mirror of
https://github.com/clap-rs/clap
synced 2024-12-14 14:52:33 +00:00
762b06fba4
In text communication you need to balance - Scannability, putting the most important information upfront - Brevity so people don't get lost in the message - Softness to help ease people through a frustrating experience I feel we weren't doing great on the first two points, so tried to iterate on the messages to improve them. I hope we aren't suffering too much on the third point as a side effect.
639 lines
17 KiB
Rust
639 lines
17 KiB
Rust
use clap::{arg, error::ErrorKind, Arg, ArgAction, Command};
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use super::utils;
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#[test]
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fn subcommand() {
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let m = Command::new("test")
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.subcommand(
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Command::new("some").arg(
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Arg::new("test")
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.short('t')
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.long("test")
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.action(ArgAction::Set)
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.help("testing testing"),
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),
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)
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.arg(Arg::new("other").long("other"))
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.try_get_matches_from(vec!["myprog", "some", "--test", "testing"])
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.unwrap();
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assert_eq!(m.subcommand_name().unwrap(), "some");
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let sub_m = m.subcommand_matches("some").unwrap();
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assert!(sub_m.contains_id("test"));
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assert_eq!(
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sub_m.get_one::<String>("test").map(|v| v.as_str()).unwrap(),
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"testing"
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);
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}
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#[test]
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fn subcommand_none_given() {
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let m = Command::new("test")
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.subcommand(
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Command::new("some").arg(
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Arg::new("test")
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.short('t')
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.long("test")
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.action(ArgAction::Set)
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.help("testing testing"),
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),
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)
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.arg(Arg::new("other").long("other"))
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.try_get_matches_from(vec![""])
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.unwrap();
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assert!(m.subcommand_name().is_none());
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}
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#[test]
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fn subcommand_multiple() {
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let m = Command::new("test")
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.subcommands(vec![
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Command::new("some").arg(
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Arg::new("test")
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.short('t')
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.long("test")
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.action(ArgAction::Set)
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.help("testing testing"),
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),
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Command::new("add").arg(Arg::new("roster").short('r')),
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])
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.arg(Arg::new("other").long("other"))
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.try_get_matches_from(vec!["myprog", "some", "--test", "testing"])
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.unwrap();
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assert!(m.subcommand_matches("some").is_some());
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assert!(m.subcommand_matches("add").is_none());
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assert_eq!(m.subcommand_name().unwrap(), "some");
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let sub_m = m.subcommand_matches("some").unwrap();
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assert!(sub_m.contains_id("test"));
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assert_eq!(
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sub_m.get_one::<String>("test").map(|v| v.as_str()).unwrap(),
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"testing"
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);
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}
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#[test]
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fn single_alias() {
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let m = Command::new("myprog")
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.subcommand(Command::new("test").alias("do-stuff"))
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.try_get_matches_from(vec!["myprog", "do-stuff"])
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.unwrap();
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assert_eq!(m.subcommand_name(), Some("test"));
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}
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#[test]
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fn multiple_aliases() {
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let m = Command::new("myprog")
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.subcommand(Command::new("test").aliases(["do-stuff", "test-stuff"]))
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.try_get_matches_from(vec!["myprog", "test-stuff"])
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.unwrap();
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assert_eq!(m.subcommand_name(), Some("test"));
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}
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#[test]
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#[cfg(feature = "suggestions")]
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#[cfg(feature = "error-context")]
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fn subcmd_did_you_mean_output() {
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#[cfg(feature = "suggestions")]
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static DYM_SUBCMD: &str = "\
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error: unrecognized subcommand 'subcm'
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note: subcommand 'subcmd' exists
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note: to pass 'subcm' as a value, use 'dym -- subcm'
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Usage: dym [COMMAND]
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For more information, try '--help'.
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";
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let cmd = Command::new("dym").subcommand(Command::new("subcmd"));
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utils::assert_output(cmd, "dym subcm", DYM_SUBCMD, true);
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}
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#[test]
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#[cfg(feature = "suggestions")]
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#[cfg(feature = "error-context")]
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fn subcmd_did_you_mean_output_ambiguous() {
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#[cfg(feature = "suggestions")]
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static DYM_SUBCMD_AMBIGUOUS: &str = "\
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error: unrecognized subcommand 'te'
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note: subcommand 'test', 'temp' exist
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note: to pass 'te' as a value, use 'dym -- te'
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Usage: dym [COMMAND]
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For more information, try '--help'.
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";
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let cmd = Command::new("dym")
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.subcommand(Command::new("test"))
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.subcommand(Command::new("temp"));
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utils::assert_output(cmd, "dym te", DYM_SUBCMD_AMBIGUOUS, true);
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}
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#[test]
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#[cfg(feature = "suggestions")]
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#[cfg(feature = "error-context")]
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fn subcmd_did_you_mean_output_arg() {
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static EXPECTED: &str = "\
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error: unexpected argument '--subcmarg'
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note: 'subcmd --subcmdarg' exists
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Usage: dym [COMMAND]
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For more information, try '--help'.
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";
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let cmd = Command::new("dym")
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.subcommand(Command::new("subcmd").arg(arg!(-s --subcmdarg <subcmdarg> "tests")));
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utils::assert_output(cmd, "dym --subcmarg subcmd", EXPECTED, true);
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}
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#[test]
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#[cfg(feature = "suggestions")]
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#[cfg(feature = "error-context")]
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fn subcmd_did_you_mean_output_arg_false_positives() {
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static EXPECTED: &str = "\
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error: unexpected argument '--subcmarg'
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Usage: dym [COMMAND]
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For more information, try '--help'.
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";
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let cmd = Command::new("dym")
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.subcommand(Command::new("subcmd").arg(arg!(-s --subcmdarg <subcmdarg> "tests")));
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utils::assert_output(cmd, "dym --subcmarg foo", EXPECTED, true);
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}
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#[test]
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fn alias_help() {
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let m = Command::new("myprog")
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.subcommand(Command::new("test").alias("do-stuff"))
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.try_get_matches_from(vec!["myprog", "help", "do-stuff"]);
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assert!(m.is_err());
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assert_eq!(m.unwrap_err().kind(), ErrorKind::DisplayHelp);
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}
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#[test]
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fn visible_aliases_help_output() {
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static VISIBLE_ALIAS_HELP: &str = "\
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Usage: clap-test [COMMAND]
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Commands:
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test Some help [aliases: dongle, done]
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help Print this message or the help of the given subcommand(s)
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Options:
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-h, --help Print help
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-V, --version Print version
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";
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let cmd = Command::new("clap-test").version("2.6").subcommand(
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Command::new("test")
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.about("Some help")
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.alias("invisible")
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.visible_alias("dongle")
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.visible_alias("done"),
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);
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utils::assert_output(cmd, "clap-test --help", VISIBLE_ALIAS_HELP, false);
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}
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#[test]
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fn invisible_aliases_help_output() {
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static INVISIBLE_ALIAS_HELP: &str = "\
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Usage: clap-test [COMMAND]
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Commands:
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test Some help
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help Print this message or the help of the given subcommand(s)
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Options:
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-h, --help Print help
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-V, --version Print version
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";
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let cmd = Command::new("clap-test")
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.version("2.6")
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.subcommand(Command::new("test").about("Some help").alias("invisible"));
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utils::assert_output(cmd, "clap-test --help", INVISIBLE_ALIAS_HELP, false);
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}
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#[test]
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#[cfg(feature = "unstable-replace")]
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fn replace() {
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let m = Command::new("prog")
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.subcommand(
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Command::new("module").subcommand(Command::new("install").about("Install module")),
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)
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.replace("install", ["module", "install"])
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.try_get_matches_from(vec!["prog", "install"])
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.unwrap();
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assert_eq!(m.subcommand_name(), Some("module"));
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assert_eq!(
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m.subcommand_matches("module").unwrap().subcommand_name(),
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Some("install")
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);
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}
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#[test]
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fn issue_1031_args_with_same_name() {
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let res = Command::new("prog")
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.arg(arg!(--"ui-path" <PATH>).required(true))
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.subcommand(Command::new("signer"))
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.try_get_matches_from(vec!["prog", "--ui-path", "signer"]);
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assert!(res.is_ok(), "{:?}", res.unwrap_err().kind());
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let m = res.unwrap();
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assert_eq!(
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m.get_one::<String>("ui-path").map(|v| v.as_str()),
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Some("signer")
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);
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}
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#[test]
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fn issue_1031_args_with_same_name_no_more_vals() {
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let res = Command::new("prog")
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.arg(arg!(--"ui-path" <PATH>).required(true))
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.subcommand(Command::new("signer"))
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.try_get_matches_from(vec!["prog", "--ui-path", "value", "signer"]);
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assert!(res.is_ok(), "{:?}", res.unwrap_err().kind());
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let m = res.unwrap();
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assert_eq!(
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m.get_one::<String>("ui-path").map(|v| v.as_str()),
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Some("value")
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);
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assert_eq!(m.subcommand_name(), Some("signer"));
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}
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#[test]
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fn issue_1161_multiple_hyphen_hyphen() {
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// from example 22
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let res = Command::new("myprog")
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.arg(Arg::new("eff").short('f'))
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.arg(Arg::new("pea").short('p').action(ArgAction::Set))
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.arg(
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Arg::new("slop")
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.action(ArgAction::Set)
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.num_args(1..)
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.last(true),
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)
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.try_get_matches_from(vec![
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"-f",
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"-p=bob",
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"--",
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"sloppy",
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"slop",
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"-a",
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"--",
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"subprogram",
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"position",
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"args",
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]);
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assert!(res.is_ok(), "{:?}", res.unwrap_err().kind());
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let m = res.unwrap();
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let expected = Some(vec![
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"sloppy",
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"slop",
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"-a",
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"--",
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"subprogram",
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"position",
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"args",
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]);
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let actual = m
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.get_many::<String>("slop")
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.map(|vals| vals.map(|s| s.as_str()).collect::<Vec<_>>());
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assert_eq!(expected, actual);
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}
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#[test]
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fn issue_1722_not_emit_error_when_arg_follows_similar_to_a_subcommand() {
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let m = Command::new("myprog")
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.subcommand(Command::new("subcommand"))
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.arg(Arg::new("argument"))
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.try_get_matches_from(vec!["myprog", "--", "subcommand"]);
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assert_eq!(
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m.unwrap().get_one::<String>("argument").map(|v| v.as_str()),
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Some("subcommand")
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);
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}
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#[test]
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fn subcommand_placeholder_test() {
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let mut cmd = Command::new("myprog")
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.subcommand(Command::new("subcommand"))
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.subcommand_value_name("TEST_PLACEHOLDER")
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.subcommand_help_heading("TEST_HEADER");
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assert_eq!(
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&cmd.render_usage().to_string(),
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"Usage: myprog [TEST_PLACEHOLDER]"
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);
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let help_text = cmd.render_help().to_string();
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assert!(help_text.contains("TEST_HEADER:"));
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}
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#[test]
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#[cfg(feature = "error-context")]
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fn subcommand_used_after_double_dash() {
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static SUBCMD_AFTER_DOUBLE_DASH: &str = "\
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error: unexpected argument 'subcmd'
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note: subcommand 'subcmd' exists; to use it, remove the '--' before it
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Usage: cmd [COMMAND]
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For more information, try '--help'.
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";
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let cmd = Command::new("cmd").subcommand(Command::new("subcmd"));
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utils::assert_output(cmd, "cmd -- subcmd", SUBCMD_AFTER_DOUBLE_DASH, true);
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}
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#[test]
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fn subcommand_after_argument() {
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let m = Command::new("myprog")
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.arg(Arg::new("some_text"))
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.subcommand(Command::new("test"))
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.try_get_matches_from(vec!["myprog", "teat", "test"])
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.unwrap();
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assert_eq!(
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m.get_one::<String>("some_text").map(|v| v.as_str()),
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Some("teat")
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);
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assert_eq!(m.subcommand().unwrap().0, "test");
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}
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#[test]
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fn subcommand_after_argument_looks_like_help() {
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let m = Command::new("myprog")
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.arg(Arg::new("some_text"))
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.subcommand(Command::new("test"))
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.try_get_matches_from(vec!["myprog", "helt", "test"])
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.unwrap();
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assert_eq!(
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m.get_one::<String>("some_text").map(|v| v.as_str()),
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Some("helt")
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);
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assert_eq!(m.subcommand().unwrap().0, "test");
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}
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#[test]
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fn issue_2494_subcommand_is_present() {
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let cmd = Command::new("opt")
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.arg(Arg::new("global").long("global").action(ArgAction::SetTrue))
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.subcommand(Command::new("global"));
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let m = cmd
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.clone()
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.try_get_matches_from(["opt", "--global", "global"])
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.unwrap();
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assert_eq!(m.subcommand_name().unwrap(), "global");
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assert!(*m.get_one::<bool>("global").expect("defaulted by clap"));
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let m = cmd
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.clone()
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.try_get_matches_from(["opt", "--global"])
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.unwrap();
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assert!(m.subcommand_name().is_none());
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assert!(*m.get_one::<bool>("global").expect("defaulted by clap"));
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let m = cmd.try_get_matches_from(["opt", "global"]).unwrap();
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assert_eq!(m.subcommand_name().unwrap(), "global");
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assert!(!*m.get_one::<bool>("global").expect("defaulted by clap"));
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}
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#[test]
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#[cfg(feature = "error-context")]
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fn subcommand_not_recognized() {
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let cmd = Command::new("fake")
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.subcommand(Command::new("sub"))
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.disable_help_subcommand(true)
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.infer_subcommands(true);
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utils::assert_output(
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cmd,
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"fake help",
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"error: unrecognized subcommand 'help'
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Usage: fake [COMMAND]
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For more information, try '--help'.
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",
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true,
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);
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}
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#[test]
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fn busybox_like_multicall() {
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fn applet_commands() -> [Command; 2] {
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[Command::new("true"), Command::new("false")]
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}
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let cmd = Command::new("busybox")
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.multicall(true)
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.subcommand(Command::new("busybox").subcommands(applet_commands()))
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.subcommands(applet_commands());
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let m = cmd
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.clone()
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.try_get_matches_from(["busybox", "true"])
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.unwrap();
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assert_eq!(m.subcommand_name(), Some("busybox"));
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assert_eq!(m.subcommand().unwrap().1.subcommand_name(), Some("true"));
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let m = cmd.clone().try_get_matches_from(["true"]).unwrap();
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assert_eq!(m.subcommand_name(), Some("true"));
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let m = cmd.clone().try_get_matches_from(["a.out"]);
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assert!(m.is_err());
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assert_eq!(m.unwrap_err().kind(), ErrorKind::InvalidSubcommand);
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}
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#[test]
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fn hostname_like_multicall() {
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let mut cmd = Command::new("hostname")
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.multicall(true)
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.subcommand(Command::new("hostname"))
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.subcommand(Command::new("dnsdomainname"));
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let m = cmd.clone().try_get_matches_from(["hostname"]).unwrap();
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assert_eq!(m.subcommand_name(), Some("hostname"));
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let m = cmd.clone().try_get_matches_from(["dnsdomainname"]).unwrap();
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assert_eq!(m.subcommand_name(), Some("dnsdomainname"));
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let m = cmd.clone().try_get_matches_from(["a.out"]);
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assert!(m.is_err());
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assert_eq!(m.unwrap_err().kind(), ErrorKind::InvalidSubcommand);
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let m = cmd.try_get_matches_from_mut(["hostname", "hostname"]);
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assert!(m.is_err());
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assert_eq!(m.unwrap_err().kind(), ErrorKind::UnknownArgument);
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let m = cmd.try_get_matches_from(["hostname", "dnsdomainname"]);
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assert!(m.is_err());
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assert_eq!(m.unwrap_err().kind(), ErrorKind::UnknownArgument);
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}
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#[test]
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#[cfg(feature = "error-context")]
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fn bad_multicall_command_error() {
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let cmd = Command::new("repl")
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.version("1.0.0")
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.propagate_version(true)
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.multicall(true)
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.subcommand(Command::new("foo"))
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.subcommand(Command::new("bar"));
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let err = cmd.clone().try_get_matches_from(["world"]).unwrap_err();
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assert_eq!(err.kind(), ErrorKind::InvalidSubcommand);
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static HELLO_EXPECTED: &str = "\
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error: unrecognized subcommand 'world'
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Usage: <COMMAND>
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|
|
|
For more information, try 'help'.
|
|
";
|
|
utils::assert_eq(HELLO_EXPECTED, err.to_string());
|
|
|
|
#[cfg(feature = "suggestions")]
|
|
{
|
|
let err = cmd.clone().try_get_matches_from(["baz"]).unwrap_err();
|
|
assert_eq!(err.kind(), ErrorKind::InvalidSubcommand);
|
|
static BAZ_EXPECTED: &str = "\
|
|
error: unrecognized subcommand 'baz'
|
|
|
|
note: subcommand 'bar' exists
|
|
note: to pass 'baz' as a value, use ' -- baz'
|
|
|
|
Usage: <COMMAND>
|
|
|
|
For more information, try 'help'.
|
|
";
|
|
utils::assert_eq(BAZ_EXPECTED, err.to_string());
|
|
}
|
|
|
|
// Verify whatever we did to get the above to work didn't disable `--help` and `--version`.
|
|
|
|
let err = cmd
|
|
.clone()
|
|
.try_get_matches_from(["foo", "--help"])
|
|
.unwrap_err();
|
|
assert_eq!(err.kind(), ErrorKind::DisplayHelp);
|
|
|
|
let err = cmd
|
|
.clone()
|
|
.try_get_matches_from(["foo", "--version"])
|
|
.unwrap_err();
|
|
assert_eq!(err.kind(), ErrorKind::DisplayVersion);
|
|
}
|
|
|
|
#[test]
|
|
#[should_panic = "Command repl: Arguments like oh-no cannot be set on a multicall command"]
|
|
fn cant_have_args_with_multicall() {
|
|
let mut cmd = Command::new("repl")
|
|
.version("1.0.0")
|
|
.propagate_version(true)
|
|
.multicall(true)
|
|
.subcommand(Command::new("foo"))
|
|
.subcommand(Command::new("bar"))
|
|
.arg(Arg::new("oh-no"));
|
|
cmd.build();
|
|
}
|
|
|
|
#[test]
|
|
fn multicall_help_flag() {
|
|
static EXPECTED: &str = "\
|
|
Usage: foo bar [value]
|
|
|
|
Arguments:
|
|
[value]
|
|
|
|
Options:
|
|
-h, --help Print help
|
|
-V, --version Print version
|
|
";
|
|
let cmd = Command::new("repl")
|
|
.version("1.0.0")
|
|
.propagate_version(true)
|
|
.multicall(true)
|
|
.subcommand(Command::new("foo").subcommand(Command::new("bar").arg(Arg::new("value"))));
|
|
utils::assert_output(cmd, "foo bar --help", EXPECTED, false);
|
|
}
|
|
|
|
#[test]
|
|
fn multicall_help_subcommand() {
|
|
static EXPECTED: &str = "\
|
|
Usage: foo bar [value]
|
|
|
|
Arguments:
|
|
[value]
|
|
|
|
Options:
|
|
-h, --help Print help
|
|
-V, --version Print version
|
|
";
|
|
let cmd = Command::new("repl")
|
|
.version("1.0.0")
|
|
.propagate_version(true)
|
|
.multicall(true)
|
|
.subcommand(Command::new("foo").subcommand(Command::new("bar").arg(Arg::new("value"))));
|
|
utils::assert_output(cmd, "help foo bar", EXPECTED, false);
|
|
}
|
|
|
|
#[test]
|
|
fn multicall_render_help() {
|
|
static EXPECTED: &str = "\
|
|
Usage: foo bar [value]
|
|
|
|
Arguments:
|
|
[value]
|
|
|
|
Options:
|
|
-h, --help Print help
|
|
-V, --version Print version
|
|
";
|
|
let mut cmd = Command::new("repl")
|
|
.version("1.0.0")
|
|
.propagate_version(true)
|
|
.multicall(true)
|
|
.subcommand(Command::new("foo").subcommand(Command::new("bar").arg(Arg::new("value"))));
|
|
cmd.build();
|
|
let subcmd = cmd.find_subcommand_mut("foo").unwrap();
|
|
let subcmd = subcmd.find_subcommand_mut("bar").unwrap();
|
|
|
|
let help = subcmd.render_help().to_string();
|
|
utils::assert_eq(EXPECTED, help);
|
|
}
|
|
|
|
#[test]
|
|
#[should_panic = "Command test: command name `repeat` is duplicated"]
|
|
fn duplicate_subcommand() {
|
|
Command::new("test")
|
|
.subcommand(Command::new("repeat"))
|
|
.subcommand(Command::new("repeat"))
|
|
.build()
|
|
}
|
|
|
|
#[test]
|
|
#[should_panic = "Command test: command `unique` alias `repeat` is duplicated"]
|
|
fn duplicate_subcommand_alias() {
|
|
Command::new("test")
|
|
.subcommand(Command::new("repeat"))
|
|
.subcommand(Command::new("unique").alias("repeat"))
|
|
.build()
|
|
}
|