使用GoogleTest验证异常消息

Question

是否可以验证异常抛出的消息？目前可以做到:

ASSERT_THROW(statement, exception_type)

这一切都很好,但没有,我在哪里可以找到一种方法来测试e.what()是我真正想要的.这是不是可以通过谷歌测试？

Answer 1

像下面这样的东西会起作用。只需以某种方式捕获异常，然后EXPECT_STREQ在what()调用中执行以下操作：

#include "gtest/gtest.h"

#include <exception>

class myexception: public std::exception
{
  virtual const char* what() const throw()
  {
    return "My exception happened";
  }
} myex;


TEST(except, what)
{
  try {
    throw myex;
    FAIL();  // exception not thrown as expected
  } catch (std::exception& ex) {
      EXPECT_STREQ("My exception happened", ex.what());
  }

}

int main(int argc, char **argv) {
  ::testing::InitGoogleTest(&argc, argv);
  return RUN_ALL_TESTS();
}