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mindspore/tests/st/ops/cpu/test_expm1_op.py

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# Copyright 2020 Huawei Technologies Co., Ltd
#
# 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.
# ============================================================================
import numpy as np
import pytest
import mindspore.context as context
import mindspore.nn as nn
from mindspore import Tensor
from mindspore.ops import operations as P
from mindspore import dtype
context.set_context(mode=context.GRAPH_MODE, device_target="CPU")
class NetExpm1(nn.Cell):
def __init__(self):
super(NetExpm1, self).__init__()
self.expm1 = P.Expm1()
def construct(self, x):
return self.expm1(x)
@pytest.mark.level0
@pytest.mark.platform_x86_cpu
@pytest.mark.env_onecard
def test_expm1_op():
x = np.random.rand(3, 8).astype(np.float32)
y = np.random.rand(3, 8).astype(np.float16)
expm1 = NetExpm1()
output_x = expm1(Tensor(x, dtype=dtype.float32))
expect_x = np.expm1(x)
tol_x = 1e-6
assert (np.abs(output_x.asnumpy() - expect_x) < tol_x).all()
output_y = expm1(Tensor(y, dtype=dtype.float16))
expect_y = np.expm1(y)
tol_y = 1e-3
assert (np.abs(output_y.asnumpy() - expect_y) < tol_y).all()