Function assert_chain

crates/core/tests/tests.rs:950–968

(actual: impl IntoIterator<Item = T>, expected: impl IntoIterator<Item = U>)

#[cfg(feature = "anyhow")]
fn assert_chain<T, U>(actual: impl IntoIterator<Item = T>, expected: impl IntoIterator<Item = U>)
where
    T: PartialEq<U>,
    T: fmt::Debug,
    U: fmt::Debug,
{
    let mut actual = actual.into_iter();
    let mut expected = expected.into_iter();
    loop {
        match (actual.next(), expected.next()) {
            (None, None) => return,
            (None, Some(x)) => {
                panic!("expected {x:?} next in chain, but actual chain is exhausted")
            }
            (Some(x), None) => panic!("expected chain to be exhausted, but found {x:?}"),
            (Some(x), Some(y)) => assert_eq!(x, y),
        }
    }
}

#[test]
#[cfg(feature = "anyhow")]