1# Copyright 2022 Huawei Technologies Co., Ltd 2# 3# Licensed under the Apache License, Version 2.0 (the "License"); 4# you may not use this file except in compliance with the License. 5# You may obtain a copy of the License at 6# 7# http://www.apache.org/licenses/LICENSE-2.0 8# 9# Unless required by applicable law or agreed to in writing, software 10# distributed under the License is distributed on an "AS IS" BASIS, 11# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12# See the License for the specific language governing permissions and 13# limitations under the License. 14# ============================================================================ 15import numpy as np 16import pytest 17import mindspore as ms 18import mindspore.nn as nn 19from mindspore import Tensor 20from mindspore import ops 21 22 23class Net(nn.Cell): 24 def construct(self, x): 25 return ops.arccos(x) 26 27 28@pytest.mark.level2 29@pytest.mark.platform_x86_cpu 30@pytest.mark.platform_arm_cpu 31@pytest.mark.platform_x86_gpu_training 32@pytest.mark.platform_arm_ascend_training 33@pytest.mark.platform_x86_ascend_training 34@pytest.mark.env_onecard 35@pytest.mark.parametrize('mode', [ms.GRAPH_MODE, ms.PYNATIVE_MODE]) 36def test_arccos(mode): 37 """ 38 Feature: arccos 39 Description: Verify the result of arccos 40 Expectation: success 41 """ 42 ms.set_context(mode=mode) 43 x = Tensor(np.array([0.74, 0.04, 0.30, 0.56]), ms.float32) 44 net = Net() 45 output = net(x) 46 expect_output = np.array([0.737726, 1.5307857, 1.2661036, 0.9764105], dtype=np.float32) 47 assert np.allclose(output.asnumpy(), expect_output, rtol=5e-03, atol=1.e-8) 48