1(Test1DReduce):

    def setUp(self):
        self.op_type = "reduce_mean"
        self.attrs = {'dim': [1], 'use_xpu': True}
        self.inputs = {'X': np.random.random((20, 10)).astype("float32")}
        self.outputs = {
            'Out': self.inputs['X'].mean(axis=tuple(self.attrs['dim']))
        }


class Test3DReduce0(Test1DReduce):

    def setUp(self):
        self.op_type = "reduce_mean"
        self.attrs = {'dim': [1], 'use_xpu': True}
        self.inputs = {'X': np.random.random((5, 6, 7)).astype("float32")}
        self.outputs = {
            'Out': self.inputs['X'].mean(axis=tuple(self.attrs['dim']))
        }


class Test3DReduce1(Test1DReduce):

    def setUp(self):
        self.op_type = "reduce_mean"
        self.attrs = {'dim': [2], 'use_xpu': True}
        self.inputs = {'X': np.random.random((5, 6, 7)).astype("float32")}
        self.outputs = {
            'Out': self.inputs['X'].mean(axis=tuple(self.attrs['dim']))
        }


class Test3DReduce2(Test1DReduce):

    def setUp(self):
        self.op_type = "reduce_mean"
        self.attrs = {'dim': [-2], 'use_xpu': True}
        self.inputs = {'X': np.random.random((5, 6, 7)).astype("float32")}
        self.outputs = {
            'Out': self.inputs['X'].mean(axis=tuple(self.attrs['dim']))
        }


class Test3DReduce3(Test1DReduce):

    def setUp(self):
        self.op_type = "reduce_mean"
        self.attrs = {'dim': [1, 2], 'use_xpu': True}
        self.inputs = {'X': np.random.random((5, 6, 7)).astype("float32")}
        self.outputs = {
            'Out': self.inputs['X'].mean(axis=tuple(self.attrs['dim']))
        }


class TestKeepDimReduce(Test1DReduce):

    def setUp(self):
        self.op_type = "reduce_mean"
        self.inputs = {'X': np.random.random((5, 6, 10)).astype("float32")}
        self.attrs = {'dim': [1], 'keep_dim': True, 'use_xpu': True}
        self.outputs = {
            'Out':
            self.inputs['X'].mean(axis=tuple(self.attrs['dim']),
                                  keepdims=self.attrs['keep_dim'])
        }


class TestKeepDim8DReduce(Test1DReduce):

    def setUp(self):
        self.op_type = "reduce_mean"
        self.inputs = {
            'X': np.random.random((2, 5, 3, 2, 2, 3, 4, 2)).astype("float32")
        }
        self.attrs = {'dim': (3, 4, 5), 'keep_dim': True, 'use_xpu': True}
        self.outputs = {
            'Out':
            self.inputs['X'].mean(axis=tuple(self.attrs['dim']),
                                  keepdims=self.attrs['keep_dim'])
        }


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