assert_not_contain

Asserts that a string does not contain text or that a range does not contain an element.

String-like values use substring semantics. Other ranges use element lookup through std::ranges::find, so an element must compare equal to the unexpected value to fail.

#include <vector>
 
#include <kaycxx/test.hpp>
 
using namespace kaycxx::test;
 
int main() {
    assert_not_contain("hello world", "error");
    assert_not_contain("abc", 'x');
 
    auto values = std::vector{1, 2, 3};
    assert_not_contain(values, 4);
}

Null C string pointers do not contain anything and therefore pass assert_not_contain.