mirror of
https://github.com/clap-rs/clap
synced 2024-12-14 06:42:33 +00:00
283 lines
6.9 KiB
Rust
283 lines
6.9 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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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, long)]
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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)]
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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, 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, 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 options() {
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#[derive(Clap, PartialEq, Debug)]
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struct Opt {
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#[clap(short, long)]
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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, 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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#[test]
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fn option_from_str() {
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#[derive(Debug, PartialEq)]
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struct A;
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impl<'a> From<&'a str> for A {
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fn from(_: &str) -> A {
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A
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}
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}
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#[derive(Debug, Clap, PartialEq)]
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struct Opt {
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#[clap(parse(from_str))]
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a: Option<A>,
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}
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assert_eq!(Opt { a: None }, Opt::parse_from(&["test"]));
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assert_eq!(Opt { a: Some(A) }, Opt::parse_from(&["test", "foo"]));
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}
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#[test]
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fn optional_argument_for_optional_option() {
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#[derive(Clap, PartialEq, Debug)]
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struct Opt {
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#[clap(short)]
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#[allow(clippy::option_option)]
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arg: Option<Option<i32>>,
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}
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assert_eq!(
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Opt {
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arg: Some(Some(42))
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},
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Opt::parse_from(&["test", "-a42"])
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);
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assert_eq!(Opt { arg: Some(None) }, Opt::parse_from(&["test", "-a"]));
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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 two_option_options() {
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#[derive(Clap, PartialEq, Debug)]
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struct Opt {
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#[clap(short)]
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arg: Option<Option<i32>>,
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#[clap(long)]
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field: Option<Option<String>>,
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}
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assert_eq!(
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Opt {
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arg: Some(Some(42)),
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field: Some(Some("f".into()))
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},
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Opt::parse_from(&["test", "-a42", "--field", "f"])
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);
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assert_eq!(
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Opt {
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arg: Some(Some(42)),
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field: Some(None)
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},
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Opt::parse_from(&["test", "-a42", "--field"])
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);
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assert_eq!(
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Opt {
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arg: Some(None),
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field: Some(None)
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},
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Opt::parse_from(&["test", "-a", "--field"])
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);
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assert_eq!(
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Opt {
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arg: Some(None),
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field: Some(Some("f".into()))
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},
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Opt::parse_from(&["test", "-a", "--field", "f"])
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);
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assert_eq!(
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Opt {
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arg: None,
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field: Some(None)
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},
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Opt::parse_from(&["test", "--field"])
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);
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assert_eq!(
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Opt {
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arg: None,
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field: None
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},
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Opt::parse_from(&["test"])
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);
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}
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#[test]
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fn optional_vec() {
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#[derive(Clap, PartialEq, Debug)]
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struct Opt {
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#[clap(short)]
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arg: Option<Vec<i32>>,
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}
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assert_eq!(
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Opt { arg: Some(vec![1]) },
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Opt::parse_from(&["test", "-a", "1"])
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);
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assert_eq!(
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Opt {
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arg: Some(vec![1, 2])
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},
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Opt::parse_from(&["test", "-a1", "-a2"])
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);
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assert_eq!(
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Opt {
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arg: Some(vec![1, 2])
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},
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Opt::parse_from(&["test", "-a1", "-a2", "-a"])
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);
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assert_eq!(
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Opt {
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arg: Some(vec![1, 2])
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},
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Opt::parse_from(&["test", "-a1", "-a", "-a2"])
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);
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assert_eq!(
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Opt {
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arg: Some(vec![1, 2])
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},
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Opt::parse_from(&["test", "-a", "1", "2"])
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);
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assert_eq!(
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Opt {
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arg: Some(vec![1, 2, 3])
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},
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Opt::parse_from(&["test", "-a", "1", "2", "-a", "3"])
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);
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assert_eq!(Opt { arg: Some(vec![]) }, Opt::parse_from(&["test", "-a"]));
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assert_eq!(
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Opt { arg: Some(vec![]) },
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Opt::parse_from(&["test", "-a", "-a"])
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);
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assert_eq!(Opt { arg: None }, Opt::parse_from(&["test"]));
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}
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#[test]
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fn two_optional_vecs() {
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#[derive(Clap, PartialEq, Debug)]
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struct Opt {
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#[clap(short)]
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arg: Option<Vec<i32>>,
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#[clap(short)]
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b: Option<Vec<i32>>,
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}
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assert_eq!(
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Opt {
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arg: Some(vec![1]),
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b: Some(vec![])
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},
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Opt::parse_from(&["test", "-a", "1", "-b"])
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);
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assert_eq!(
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Opt {
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arg: Some(vec![1]),
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b: Some(vec![])
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},
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Opt::parse_from(&["test", "-a", "-b", "-a1"])
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);
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assert_eq!(
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Opt {
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arg: Some(vec![1, 2]),
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b: Some(vec![1, 2])
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},
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Opt::parse_from(&["test", "-a1", "-a2", "-b1", "-b2"])
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);
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assert_eq!(Opt { arg: None, b: None }, Opt::parse_from(&["test"]));
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}
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