mirror of
https://github.com/clap-rs/clap
synced 2024-12-16 07:42:32 +00:00
97 lines
3 KiB
Rust
97 lines
3 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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//
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// This work was derived from Structopt (https://github.com/TeXitoi/structopt)
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// commit#ea76fa1b1b273e65e3b0b1046643715b49bec51f which is licensed under the
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// MIT/Apache 2.0 license.
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#[macro_use]
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extern crate clap;
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use clap::Clap;
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#[test]
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fn required_option() {
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#[derive(Clap, PartialEq, Debug)]
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struct Opt {
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#[clap(short = "a", long = "arg")]
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arg: i32,
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}
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assert_eq!(Opt { arg: 42 }, Opt::parse_from(&["test", "-a42"]));
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assert_eq!(Opt { arg: 42 }, Opt::parse_from(&["test", "-a", "42"]));
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assert_eq!(Opt { arg: 42 }, Opt::parse_from(&["test", "--arg", "42"]));
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assert!(Opt::try_parse_from(&["test"]).is_err());
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assert!(Opt::try_parse_from(&["test", "-a42", "-a24"]).is_err());
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}
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#[test]
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fn optional_option() {
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#[derive(Clap, PartialEq, Debug)]
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struct Opt {
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#[clap(short = "a")]
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arg: Option<i32>,
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}
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assert_eq!(Opt { arg: Some(42) }, Opt::parse_from(&["test", "-a42"]));
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assert_eq!(Opt { arg: None }, Opt::parse_from(&["test"]));
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assert!(Opt::try_parse_from(&["test", "-a42", "-a24"]).is_err());
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}
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#[test]
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fn option_with_default() {
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#[derive(Clap, PartialEq, Debug)]
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struct Opt {
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#[clap(short = "a", default_value = "42")]
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arg: i32,
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}
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assert_eq!(Opt { arg: 24 }, Opt::parse_from(&["test", "-a24"]));
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assert_eq!(Opt { arg: 42 }, Opt::parse_from(&["test"]));
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assert!(Opt::try_parse_from(&["test", "-a42", "-a24"]).is_err());
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}
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#[test]
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fn option_with_raw_default() {
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#[derive(Clap, PartialEq, Debug)]
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struct Opt {
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#[clap(short = "a", raw(default_value = r#""42""#))]
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arg: i32,
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}
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assert_eq!(Opt { arg: 24 }, Opt::parse_from(&["test", "-a24"]));
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assert_eq!(Opt { arg: 42 }, Opt::parse_from(&["test"]));
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assert!(Opt::try_parse_from(&["test", "-a42", "-a24"]).is_err());
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}
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#[test]
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fn options() {
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#[derive(Clap, PartialEq, Debug)]
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struct Opt {
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#[clap(short = "a", long = "arg")]
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arg: Vec<i32>,
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}
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assert_eq!(Opt { arg: vec![24] }, Opt::parse_from(&["test", "-a24"]));
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assert_eq!(Opt { arg: vec![] }, Opt::parse_from(&["test"]));
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assert_eq!(
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Opt { arg: vec![24, 42] },
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Opt::parse_from(&["test", "-a24", "--arg", "42"])
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);
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}
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#[test]
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fn default_value() {
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#[derive(Clap, PartialEq, Debug)]
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struct Opt {
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#[clap(short = "a", default_value = "test")]
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arg: String,
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}
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assert_eq!(Opt { arg: "test".into() }, Opt::parse_from(&["test"]));
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assert_eq!(
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Opt { arg: "foo".into() },
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Opt::parse_from(&["test", "-afoo"])
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);
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}
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