mirror of
https://github.com/clap-rs/clap
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51 lines
1.5 KiB
Rust
51 lines
1.5 KiB
Rust
// Copyright 2018 Guillaume Pinot (@TeXitoi) <texitoi@texitoi.eu>,
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// Kevin Knapp (@kbknapp) <kbknapp@gmail.com>, and
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// Andrew Hobden (@hoverbear) <andrew@hoverbear.org>
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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#[macro_use]
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extern crate clap;
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use clap::{App, Arg, ArgEnum};
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#[derive(ArgEnum, Debug, PartialEq)]
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#[case_sensitive]
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enum ArgChoice {
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Foo,
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Bar,
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Baz,
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}
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#[test]
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fn when_lowercase() {
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let matches = App::new(env!("CARGO_PKG_NAME"))
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.arg(
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Arg::with_name("arg")
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.required(true)
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.takes_value(true)
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.possible_values(&ArgChoice::variants()),
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)
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.get_matches_from_safe(vec!["", "foo"]); // We expect this to fail.
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assert!(matches.is_err());
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assert_eq!(matches.unwrap_err().kind, clap::ErrorKind::InvalidValue);
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}
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#[test]
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fn when_capitalized() {
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let matches = App::new(env!("CARGO_PKG_NAME"))
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.arg(
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Arg::with_name("arg")
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.required(true)
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.takes_value(true)
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.possible_values(&ArgChoice::variants()),
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)
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.get_matches_from_safe(vec!["", "Foo"])
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.unwrap();
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let t = value_t!(matches.value_of("arg"), ArgChoice);
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assert!(t.is_ok());
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assert_eq!(t.unwrap(), ArgChoice::Foo);
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}
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