clap/tests/error.rs
Ed Page 7e899cd340 Revert "Deprecate Arg::help in favour of Arg::about"
This reverts commits 24cb8b1..d0abb37 from clap-rs/clap#1840

This is part of #16.  clap-rs/clap#1840 wasn't the right call but we
don't have time to make the decision now, so instead of having one
option and changing it in 4.0, this reverts back to clap2 behavior.
2021-11-18 12:25:49 -06:00

59 lines
1.6 KiB
Rust

mod utils;
use clap::{App, Arg, Error, ErrorKind};
fn compare_error(
err: Error,
expected_kind: ErrorKind,
expected_output: &str,
stderr: bool,
) -> bool {
let actual_output = err.to_string();
assert_eq!(
stderr,
err.use_stderr(),
"Should Use STDERR failed. Should be {} but is {}",
stderr,
err.use_stderr()
);
assert_eq!(expected_kind, err.kind);
utils::compare(expected_output, actual_output)
}
#[test]
fn app_error() {
static MESSAGE: &str = "error: Failed for mysterious reasons
USAGE:
test [OPTIONS] --all
For more information try --help
";
let app = App::new("test")
.arg(
Arg::new("all")
.short('a')
.long("all")
.required(true)
.help("Also do versioning for private crates (will not be published)"),
)
.arg(
Arg::new("exact")
.long("exact")
.help("Specify inter dependency version numbers exactly with `=`"),
)
.arg(
Arg::new("no_git_commit")
.long("no-git-commit")
.help("Do not commit version changes"),
)
.arg(
Arg::new("no_git_push")
.long("no-git-push")
.help("Do not push generated commit and tags to git remote"),
);
let mut app = app;
let expected_kind = ErrorKind::InvalidValue;
let err = app.error(expected_kind, "Failed for mysterious reasons");
assert!(compare_error(err, expected_kind, MESSAGE, true));
}