clap/tests/derive/deny_warnings.rs

67 lines
1.7 KiB
Rust

// Copyright 2018 Guillaume Pinot (@TeXitoi) <texitoi@texitoi.eu>,
// Kevin Knapp (@kbknapp) <kbknapp@gmail.com>, and
// Ana Hobden (@hoverbear) <operator@hoverbear.org>
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
//
// This work was derived from Structopt (https://github.com/TeXitoi/structopt)
// commit#ea76fa1b1b273e65e3b0b1046643715b49bec51f which is licensed under the
// MIT/Apache 2.0 license.
#![deny(unused_qualifications)]
#![deny(warnings)]
use clap::Parser;
fn try_str(s: &str) -> Result<String, std::convert::Infallible> {
Ok(s.into())
}
#[test]
fn warning_never_struct() {
#[derive(Parser, Debug, PartialEq)]
struct Opt {
#[arg(value_parser = try_str, default_value_t)]
s: String,
}
assert_eq!(
Opt {
s: "foo".to_string()
},
Opt::try_parse_from(["test", "foo"]).unwrap()
);
}
#[test]
fn warning_never_enum() {
#[derive(Parser, Debug, PartialEq)]
enum Opt {
Foo {
#[arg(value_parser = try_str, default_value_t)]
s: String,
},
}
assert_eq!(
Opt::Foo {
s: "foo".to_string()
},
Opt::try_parse_from(["test", "foo", "foo"]).unwrap()
);
}
#[test]
fn warning_unused_qualifications() {
// This causes `clap::Args` within the derive to be unused qualifications
use clap::Args;
#[derive(Args, Clone, Copy, Debug, Default)]
#[group(skip)]
pub struct Compose<L: Args> {
#[command(flatten)]
pub left: L,
}
}