/
boxed.rs
48 lines (41 loc) · 904 Bytes
/
boxed.rs
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use clap::{Args, Parser, Subcommand};
#[derive(Parser, PartialEq, Debug)]
struct Opt {
#[clap(subcommand)]
sub: Box<Sub>,
}
#[derive(Subcommand, PartialEq, Debug)]
enum Sub {
Flame {
#[clap(flatten)]
arg: Box<Ext>,
},
}
#[derive(Args, PartialEq, Debug)]
struct Ext {
arg: u32,
}
#[test]
fn boxed_flatten_subcommand() {
assert_eq!(
Opt {
sub: Box::new(Sub::Flame {
arg: Box::new(Ext { arg: 1 })
})
},
Opt::try_parse_from(&["test", "flame", "1"]).unwrap()
);
}
#[test]
fn update_boxed_flatten_subcommand() {
let mut opt = Opt::try_parse_from(&["test", "flame", "1"]).unwrap();
opt.update_from(&["test", "flame", "42"]);
assert_eq!(
Opt {
sub: Box::new(Sub::Flame {
arg: Box::new(Ext { arg: 42 })
})
},
opt
);
}