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use clap::{arg, Arg, ArgAction, Command};
#[test]
fn multiple_occurrences_of_flags_long() {
let m = Command::new("mo_flags_long")
.args_override_self(true)
.arg(arg!(--multflag "allowed multiple flag").action(ArgAction::SetTrue))
.arg(arg!(--flag "disallowed multiple flag").action(ArgAction::SetTrue))
.try_get_matches_from(vec!["", "--multflag", "--flag", "--multflag"])
.unwrap();
assert!(m.contains_id("multflag"));
assert_eq!(m.get_one::<bool>("multflag").copied(), Some(true));
assert!(m.contains_id("flag"));
assert_eq!(m.get_one::<bool>("flag").copied(), Some(true));
}
#[test]
fn multiple_occurrences_of_flags_short() {
let m = Command::new("mo_flags_short")
.args_override_self(true)
.arg(arg!(-m --multflag "allowed multiple flag").action(ArgAction::SetTrue))
.arg(arg!(-f --flag "disallowed multiple flag").action(ArgAction::SetTrue))
.try_get_matches_from(vec!["", "-m", "-f", "-m"])
.unwrap();
assert!(m.contains_id("multflag"));
assert_eq!(m.get_one::<bool>("multflag").copied(), Some(true));
assert!(m.contains_id("flag"));
assert_eq!(m.get_one::<bool>("flag").copied(), Some(true));
}
#[test]
fn multiple_occurrences_of_positional() {
let cmd = Command::new("test").arg(Arg::new("multi").num_args(1..).action(ArgAction::Append));
let m = cmd
.clone()
.try_get_matches_from(["test"])
.expect("zero occurrences work");
assert!(!m.contains_id("multi"));
assert!(m.get_many::<String>("multi").is_none());
let m = cmd
.clone()
.try_get_matches_from(["test", "one"])
.expect("single occurrence work");
assert!(m.contains_id("multi"));
assert_eq!(
m.get_many::<String>("multi")
.unwrap()
.map(|v| v.as_str())
.collect::<Vec<_>>(),
["one"]
);
let m = cmd
.clone()
.try_get_matches_from(["test", "one", "two", "three", "four"])
.expect("many occurrences work");
assert!(m.contains_id("multi"));
assert_eq!(
m.get_many::<String>("multi")
.unwrap()
.map(|v| v.as_str())
.collect::<Vec<_>>(),
["one", "two", "three", "four"]
);
}
#[test]
fn multiple_occurrences_of_flags_large_quantity() {
let cmd = Command::new("mo_flags_large_qty")
.arg(arg!(-m --multflag "allowed multiple flag").action(ArgAction::Count));
let args: Vec<&str> = vec![""].into_iter().chain(vec!["-m"; 200]).collect();
let m = cmd.clone().try_get_matches_from(args).unwrap();
assert!(m.contains_id("multflag"));
assert_eq!(m.get_one::<u8>("multflag").copied(), Some(200));
let args: Vec<&str> = vec![""].into_iter().chain(vec!["-m"; 500]).collect();
let m = cmd.try_get_matches_from(args).unwrap();
assert!(m.contains_id("multflag"));
assert_eq!(m.get_one::<u8>("multflag").copied(), Some(u8::MAX));
}
#[cfg(feature = "env")]
#[test]
fn multiple_occurrences_of_before_env() {
let cmd = Command::new("mo_before_env").arg(
Arg::new("verbose")
.env("VERBOSE")
.short('v')
.long("verbose")
.action(ArgAction::Count),
);
let m = cmd.clone().try_get_matches_from(vec![""]);
assert!(m.is_ok(), "{}", m.unwrap_err());
let m = m.unwrap();
assert_eq!(m.get_one::<u8>("verbose").copied(), Some(0));
let m = cmd.clone().try_get_matches_from(vec!["", "-v"]);
assert!(m.is_ok(), "{}", m.unwrap_err());
let m = m.unwrap();
assert_eq!(m.get_one::<u8>("verbose").copied(), Some(1));
let m = cmd.clone().try_get_matches_from(vec!["", "-vv"]);
assert!(m.is_ok(), "{}", m.unwrap_err());
let m = m.unwrap();
assert_eq!(m.get_one::<u8>("verbose").copied(), Some(2));
let m = cmd.clone().try_get_matches_from(vec!["", "-vvv"]);
assert!(m.is_ok(), "{}", m.unwrap_err());
let m = m.unwrap();
assert_eq!(m.get_one::<u8>("verbose").copied(), Some(3));
}
#[cfg(feature = "env")]
#[test]
fn multiple_occurrences_of_after_env() {
let cmd = Command::new("mo_after_env").arg(
Arg::new("verbose")
.short('v')
.long("verbose")
.action(ArgAction::Count)
.env("VERBOSE"),
);
let m = cmd.clone().try_get_matches_from(vec![""]);
assert!(m.is_ok(), "{}", m.unwrap_err());
let m = m.unwrap();
assert_eq!(m.get_one::<u8>("verbose").copied(), Some(0));
let m = cmd.clone().try_get_matches_from(vec!["", "-v"]);
assert!(m.is_ok(), "{}", m.unwrap_err());
let m = m.unwrap();
assert_eq!(m.get_one::<u8>("verbose").copied(), Some(1));
let m = cmd.clone().try_get_matches_from(vec!["", "-vv"]);
assert!(m.is_ok(), "{}", m.unwrap_err());
let m = m.unwrap();
assert_eq!(m.get_one::<u8>("verbose").copied(), Some(2));
let m = cmd.clone().try_get_matches_from(vec!["", "-vvv"]);
assert!(m.is_ok(), "{}", m.unwrap_err());
let m = m.unwrap();
assert_eq!(m.get_one::<u8>("verbose").copied(), Some(3));
}
|
