clap 3.0.0-beta.2

A simple to use, efficient, and full-featured Command Line Argument Parser
Documentation 
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use crate::{build::app::Propagation, App, AppSettings};

#[test]
fn global_version() {
    let mut app = App::new("global_version")
        .setting(AppSettings::GlobalVersion)
        .version("1.1")
        .subcommand(App::new("sub1"));
    app._propagate(Propagation::NextLevel);
    assert_eq!(app.subcommands[0].version, Some("1.1"));
}

#[test]
fn global_setting() {
    let mut app = App::new("test")
        .global_setting(AppSettings::ColoredHelp)
        .subcommand(App::new("subcmd"));
    app._propagate(Propagation::NextLevel);
    assert!(app
        .subcommands
        .iter()
        .find(|s| s.name == "subcmd")
        .unwrap()
        .is_set(AppSettings::ColoredHelp));
}

#[test]
fn global_settings() {
    let mut app = App::new("test")
        .global_setting(AppSettings::ColoredHelp)
        .global_setting(AppSettings::TrailingVarArg)
        .subcommand(App::new("subcmd"));
    app._propagate(Propagation::NextLevel);
    assert!(app
        .subcommands
        .iter()
        .find(|s| s.name == "subcmd")
        .unwrap()
        .is_set(AppSettings::ColoredHelp));
    assert!(app
        .subcommands
        .iter()
        .find(|s| s.name == "subcmd")
        .unwrap()
        .is_set(AppSettings::TrailingVarArg));
}

// This test will *fail to compile* if App is not Send + Sync
#[test]
fn app_send_sync() {
    fn foo<T: Send + Sync>(_: T) {}
    foo(App::new("test"))
}

#[test]
fn issue_2090() {
    let mut app = App::new("app")
        .global_setting(AppSettings::DisableVersion)
        .subcommand(App::new("sub"));
    app._build();

    assert!(app.subcommands[0].is_set(AppSettings::DisableVersion));
}