extern crate clap; use clap::{App, Arg}; #[test] #[should_panic] fn unique_arg_names() { App::new("some").args(&[ Arg::with_name("arg").short("a"), Arg::with_name("arg").short("b") ]); } #[test] #[should_panic] fn unique_arg_shorts() { App::new("some").args(&[ Arg::with_name("arg1").short("a"), Arg::with_name("arg2").short("a") ]); } #[test] #[should_panic] fn unique_arg_longs() { App::new("some").args(&[ Arg::with_name("arg1").long("long"), Arg::with_name("arg2").long("long") ]); }