clap/tests/possible_values.rs

extern crate clap;
extern crate regex;

include!("../clap-test.rs");

use clap::{App, Arg, ErrorKind};

static PV_ERROR: &'static str = "error: 'slo' isn't a valid value for '--Option <option3>'
\t[values: fast, slow]

\tDid you mean 'slow'?

USAGE:
    clap-test --Option <option3>

For more information try --help";

#[test]
fn possible_values_of_positional() {
    let m = App::new("possible_values")
        .arg(Arg::with_name("positional")
            .index(1)
            .possible_value("test123"))
        .get_matches_from_safe(vec!["myprog", "test123"]);

    assert!(m.is_ok());
    let m = m.unwrap();

    assert!(m.is_present("positional"));
    assert_eq!(m.value_of("positional"), Some("test123"));
}

#[test]
fn possible_values_of_positional_fail() {
    let m = App::new("possible_values")
        .arg(Arg::with_name("positional")
            .index(1)
            .possible_value("test123"))
        .get_matches_from_safe(vec!["myprog", "notest"]);

    assert!(m.is_err());
    assert_eq!(m.unwrap_err().kind, ErrorKind::InvalidValue);
}

#[test]
fn possible_values_of_positional_multiple() {
    let m = App::new("possible_values")
        .arg(Arg::with_name("positional")
            .index(1)
            .possible_value("test123")
            .possible_value("test321")
            .multiple(true))
        .get_matches_from_safe(vec!["myprog", "test123", "test321"]);

    assert!(m.is_ok());
    let m = m.unwrap();

    assert!(m.is_present("positional"));
    assert_eq!(m.values_of("positional").unwrap().collect::<Vec<_>>(), vec!["test123", "test321"]);
}

#[test]
fn possible_values_of_positional_multiple_fail() {
    let m = App::new("possible_values")
        .arg(Arg::with_name("positional")
            .index(1)
            .possible_value("test123")
            .possible_value("test321")
            .multiple(true))
        .get_matches_from_safe(vec!["myprog", "test123", "notest"]);

    assert!(m.is_err());
    assert_eq!(m.unwrap_err().kind, ErrorKind::InvalidValue);
}

#[test]
fn possible_values_of_option() {
    let m = App::new("possible_values")
        .arg(Arg::with_name("option")
            .short("-o")
            .long("--option")
            .takes_value(true)
            .possible_value("test123"))
        .get_matches_from_safe(vec!["myprog", "--option", "test123"]);

    assert!(m.is_ok());
    let m = m.unwrap();

    assert!(m.is_present("option"));
    assert_eq!(m.value_of("option"), Some("test123"));
}

#[test]
fn possible_values_of_option_fail() {
    let m = App::new("possible_values")
        .arg(Arg::with_name("option")
            .short("-o")
            .long("--option")
            .takes_value(true)
            .possible_value("test123"))
        .get_matches_from_safe(vec!["myprog", "--option", "notest"]);

    assert!(m.is_err());
    assert_eq!(m.unwrap_err().kind, ErrorKind::InvalidValue);
}

#[test]
fn possible_values_of_option_multiple() {
    let m = App::new("possible_values")
        .arg(Arg::with_name("option")
            .short("-o")
            .long("--option")
            .takes_value(true)
            .possible_value("test123")
            .possible_value("test321")
            .multiple(true))
        .get_matches_from_safe(vec![
            "",
            "--option", "test123",
            "--option", "test321",
        ]);

    assert!(m.is_ok());
    let m = m.unwrap();

    assert!(m.is_present("option"));
    assert_eq!(m.values_of("option").unwrap().collect::<Vec<_>>(), vec!["test123", "test321"]);
}

#[test]
fn possible_values_of_option_multiple_fail() {
    let m = App::new("possible_values")
        .arg(Arg::with_name("option")
            .short("-o")
            .long("--option")
            .takes_value(true)
            .possible_value("test123")
            .possible_value("test321")
            .multiple(true))
        .get_matches_from_safe(vec![
            "",
            "--option", "test123",
            "--option", "notest",
        ]);

    assert!(m.is_err());
    assert_eq!(m.unwrap_err().kind, ErrorKind::InvalidValue);
}

#[test]
fn possible_values_output() {
    test::check_err_output(test::complex_app(), "clap-test -O slo", PV_ERROR, true);
}