mirror of
https://github.com/clap-rs/clap
synced 2024-12-14 23:02:31 +00:00
57 lines
1.5 KiB
Rust
57 lines
1.5 KiB
Rust
use clap::{CommandFactory, Parser};
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use crate::utils;
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#[test]
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fn default_value() {
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#[derive(Parser, PartialEq, Debug)]
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struct Opt {
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#[clap(default_value = "3")]
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arg: i32,
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}
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assert_eq!(Opt { arg: 3 }, Opt::try_parse_from(&["test"]).unwrap());
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assert_eq!(Opt { arg: 1 }, Opt::try_parse_from(&["test", "1"]).unwrap());
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let help = utils::get_long_help::<Opt>();
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assert!(help.contains("[default: 3]"));
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}
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#[test]
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fn default_value_t() {
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#[derive(Parser, PartialEq, Debug)]
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struct Opt {
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#[clap(default_value_t = 3)]
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arg: i32,
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}
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assert_eq!(Opt { arg: 3 }, Opt::try_parse_from(&["test"]).unwrap());
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assert_eq!(Opt { arg: 1 }, Opt::try_parse_from(&["test", "1"]).unwrap());
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let help = utils::get_long_help::<Opt>();
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assert!(help.contains("[default: 3]"));
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}
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#[test]
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fn auto_default_value_t() {
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#[derive(Parser, PartialEq, Debug)]
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struct Opt {
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#[clap(default_value_t)]
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arg: i32,
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}
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assert_eq!(Opt { arg: 0 }, Opt::try_parse_from(&["test"]).unwrap());
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assert_eq!(Opt { arg: 1 }, Opt::try_parse_from(&["test", "1"]).unwrap());
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let help = utils::get_long_help::<Opt>();
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assert!(help.contains("[default: 0]"));
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}
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#[test]
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fn detect_os_variant() {
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#![allow(unused_parens)] // needed for `as_ref` call
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#[derive(clap::Parser)]
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pub struct Options {
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#[clap(default_value_os = ("123".as_ref()))]
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x: String,
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}
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Options::command().debug_assert();
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}
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