在 Google 测试中打印附加输出

发布于 2024-12-12 11:13:59 字数 645 浏览 1 评论 0原文

我使用的是 googletest C++ 测试框架。通常，运行测试的文本输出如下所示：

[ RUN      ] MyTest.Fuzz
[       OK ] MyTest.Fuzz (1867 ms)

我想以相同的格式输出一些附加数据，例如：

[ RUN      ] MyTest.Fuzz
[          ] random seed = 1319760587
[       OK ] MyTest.Fuzz (1867 ms)

我发现在 googletest 文档中记录附加信息，但这似乎只将结构化数据发送到 XML 输出，而不是标准控制台输出。

我可以在单元测试中调用一个 googletest 函数来输出这种格式的文本吗？手动将数据发送到 cout 是可行的，但它不包括通常的彩色输出，因此我必须通过打印 13 个空格或其他内容来显式缩进输出。

原文

I'm using the googletest C++ testing framework. Normally the textual output of running a test looks like this:

[ RUN      ] MyTest.Fuzz
[       OK ] MyTest.Fuzz (1867 ms)

I would like to output some additional data in the same format, for example:

[ RUN      ] MyTest.Fuzz
[          ] random seed = 1319760587
[       OK ] MyTest.Fuzz (1867 ms)

I have found Logging Additional Information in the googletest documentation but that only seems to send structured data to the XML output, not the standard console output.

Is there a googletest function I can call inside my unit test that outputs text in this format? Manually sending data to cout works, but it doesn't include the usual coloured output so I have to explicitly indent the output by printing 13 spaces or whatever.

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听你说爱我 2024-12-19 11:13:59

只需打印到 stderr 即可在默认测试配置中工作。

std::cerr << "[          ] random seed = " << random_seed << std::endl;

Simply printing to stderr will work in the default test configuration.

std::cerr << "[          ] random seed = " << random_seed << std::endl;

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玩世 2024-12-19 11:13:59

在 gTest 中打印附加输出也可能是这样的：

  EXPECT_NE(result1, result2)
      << "currentTime: " << formattedTime << std::endl
      << "  addinfo1: " << addinfo1 << std::endl
      << "  addinfo2: " << addinfo2 << std::endl;

std::cout、std::cerr 在 gTest 中不起作用。

Printing additional output in gTest also possible like this:

  EXPECT_NE(result1, result2)
      << "currentTime: " << formattedTime << std::endl
      << "  addinfo1: " << addinfo1 << std::endl
      << "  addinfo2: " << addinfo2 << std::endl;

std::cout, std::cerr will not work within gTest.

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聊慰 2024-12-19 11:13:59

您可以为默认打印机 PrettyUnitTestResultPrinter 编写一个包装器来打印测试属性。您可以使用listeners.default_result_printer()获取默认打印机（见下文）。您必须实现 EmptyTestEventListener 并更改方法 PrettyUnitTestResultPrinter::OnTestEnd() (在 gtest.cc 中）并使用结果属性： test_info.result()->GetTestProperty(i) 就像 XML 输出的打印机：

String XmlUnitTestResultPrinter::TestPropertiesAsXmlAttributes(
    const TestResult& result) {
  Message attributes;
  for (int i = 0; i < result.test_property_count(); ++i) {
    const TestProperty& property = result.GetTestProperty(i);
    attributes << " " << property.key() << "="
        << "\"" << EscapeXmlAttribute(property.value()) << "\"";
  }
  return attributes.GetString();
}

然后您可以替换测试的默认侦听器，就像在 Google 测试示例：

UnitTest& unit_test = *UnitTest::GetInstance();
if (terse_output) {
  TestEventListeners& listeners = unit_test.listeners();
  delete listeners.Release(listeners.default_result_printer());
  listeners.Append(new TersePrinter);
}
int ret_val = RUN_ALL_TESTS();

You could write a wrapper for the default printer PrettyUnitTestResultPrinter to also print out test properties. You can get the default printer with listeners.default_result_printer()(see below). You would have to implement EmptyTestEventListener and change the method PrettyUnitTestResultPrinter::OnTestEnd() (in gtest.cc) and use the results properties: test_info.result()->GetTestProperty(i) like the printer for XML output:

String XmlUnitTestResultPrinter::TestPropertiesAsXmlAttributes(
    const TestResult& result) {
  Message attributes;
  for (int i = 0; i < result.test_property_count(); ++i) {
    const TestProperty& property = result.GetTestProperty(i);
    attributes << " " << property.key() << "="
        << "\"" << EscapeXmlAttribute(property.value()) << "\"";
  }
  return attributes.GetString();
}

Then you can replace the default listener for your tests like it's done in the google test sample:

UnitTest& unit_test = *UnitTest::GetInstance();
if (terse_output) {
  TestEventListeners& listeners = unit_test.listeners();
  delete listeners.Release(listeners.default_result_printer());
  listeners.Append(new TersePrinter);
}
int ret_val = RUN_ALL_TESTS();

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み零 2024-12-19 11:13:59

不，搜索了标题，没有在中间添加您自己的日志。可能有什么要求。如果需要，您可以在 http://code.google.com/p 记录增强任务/googletest/issues/list

小心。

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穿透光 2024-12-19 11:13:59

我刚刚在 linux 中使用了 std::cout 和 ansi 颜色代码，但我相信自从 win 10 周年更新以来这些代码可以在 Windows 中工作。

std::cout << "\033[0;32m" << "[          ] " << "\033[0;0m" 
<< "random seed = " << random_seed << std::endl;

或者只是创建一个头文件和一些 #define 语句并将其包含在我的测试中。我还喜欢设置文本格式以使其更加突出。

#define ANSI_TXT_GRN "\033[0;32m"
#define ANSI_TXT_MGT "\033[0;35m" //Magenta
#define ANSI_TXT_DFT "\033[0;0m" //Console default
#define GTEST_BOX "[     cout ] "
#define COUT_GTEST ANSI_TXT_GRN << GTEST_BOX //You could add the Default
#define COUT_GTEST_MGT COUT_GTEST << ANSI_TXT_MGT

所以我的代码是：

std::cout << COUT_GTEST_MGT << "random seed = " << random_seed << ANSI_TXT_DFT << std::endl;

I have just used std::cout with ansi color codes in linux but I believe the codes work in windows since win 10 anniversary update.

std::cout << "\033[0;32m" << "[          ] " << "\033[0;0m" 
<< "random seed = " << random_seed << std::endl;

or just create a header file and some #define statements and include it in my tests. I also like to format the text to stick out a little more too.

#define ANSI_TXT_GRN "\033[0;32m"
#define ANSI_TXT_MGT "\033[0;35m" //Magenta
#define ANSI_TXT_DFT "\033[0;0m" //Console default
#define GTEST_BOX "[     cout ] "
#define COUT_GTEST ANSI_TXT_GRN << GTEST_BOX //You could add the Default
#define COUT_GTEST_MGT COUT_GTEST << ANSI_TXT_MGT

So my code would be:

std::cout << COUT_GTEST_MGT << "random seed = " << random_seed << ANSI_TXT_DFT << std::endl;

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独守阴晴ぅ圆缺 2024-12-19 11:13:59

以下作品，如果您保存在 .cmd 文件中，然后运行它

https://gist.githubusercontent.com/mlocati/fdabcaeb8071d5c75a2d51712db24011/raw/b710612d6320df7e146508094e84b92b34c77d48/win10colors.cmd

代码示例：

@echo off
cls
echo [101;93m STYLES [0m
echo ^<ESC^>[0m [0mReset[0m
echo ^<ESC^>[1m [1mBold[0m
echo ^<ESC^>[4m [4mUnderline[0m
echo ^<ESC^>[7m [7mInverse[0m
echo.

following works, if you save in a .cmd file and then run it

https://gist.githubusercontent.com/mlocati/fdabcaeb8071d5c75a2d51712db24011/raw/b710612d6320df7e146508094e84b92b34c77d48/win10colors.cmd

example of codes:

@echo off
cls
echo [101;93m STYLES [0m
echo ^<ESC^>[0m [0mReset[0m
echo ^<ESC^>[1m [1mBold[0m
echo ^<ESC^>[4m [4mUnderline[0m
echo ^<ESC^>[7m [7mInverse[0m
echo.

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~没有更多了~