c - Read standard output with Criterion for unit test

Question

I have a function as:

void print(const string_t *this)
{
    if (this->str == NULL)
        return;
    printf("%s
", this->str);
}

and I have this test for now:

Test(Test_print, null_case, .init=cr_redirect_stdout)
{
    string_t string;

    string_init(&string, "aze");
    string.print(&string);
    cr_assert_stdout_eq("aze");
    string_destroy(&string);
}

But I didn't find how to test a write in the standard output, for the moment this test is crashing.

How can I read the standard test the standard output?

Answer 1

等待大神答复