mirror of
https://github.com/clap-rs/clap
synced 2025-01-20 16:43:54 +00:00
34 lines
886 B
Rust
34 lines
886 B
Rust
|
extern crate clap;
|
||
|
|
|
||
|
|
use clap::App;
|
||
|
|
|
||
|
|
#[test]
|
||
|
|
fn print_app_help() {
|
||
|
|
let mut app = App::new("test")
|
||
|
|
.author("Kevin K.")
|
||
|
|
.about("tests stuff")
|
||
|
|
.version("1.3")
|
||
|
|
.args_from_usage("-f, --flag 'some flag'
|
||
|
|
--option [opt] 'some option'");
|
||
|
|
// We call a get_matches method to cause --help and --version to be built
|
||
|
|
let _ = app.get_matches_from_safe_borrow(vec![""]);
|
||
|
|
|
||
|
|
// Now we check the output of print_help()
|
||
|
|
let mut help = vec![];
|
||
|
|
app.write_help(&mut help).ok().expect("failed to print help");
|
||
|
|
assert_eq!(&*String::from_utf8_lossy(&*help), &*String::from("test 1.3\n\
|
||
|
|
Kevin K.
|
||
|
|
tests stuff
|
||
|
|
|
||
|
|
USAGE:
|
||
|
|
\ttest [FLAGS] [OPTIONS]
|
||
|
|
|
||
|
|
FLAGS:
|
||
|
|
-f, --flag some flag
|
||
|
|
-h, --help Prints help information
|
||
|
|
-V, --version Prints version information
|
||
|
|
|
||
|
|
OPTIONS:
|
||
|
|
--option <opt> some option\n"));
|
||
|
|
}
|