mirror of
https://github.com/clap-rs/clap
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9a645d2d19
After looking at more examples, I've become more attached to this briefer format. Part of #4132
84 lines
2.1 KiB
Rust
84 lines
2.1 KiB
Rust
#![cfg(feature = "cargo")]
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use clap::{
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crate_authors, crate_description, crate_name, crate_version, error::ErrorKind, Command,
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};
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use crate::utils;
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static DESCRIPTION_ONLY: &str = "prog 1
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A simple to use, efficient, and full-featured Command Line Argument Parser
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Usage: prog
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Options:
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-h, --help Print help information
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-V, --version Print version information
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";
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static AUTHORS_ONLY: &str = "prog 1
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Usage: prog
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Options:
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-h, --help Print help information
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-V, --version Print version information
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";
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#[test]
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fn crate_version() {
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let res = Command::new("prog")
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.version(crate_version!())
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.help_template(utils::FULL_TEMPLATE)
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.try_get_matches_from(vec!["prog", "--version"]);
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assert!(res.is_err());
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let err = res.unwrap_err();
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assert_eq!(err.kind(), ErrorKind::DisplayVersion);
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assert_eq!(
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err.to_string(),
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format!("prog {}\n", env!("CARGO_PKG_VERSION"))
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);
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}
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#[test]
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fn crate_description() {
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let res = Command::new("prog")
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.version("1")
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.about(crate_description!())
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.help_template(utils::FULL_TEMPLATE)
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.try_get_matches_from(vec!["prog", "--help"]);
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assert!(res.is_err());
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let err = res.unwrap_err();
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assert_eq!(err.kind(), ErrorKind::DisplayHelp);
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assert_eq!(err.to_string(), DESCRIPTION_ONLY);
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}
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#[test]
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fn crate_authors() {
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let res = Command::new("prog")
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.version("1")
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.author(crate_authors!())
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.help_template(utils::FULL_TEMPLATE)
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.try_get_matches_from(vec!["prog", "--help"]);
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assert!(res.is_err());
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let err = res.unwrap_err();
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assert_eq!(err.kind(), ErrorKind::DisplayHelp);
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assert_eq!(err.to_string(), AUTHORS_ONLY);
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}
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#[test]
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fn crate_name() {
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let res = Command::new(crate_name!())
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.help_template(utils::FULL_TEMPLATE)
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.version("3.0")
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.try_get_matches_from(vec!["clap", "--version"]);
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assert!(res.is_err());
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let err = res.unwrap_err();
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assert_eq!(err.kind(), ErrorKind::DisplayVersion);
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assert_eq!(err.to_string(), "clap 3.0\n");
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}
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