c – 如何gtest代码没有调用exit()

foo() {
    if(some_grave_error)
        exit(1);
    // do something
}

如果foo调用std :: exit(),我希望我的测试失败.我该怎么做呢？它与EXPECT_EXIT的作用相反？

using fexit_callback = void(*)(int);
void foo(fexit_callback exit = &std::exit)
{
    if(some_condition)
        exit(1);
}

神奇的是,你所有的麻烦都消失了：

#include <cstdlib>
#include <cassert>

using fexit_callback = void(*)(int);
void foo(fexit_callback exit = &std::exit)
{
    if(true)
        exit(1);
}

namespace mockup
{
    int result = 0;
    void exit(int r) { result = r; }
}

int main()
{
    foo(mockup::exit);
    assert(mockup::result == 1);
}