vendor/structopt/tests/default_value.rs

   1 use structopt::StructOpt;
   2
   3 mod utils;
   4
   5 use utils::*;
   6
   7 #[test]
   8 fn auto_default_value() {
   9     #[derive(StructOpt, PartialEq, Debug)]
  10     struct Opt {
  11         #[structopt(default_value)]
  12         arg: i32,
  13     }
  14     assert_eq!(Opt { arg: 0 }, Opt::from_iter(&["test"]));
  15     assert_eq!(Opt { arg: 1 }, Opt::from_iter(&["test", "1"]));
  16
  17     let help = get_long_help::<Opt>();
  18     assert!(help.contains("[default: 0]"));
  19 }