cadcraft/crates/engine/tests/recent_commands.rs

//! Recent Commands for the shortcut menus (#512): the commands started most recently, newest
//! first, each once.

use cadcraft_engine::Session;

#[test]
fn recent_commands_newest_first_without_repeats() {
    let mut s = Session::new();
    assert!(s.recent_commands(5).is_empty());
    for line in ["LINE 0,0 10,0", "", "CIRCLE 0,0 5", "L 0,0 0,10", "", "ZOOM E"] {
        s.cmdline(line).unwrap();
    }
    assert_eq!(s.recent_commands(5), ["zoom", "line", "circle"]);
    assert_eq!(s.recent_commands(2), ["zoom", "line"]);
    assert!(s.recent_commands(0).is_empty());
    // Unknown names never get in.
    assert!(s.cmdline("NOSUCHCOMMAND").is_err());
    s.echo("Command: NOSUCHCOMMAND");
    assert_eq!(s.recent_commands(5), ["zoom", "line", "circle"]);
}