mirror of
https://github.com/clap-rs/clap
synced 2024-12-14 06:42:33 +00:00
9e64387ef0
The extra whitespace was targeted at machine processing for a subset of users for a subset of runs of CLIs. On the other hand, there is a lot of concern over the extra verbose output. A user can set the help template for man, if desired. They can even do something (env? feature flag?) to make it only run when doing man generation. We also have #3174 in the works. So let's focus on the end-user reading `--help`. People wanting to use `help2man` have workarounds to do what they need. Fixes #3096
78 lines
1.8 KiB
Rust
78 lines
1.8 KiB
Rust
#![cfg(feature = "cargo")]
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use clap::{crate_authors, crate_description, crate_name, crate_version, App, ErrorKind};
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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:
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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:
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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 = App::new("prog")
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.version(crate_version!())
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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 = App::new("prog")
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.version("1")
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.about(crate_description!())
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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 = App::new("prog")
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.version("1")
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.author(crate_authors!())
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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 = App::new(crate_name!())
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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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