clap/tests/positionals.rs

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extern crate clap;
use clap::{App, Arg, ErrorKind};
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#[test]
fn only_pos_follow() {
let r = App::new("onlypos")
.args(&[Arg::from_usage("-f [flag] 'some opt'"),
Arg::from_usage("[arg] 'some arg'")])
.get_matches_from_safe(vec!["", "--", "-f"]);
assert!(r.is_ok());
let m = r.unwrap();
assert!(m.is_present("arg"));
assert!(!m.is_present("f"));
assert_eq!(m.value_of("arg").unwrap(), "-f");
}
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#[test]
fn positional() {
let m = App::new("positional")
.args(&[
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Arg::from_usage("-f, --flag 'some flag'"),
Arg::with_name("positional")
.index(1)
])
.get_matches_from(vec!["", "-f", "test"]);
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assert!(m.is_present("positional"));
assert!(m.is_present("flag"));
assert_eq!(m.value_of("positional").unwrap(), "test");
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let m = App::new("positional")
.args(&[
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Arg::from_usage("-f, --flag 'some flag'"),
Arg::with_name("positional")
.index(1)
])
.get_matches_from(vec!["", "test", "--flag"]);
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assert!(m.is_present("positional"));
assert!(m.is_present("flag"));
assert_eq!(m.value_of("positional").unwrap(), "test");
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}
#[test]
fn lots_o_vals() {
let r = App::new("opts")
.arg(
Arg::from_usage("[opt]... 'some pos'"),
)
.get_matches_from_safe(vec!["",
"some", "some", "some", "some", "some", "some", "some", "some", "some", "some", "some",
"some", "some", "some", "some", "some", "some", "some", "some", "some", "some", "some",
"some", "some", "some", "some", "some", "some", "some", "some", "some", "some", "some",
"some", "some", "some", "some", "some", "some", "some", "some", "some", "some", "some",
"some", "some", "some", "some", "some", "some", "some", "some", "some", "some", "some",
"some", "some", "some", "some", "some", "some", "some", "some", "some", "some", "some",
"some", "some", "some", "some", "some", "some", "some", "some", "some", "some", "some",
"some", "some", "some", "some", "some", "some", "some", "some", "some", "some", "some",
"some", "some", "some", "some", "some", "some", "some", "some", "some", "some", "some",
"some", "some", "some", "some", "some", "some", "some", "some", "some", "some", "some",
"some", "some", "some", "some", "some", "some", "some", "some", "some", "some", "some",
"some", "some", "some", "some", "some", "some", "some", "some", "some", "some", "some",
"some", "some", "some", "some", "some", "some", "some", "some", "some", "some", "some",
"some", "some", "some", "some", "some", "some", "some", "some", "some", "some", "some",
"some", "some", "some", "some", "some", "some", "some", "some", "some", "some", "some",
"some", "some", "some", "some", "some", "some", "some", "some", "some", "some", "some",
"some", "some", "some", "some", "some", "some", "some", "some", "some", "some", "some",
"some", "some", "some", "some", "some", "some", "some", "some", "some", "some", "some",
"some", "some", "some", "some", "some", "some", "some", "some", "some", "some", "some",
"some", "some", "some", "some", "some", "some", "some", "some", "some", "some", "some",
"some", "some", "some", "some", "some", "some", "some", "some", "some", "some", "some",
"some", "some", "some", "some", "some", "some", "some", "some", "some", "some", "some",
"some", "some", "some", "some", "some", "some", "some", "some", "some", "some", "some",
"some", "some", "some", "some", "some", "some", "some", "some", "some", "some", "some",
"some", "some", "some", "some", "some", "some", "some", "some", "some", "some", "some",
"some", "some", "some", "some", "some", "some", "some", "some", "some", "some", "some",
"some", "some", "some", "some", "some", "some", "some", "some", "some", "some", "some",
]);
assert!(r.is_ok());
let m = r.unwrap();
assert!(m.is_present("opt"));
assert_eq!(m.values_of("opt").unwrap().collect::<Vec<_>>().len(), 297); // i.e. more than u8
}
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#[test]
fn positional_multiple() {
let m = App::new("positional_multiple")
.args(&[
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Arg::from_usage("-f, --flag 'some flag'"),
Arg::with_name("positional")
.index(1)
.multiple(true)
])
.get_matches_from(vec!["", "-f", "test1", "test2", "test3"]);
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assert!(m.is_present("positional"));
assert!(m.is_present("flag"));
assert_eq!(&*m.values_of("positional").unwrap().collect::<Vec<_>>(), &["test1", "test2", "test3"]);
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let m = App::new("positional_multiple")
.args(&[
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Arg::from_usage("-f, --flag 'some flag'"),
Arg::with_name("positional")
.index(1)
.multiple(true)
])
.get_matches_from(vec!["", "test1", "test2", "test3", "--flag"]);
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assert!(m.is_present("positional"));
assert!(m.is_present("flag"));
assert_eq!(&*m.values_of("positional").unwrap().collect::<Vec<_>>(), &["test1", "test2", "test3"]);
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}
#[test]
fn positional_multiple_2() {
let result = App::new("positional_multiple")
.args(&[
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Arg::from_usage("-f, --flag 'some flag'"),
Arg::with_name("positional")
.index(1)
])
.get_matches_from_safe(vec!["", "-f", "test1", "test2", "test3"]);
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assert!(result.is_err());
let err = result.err().unwrap();
assert_eq!(err.kind, ErrorKind::UnknownArgument);
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}
#[test]
fn positional_possible_values() {
let m = App::new("positional_possible_values")
.args(&[
Arg::from_usage("-f, --flag 'some flag'"),
Arg::with_name("positional")
.index(1)
.possible_value("test123")
])
.get_matches_from(vec!["", "-f", "test123"]);
assert!(m.is_present("positional"));
assert!(m.is_present("flag"));
assert_eq!(&*m.values_of("positional").unwrap().collect::<Vec<_>>(), &["test123"]);
}
#[test]
fn create_positional() {
let _ = App::new("test")
.arg(Arg::with_name("test")
.index(1)
.help("testing testing"))
.get_matches();
}
#[test]
fn positional_hyphen_does_not_panic() {
let _ = App::new("test")
.arg(Arg::with_name("dummy"))
.get_matches_from(vec!["test", "-"]);
}
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#[test]
fn default_values_default() {
let r = App::new("df")
.arg( Arg::from_usage("[arg] 'some opt'")
.default_value("default"))
.get_matches_from_safe(vec![""]);
assert!(r.is_ok());
let m = r.unwrap();
assert!(m.is_present("arg"));
assert_eq!(m.value_of("arg").unwrap(), "default");
}
#[test]
fn default_values_user_value() {
let r = App::new("df")
.arg( Arg::from_usage("[arg] 'some arg'")
.default_value("default"))
.get_matches_from_safe(vec!["", "value"]);
assert!(r.is_ok());
let m = r.unwrap();
assert!(m.is_present("arg"));
assert_eq!(m.value_of("arg").unwrap(), "value");
}
#[test]
fn single_positional_usage_string() {
let m = App::new("test").arg_from_usage("[FILE] 'some file'").get_matches_from(vec!["test"]);
assert_eq!(m.usage(), "USAGE:\n test [FILE]");
}
#[test]
fn single_positional_multiple_usage_string() {
let m = App::new("test").arg_from_usage("[FILE]... 'some file'").get_matches_from(vec!["test"]);
assert_eq!(m.usage(), "USAGE:\n test [FILE]...");
}
#[test]
fn multiple_positional_usage_string() {
let m = App::new("test")
.arg_from_usage("[FILE] 'some file'")
.arg_from_usage("[FILES]... 'some file'")
.get_matches_from(vec!["test"]);
assert_eq!(m.usage(), "USAGE:\n test [ARGS]");
}
#[test]
fn multiple_positional_one_required_usage_string() {
let m = App::new("test")
.arg_from_usage("<FILE> 'some file'")
.arg_from_usage("[FILES]... 'some file'")
.get_matches_from(vec!["test", "file"]);
assert_eq!(m.usage(), "USAGE:\n test <FILE> [ARGS]");
}
#[test]
fn single_positional_required_usage_string() {
let m = App::new("test")
.arg_from_usage("<FILE> 'some file'")
.get_matches_from(vec!["test", "file"]);
assert_eq!(m.usage(), "USAGE:\n test <FILE>");
}