clap-test.rs - mozsearch

#[allow(unused_imports, dead_code)]

mod test {

    use std::str;

    use std::io::{Cursor, Write};

    use regex::Regex;

    use clap::{App, Arg, SubCommand, ArgGroup};

    fn compare<S, S2>(l: S, r: S2) -> bool

        where S: AsRef<str>,

              S2: AsRef<str>

        let re = Regex::new("\x1b[^m]*m").unwrap();

        // Strip out any mismatching \r character on windows that might sneak in on either side

        let ls = l.as_ref().trim().replace("\r", "");

        let rs = r.as_ref().trim().replace("\r", "");

        let left = re.replace_all(&*ls, "");

        let right = re.replace_all(&*rs, "");

        let b = left == right;

        if !b {

            println!();

            println!("--> left");

            println!("{}", left);

            println!("--> right");

            println!("{}", right);

            println!("--")

    pub fn compare_output(l: App, args: &str, right: &str, stderr: bool) -> bool {

        let mut buf = Cursor::new(Vec::with_capacity(50));

        let res = l.get_matches_from_safe(args.split(' ').collect::<Vec<_>>());

        let err = res.unwrap_err();

        err.write_to(&mut buf).unwrap();

        let content = buf.into_inner();

        let left = String::from_utf8(content).unwrap();

        assert_eq!(stderr, err.use_stderr());

        compare(left, right)

    pub fn compare_output2(l: App, args: &str, right1: &str, right2: &str, stderr: bool) -> bool {

        let mut buf = Cursor::new(Vec::with_capacity(50));

        let res = l.get_matches_from_safe(args.split(' ').collect::<Vec<_>>());

        let err = res.unwrap_err();

        err.write_to(&mut buf).unwrap();

        let content = buf.into_inner();

        let left = String::from_utf8(content).unwrap();

        assert_eq!(stderr, err.use_stderr());

        compare(&*left, right1) || compare(&*left, right2)

    // Legacy tests from the Python script days

    pub fn complex_app() -> App<'static, 'static> {

        let args = "-o --option=[opt]... 'tests options'

                    [positional] 'tests positionals'";

        let opt3_vals = ["fast", "slow"];

        let pos3_vals = ["vi", "emacs"];

        App::new("clap-test")

            .version("v1.4.8")

            .about("tests clap library")

            .author("Kevin K. <kbknapp@gmail.com>")

            .args_from_usage(args)

            .arg(Arg::from_usage("-f --flag... 'tests flags'")

                .global(true))

            .args(&[

                Arg::from_usage("[flag2] -F 'tests flags with exclusions'").conflicts_with("flag").requires("long-option-2"),

                Arg::from_usage("--long-option-2 [option2] 'tests long options with exclusions'").conflicts_with("option").requires("positional2"),

                Arg::from_usage("[positional2] 'tests positionals with exclusions'"),

                Arg::from_usage("-O --Option [option3] 'specific vals'").possible_values(&opt3_vals),

                Arg::from_usage("[positional3]... 'tests specific values'").possible_values(&pos3_vals),

                Arg::from_usage("--multvals [one] [two] 'Tests multiple values, not mult occs'"),

                Arg::from_usage("--multvalsmo... [one] [two] 'Tests multiple values, and mult occs'"),

                Arg::from_usage("--minvals2 [minvals]... 'Tests 2 min vals'").min_values(2),

                Arg::from_usage("--maxvals3 [maxvals]... 'Tests 3 max vals'").max_values(3)

])

            .subcommand(SubCommand::with_name("subcmd")

                                    .about("tests subcommands")

                                    .version("0.1")

                                    .author("Kevin K. <kbknapp@gmail.com>")

                                    .arg_from_usage("-o --option [scoption]... 'tests options'")

                                    .arg_from_usage("-s --subcmdarg [subcmdarg] 'tests other args'")

                                    .arg_from_usage("[scpositional] 'tests positionals'"))