googletest:如果测试失败，则执行其他操作 [英] googletest: performing additional operation if test fail

问题描述

如果测试失败，我希望能够将数据保存到磁盘.在googletest框架内有什么方法可以做到这一点吗?

I'd like to be able to save data to disk in case the test fails. Is there any way to do it within the googletest framework?

TEST_F(test_similarity,are_similar) {

  ASSERT_GT(1e-10,norm(im0,im1));

  // If test fails save images to disk for comparison:
  imwrite("im0.png",im0);
  imwrite("im1.png",im1);
}

推荐答案

有Test::HasFailure()，Test::HasNonfatalFailure()和Test::HasFatalFailure()函数，如果发生(致命/非致命)故障，则返回true .您可以使用它们进行检查.

There are the Test::HasFailure(), Test::HasNonfatalFailure() and Test::HasFatalFailure() functions, that return true if there was a (fatal/non-fatal) failure. You could use them to check.

TEST_F(test_similarity,are_similar) {

  EXPECT_GT(1e-10,norm(im0,im1)); // Note the change to EXPECT

  // If test fails save images to disk for comparison:
  if(HasFailure()) {  // if not in a TEST, use ::testing::Test::HasFailure()
    imwrite("im0.png",im0);
    imwrite("im1.png",im1);
    FAIL(); //We want to fail fatally; use ADD_FAILURE() to fail non-fatally
  }
}

请参阅 https://github.com/google/googletest/blob/master/googletest/docs/advanced.md#checking-for-failures-in-the-current-test 了解详情.

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