[cfe-dev] Positive tests in the clang test suite?

[Joel Jacobson via cfe-dev]

Dear Clang hackers,

I'm trying to understand how Clang is tested,
I've looked at lots of .c and .cpp files in ./test/,
and I see a lot of "// expected-warning" and "// expected-error" annotations,
but I don't see any positive tests checking for expected values?

Other compilers such as rustc uses macros such as assert_eq, e.g.:
#[test]
fn test_extend_specialization() {
    let mut a = BinaryHeap::from(vec![-10, 1, 2, 3, 3]);
    let b = BinaryHeap::from(vec![-20, 5, 43]);

    a.extend(b);

    assert_eq!(a.into_sorted_vec(), [-20, -10, 1, 2, 3, 3, 5, 43]);
}

Is there any similar type of positive testing in Clang, or is the
testing mainly focused on checking for warnings and errors, and just
checking valid code compiles, but not actually checking the computed
resulting values?

Thanks for clarifying.

Best regards,

Joel Jacobson