[英]How do I gtest that code did not call exit()
I'd like to test this function with Google Test: 我想用Google Test测试这个功能:
foo() {
if(some_grave_error)
exit(1);
// do something
}
I want my test to fail if foo
calls std::exit()
. 如果
foo
调用std::exit()
我希望我的测试失败。 How do I do this? 我该怎么做呢? It is sort of inverse to what EXPECT_EXIT does?
它与EXPECT_EXIT的作用相反?
You should make foo()
testable: 你应该使
foo()
可测试:
using fexit_callback = void(*)(int);
void foo(fexit_callback exit = &std::exit)
{
if(some_condition)
exit(1);
}
And magically, all your troubles disappear: 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);
}
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