ReleaseSuffix

use libtmux::{ReleaseSuffix, ReleaseVersion};

// tmux's two suffix shapes order differently: a patch letter comes *after*
// the plain release, and a release candidate comes before it.
let plain = ReleaseVersion::new(3, 5, ReleaseSuffix::FINAL);
let patched = ReleaseVersion::new(3, 5, ReleaseSuffix::patch('a').expect("a patch letter"));
let candidate = ReleaseVersion::new(
    3,
    5,
    ReleaseSuffix::release_candidate(1).expect("one is nonzero"),
);

assert!(candidate < plain);
assert!(plain < patched);

// Only those two shapes exist, so anything else is rejected rather than
// guessed at.
assert_eq!(ReleaseSuffix::patch('B'), None);
assert_eq!(ReleaseSuffix::release_candidate(0), None);