use clap::{error::ErrorKind, Arg, ArgAction, Command}; #[cfg(feature = "error-context")] use super::utils; #[test] fn empty_values() { let m = Command::new("config") .arg(Arg::new("config").long("config").action(ArgAction::Set)) .try_get_matches_from(["config", "--config", ""]) .unwrap(); assert_eq!(m.get_one::("config").map(|v| v.as_str()), Some("")); } #[test] fn empty_values_with_equals() { let m = Command::new("config") .arg(Arg::new("config").long("config").action(ArgAction::Set)) .try_get_matches_from(["config", "--config="]) .unwrap(); assert_eq!(m.get_one::("config").map(|v| v.as_str()), Some("")); let m = Command::new("config") .arg(Arg::new("config").short('c').action(ArgAction::Set)) .try_get_matches_from(["config", "-c="]) .unwrap(); assert_eq!(m.get_one::("config").map(|v| v.as_str()), Some("")) } #[test] fn no_empty_values() { let m = Command::new("config") .arg( Arg::new("config") .long("config") .action(ArgAction::Set) .value_parser(clap::builder::NonEmptyStringValueParser::new()), ) .try_get_matches_from(["config", "--config", ""]); assert!(m.is_err()); assert_eq!(m.unwrap_err().kind(), ErrorKind::InvalidValue); let m = Command::new("config") .arg( Arg::new("config") .short('c') .action(ArgAction::Set) .value_parser(clap::builder::NonEmptyStringValueParser::new()), ) .try_get_matches_from(["config", "-c", ""]); assert!(m.is_err()); assert_eq!(m.unwrap_err().kind(), ErrorKind::InvalidValue) } #[test] fn no_empty_values_with_equals() { let m = Command::new("config") .arg( Arg::new("config") .long("config") .action(ArgAction::Set) .value_parser(clap::builder::NonEmptyStringValueParser::new()), ) .try_get_matches_from(["config", "--config="]); assert!(m.is_err()); assert_eq!(m.unwrap_err().kind(), ErrorKind::InvalidValue); let m = Command::new("config") .arg( Arg::new("config") .short('c') .action(ArgAction::Set) .value_parser(clap::builder::NonEmptyStringValueParser::new()), ) .try_get_matches_from(["config", "-c="]); assert!(m.is_err()); assert_eq!(m.unwrap_err().kind(), ErrorKind::InvalidValue); } #[test] fn no_empty_values_without_equals() { let m = Command::new("config") .arg( Arg::new("config") .long("config") .action(ArgAction::Set) .value_parser(clap::builder::NonEmptyStringValueParser::new()), ) .try_get_matches_from(["config", "--config"]); assert!(m.is_err()); assert_eq!(m.unwrap_err().kind(), ErrorKind::InvalidValue); let m = Command::new("config") .arg( Arg::new("config") .short('c') .action(ArgAction::Set) .value_parser(clap::builder::NonEmptyStringValueParser::new()), ) .try_get_matches_from(["config", "-c"]); assert!(m.is_err()); assert_eq!(m.unwrap_err().kind(), ErrorKind::InvalidValue) } #[test] #[cfg(feature = "error-context")] fn no_empty_values_without_equals_but_requires_equals() { let cmd = Command::new("config").arg( Arg::new("config") .long("config") .action(ArgAction::Set) .value_parser(clap::builder::NonEmptyStringValueParser::new()) .require_equals(true), ); let m = cmd.clone().try_get_matches_from(["config", "--config"]); // Should error on no equals rather than empty value. assert!(m.is_err()); assert_eq!(m.unwrap_err().kind(), ErrorKind::NoEquals); static NO_EUQALS_ERROR: &str = "error: Equal sign is needed when assigning values to '--config=' Usage: config [OPTIONS] For more information try '--help' "; utils::assert_output(cmd, "config --config", NO_EUQALS_ERROR, true); }