| // Copyright 2018 Guillaume Pinot (@TeXitoi) <texitoi@texitoi.eu> |
| // |
| // 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. |
| |
| #[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.")); |
| } |