clap/tests/builder/multiple_occurrences.rs
Ed Page 045bf99ae0 test: Consolidate builder tests
This is prep for moving the derive tests.  Besides organizing the test
folder for each API, this should reduce link time at the cost of
re-compiling more when a test changes.
2021-11-30 10:07:05 -06:00

237 lines
7.8 KiB
Rust

use clap::{arg, App, Arg, ErrorKind};
#[test]
fn multiple_occurrences_of_flags_long() {
let m = App::new("mo_flags_long")
.arg(arg!(--multflag "allowed multiple flag").multiple_occurrences(true))
.arg(arg!(--flag "disallowed multiple flag"))
.get_matches_from(vec!["", "--multflag", "--flag", "--multflag"]);
assert!(m.is_present("multflag"));
assert_eq!(m.occurrences_of("multflag"), 2);
assert!(m.is_present("flag"));
assert_eq!(m.occurrences_of("flag"), 1)
}
#[test]
fn multiple_occurrences_of_flags_short() {
let m = App::new("mo_flags_short")
.arg(arg!(-m --multflag "allowed multiple flag").multiple_occurrences(true))
.arg(arg!(-f --flag "disallowed multiple flag"))
.get_matches_from(vec!["", "-m", "-f", "-m"]);
assert!(m.is_present("multflag"));
assert_eq!(m.occurrences_of("multflag"), 2);
assert!(m.is_present("flag"));
assert_eq!(m.occurrences_of("flag"), 1);
}
#[test]
fn multiple_occurrences_of_flags_mixed() {
let m = App::new("mo_flags_mixed")
.arg(arg!(-m --multflag1 "allowed multiple flag").multiple_occurrences(true))
.arg(arg!(-n --multflag2 "another allowed multiple flag").multiple_occurrences(true))
.arg(arg!(-f --flag "disallowed multiple flag"))
.get_matches_from(vec![
"",
"-m",
"-f",
"-n",
"--multflag1",
"-m",
"--multflag2",
]);
assert!(m.is_present("multflag1"));
assert_eq!(m.occurrences_of("multflag1"), 3);
assert!(m.is_present("multflag2"));
assert_eq!(m.occurrences_of("multflag2"), 2);
assert!(m.is_present("flag"));
assert_eq!(m.occurrences_of("flag"), 1);
}
#[test]
fn multiple_occurrences_of_positional() {
let app = App::new("test").arg(Arg::new("multi").multiple_occurrences(true));
let m = app
.clone()
.try_get_matches_from(&["test"])
.expect("zero occurrences work");
assert!(!m.is_present("multi"));
assert_eq!(m.occurrences_of("multi"), 0);
assert!(m.values_of("multi").is_none());
let m = app
.clone()
.try_get_matches_from(&["test", "one"])
.expect("single occurrence work");
assert!(m.is_present("multi"));
assert_eq!(m.occurrences_of("multi"), 1);
assert_eq!(m.values_of("multi").unwrap().collect::<Vec<_>>(), ["one"]);
let m = app
.clone()
.try_get_matches_from(&["test", "one", "two", "three", "four"])
.expect("many occurrences work");
assert!(m.is_present("multi"));
assert_eq!(m.occurrences_of("multi"), 4);
assert_eq!(
m.values_of("multi").unwrap().collect::<Vec<_>>(),
["one", "two", "three", "four"]
);
}
#[test]
fn multiple_occurrences_of_flags_large_quantity() {
let args: Vec<&str> = vec![""]
.into_iter()
.chain(vec!["-m"; 1024].into_iter())
.collect();
let m = App::new("mo_flags_large_qty")
.arg(arg!(-m --multflag "allowed multiple flag").multiple_occurrences(true))
.get_matches_from(args);
assert!(m.is_present("multflag"));
assert_eq!(m.occurrences_of("multflag"), 1024);
}
#[cfg(feature = "env")]
#[test]
fn multiple_occurrences_of_before_env() {
let app = App::new("mo_before_env").arg(
Arg::new("verbose")
.env("VERBOSE")
.short('v')
.long("verbose")
.takes_value(false)
.multiple_occurrences(true),
);
let m = app.clone().try_get_matches_from(vec![""]);
assert!(m.is_ok(), "{}", m.unwrap_err());
assert_eq!(m.unwrap().occurrences_of("verbose"), 0);
let m = app.clone().try_get_matches_from(vec!["", "-v"]);
assert!(m.is_ok(), "{}", m.unwrap_err());
assert_eq!(m.unwrap().occurrences_of("verbose"), 1);
let m = app.clone().try_get_matches_from(vec!["", "-vv"]);
assert!(m.is_ok(), "{}", m.unwrap_err());
assert_eq!(m.unwrap().occurrences_of("verbose"), 2);
let m = app.clone().try_get_matches_from(vec!["", "-vvv"]);
assert!(m.is_ok(), "{}", m.unwrap_err());
assert_eq!(m.unwrap().occurrences_of("verbose"), 3);
}
#[cfg(feature = "env")]
#[test]
fn multiple_occurrences_of_after_env() {
let app = App::new("mo_after_env").arg(
Arg::new("verbose")
.short('v')
.long("verbose")
.takes_value(false)
.multiple_occurrences(true)
.env("VERBOSE"),
);
let m = app.clone().try_get_matches_from(vec![""]);
assert!(m.is_ok(), "{}", m.unwrap_err());
assert_eq!(m.unwrap().occurrences_of("verbose"), 0);
let m = app.clone().try_get_matches_from(vec!["", "-v"]);
assert!(m.is_ok(), "{}", m.unwrap_err());
assert_eq!(m.unwrap().occurrences_of("verbose"), 1);
let m = app.clone().try_get_matches_from(vec!["", "-vv"]);
assert!(m.is_ok(), "{}", m.unwrap_err());
assert_eq!(m.unwrap().occurrences_of("verbose"), 2);
let m = app.clone().try_get_matches_from(vec!["", "-vvv"]);
assert!(m.is_ok(), "{}", m.unwrap_err());
assert_eq!(m.unwrap().occurrences_of("verbose"), 3);
}
#[test]
fn max_occurrences_implies_multiple_occurrences() {
let app = App::new("prog").arg(
Arg::new("verbose")
.short('v')
.long("verbose")
.max_occurrences(3),
);
let m = app.try_get_matches_from(vec!["prog", "-vvv"]);
assert!(m.is_ok(), "{}", m.unwrap_err());
assert_eq!(m.unwrap().occurrences_of("verbose"), 3);
// One max should not imply multiple occurrences
let app = App::new("prog").arg(
Arg::new("verbose")
.short('v')
.long("verbose")
.max_occurrences(1),
);
let m = app.try_get_matches_from(vec!["prog", "-vvv"]);
assert!(m.is_err());
assert_eq!(m.unwrap_err().kind, ErrorKind::UnexpectedMultipleUsage);
}
#[test]
fn max_occurrences_try_inputs() {
let app = App::new("prog").arg(
Arg::new("verbose")
.short('v')
.long("verbose")
.max_occurrences(3),
);
let m = app.clone().try_get_matches_from(vec!["prog", "-v"]);
assert!(m.is_ok(), "{}", m.unwrap_err());
assert_eq!(m.unwrap().occurrences_of("verbose"), 1);
let m = app.clone().try_get_matches_from(vec!["prog", "-vv"]);
assert!(m.is_ok(), "{}", m.unwrap_err());
assert_eq!(m.unwrap().occurrences_of("verbose"), 2);
let m = app.clone().try_get_matches_from(vec!["prog", "-vvv"]);
assert!(m.is_ok(), "{}", m.unwrap_err());
assert_eq!(m.unwrap().occurrences_of("verbose"), 3);
let m = app.clone().try_get_matches_from(vec!["prog", "-vvvv"]);
assert!(m.is_err());
assert_eq!(m.unwrap_err().kind, ErrorKind::TooManyOccurrences);
let m = app
.clone()
.try_get_matches_from(vec!["prog", "-v", "-v", "-v"]);
assert!(m.is_ok(), "{}", m.unwrap_err());
assert_eq!(m.unwrap().occurrences_of("verbose"), 3);
let m = app
.clone()
.try_get_matches_from(vec!["prog", "-v", "-vv", "-v"]);
assert!(m.is_err());
assert_eq!(m.unwrap_err().kind, ErrorKind::TooManyOccurrences);
}
#[test]
fn max_occurrences_positional() {
let app = App::new("prog").arg(Arg::new("verbose").max_occurrences(3));
let m = app.clone().try_get_matches_from(vec!["prog", "v"]);
assert!(m.is_ok(), "{}", m.unwrap_err());
assert_eq!(m.unwrap().occurrences_of("verbose"), 1);
let m = app.clone().try_get_matches_from(vec!["prog", "v", "v"]);
assert!(m.is_ok(), "{}", m.unwrap_err());
assert_eq!(m.unwrap().occurrences_of("verbose"), 2);
let m = app
.clone()
.try_get_matches_from(vec!["prog", "v", "v", "v"]);
assert!(m.is_ok(), "{}", m.unwrap_err());
assert_eq!(m.unwrap().occurrences_of("verbose"), 3);
let m = app
.clone()
.try_get_matches_from(vec!["prog", "v", "v", "v", "v"]);
assert!(m.is_err());
assert_eq!(m.unwrap_err().kind, ErrorKind::TooManyOccurrences);
}