clap/tests/author_version_about.rs
2018-07-02 13:41:56 -04:00

45 lines
1.5 KiB
Rust

// Copyright 2018 Guillaume Pinot (@TeXitoi) <texitoi@texitoi.eu>,
// Kevin Knapp (@kbknapp) <kbknapp@gmail.com>, and
// Andrew Hobden (@hoverbear) <andrew@hoverbear.org>
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
//
// This work was derived from Structopt (https://github.com/TeXitoi/structopt)
// commit#ea76fa1b1b273e65e3b0b1046643715b49bec51f which is licensed under the
// MIT/Apache 2.0 license.
#[macro_use]
extern crate structopt;
use structopt::StructOpt;
#[test]
fn no_author_version_about() {
#[derive(StructOpt, PartialEq, Debug)]
#[structopt(name = "foo", about = "", author = "", version = "")]
struct Opt {}
let mut output = Vec::new();
Opt::clap().write_long_help(&mut output).unwrap();
let output = String::from_utf8(output).unwrap();
assert!(output.starts_with("foo \n\nUSAGE:"));
}
#[test]
fn use_env() {
#[derive(StructOpt, PartialEq, Debug)]
#[structopt()]
struct Opt {}
let mut output = Vec::new();
Opt::clap().write_long_help(&mut output).unwrap();
let output = String::from_utf8(output).unwrap();
assert!(output.starts_with("structopt 0.2."));
assert!(output.contains("Guillaume Pinot <texitoi@texitoi.eu>, others"));
assert!(output.contains("Parse command line argument by defining a struct."));
}