mod utils; use clap::{arg, App}; static EXAMPLE1_TMPL_S: &str = "{bin} {version} {author} {about} USAGE: {usage} {all-args}"; static EXAMPLE1_TMPS_F: &str = "{bin} {version} {author} {about} USAGE: {usage} OPTIONS: {options} ARGS: {positionals} SUBCOMMANDS: {subcommands}"; static CUSTOM_TEMPL_HELP: &str = "MyApp 1.0 Kevin K. Does awesome things USAGE: MyApp [OPTIONS] [SUBCOMMAND] OPTIONS: -c, --config Sets a custom config file -d Turn debugging information on -h, --help Print help information -V, --version Print version information ARGS: Sets an optional output file SUBCOMMANDS: help Print this message or the help of the given subcommand(s) test does testing things "; static SIMPLE_TEMPLATE: &str = "MyApp 1.0 Kevin K. Does awesome things USAGE: MyApp [OPTIONS] [SUBCOMMAND] ARGS: Sets an optional output file OPTIONS: -c, --config Sets a custom config file -d Turn debugging information on -h, --help Print help information -V, --version Print version information SUBCOMMANDS: help Print this message or the help of the given subcommand(s) test does testing things "; #[test] fn with_template() { let app = get_app().help_template(EXAMPLE1_TMPL_S); assert!(utils::compare_output( app, "MyApp --help", SIMPLE_TEMPLATE, false )); } #[test] fn custom_template() { let app = get_app().help_template(EXAMPLE1_TMPS_F); assert!(utils::compare_output( app, "MyApp --help", CUSTOM_TEMPL_HELP, false )); } #[test] fn template_empty() { let app = App::new("MyApp") .version("1.0") .author("Kevin K. ") .about("Does awesome things") .help_template(""); assert!(utils::compare_output(app, "MyApp --help", "\n", false)); } #[test] fn template_notag() { let app = App::new("MyApp") .version("1.0") .author("Kevin K. ") .about("Does awesome things") .help_template("test no tag test"); assert!(utils::compare_output( app, "MyApp --help", "test no tag test\n", false )); } #[test] fn template_unknowntag() { let app = App::new("MyApp") .version("1.0") .author("Kevin K. ") .about("Does awesome things") .help_template("test {unknown_tag} test"); assert!(utils::compare_output( app, "MyApp --help", "test {unknown_tag} test\n", false )); } #[test] fn template_author_version() { let app = App::new("MyApp") .version("1.0") .author("Kevin K. ") .about("Does awesome things") .help_template("{author}\n{version}\n{about}\n{bin}"); assert!(utils::compare_output( app, "MyApp --help", "Kevin K. \n1.0\nDoes awesome things\nMyApp\n", false )); } // ---------- fn get_app() -> App<'static> { App::new("MyApp") .version("1.0") .author("Kevin K. ") .about("Does awesome things") .arg( arg!( -c --config "Sets a custom config file" ) .required(false), ) .arg(arg!( "Sets an optional output file" )) .arg(arg!( d: -d ... "Turn debugging information on" )) .subcommand( App::new("test") .about("does testing things") .arg(arg!(-l --list "lists test values")), ) }