mirror of
https://github.com/clap-rs/clap
synced 2024-12-14 14:52:33 +00:00
7486a0b4b9
For now, we are focusing only on iterating over the argument ids and not the values. This provides a building block for more obscure use cases like iterating over argument values, in order. We are not providing it out of the box at the moment both to not overly incentize a less common case, because it would abstract away a performance hit, and because we want to let people experiment with this and if a common path emerges we can consider it then if there is enough users. Fixes #1206
106 lines
3.2 KiB
Rust
106 lines
3.2 KiB
Rust
use clap::{arg, value_parser, Command};
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#[cfg(debug_assertions)]
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use clap::{Arg, ArgAction};
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#[test]
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fn ids() {
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let m = Command::new("test")
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.arg(
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arg!(--color <when>)
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.value_parser(["auto", "always", "never"])
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.required(false),
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)
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.arg(
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arg!(--config <path>)
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.value_parser(value_parser!(std::path::PathBuf))
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.required(false),
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)
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.try_get_matches_from(["test", "--config=config.toml", "--color=auto"])
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.unwrap();
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assert_eq!(
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m.ids().map(|id| id.as_str()).collect::<Vec<_>>(),
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["config", "color"]
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);
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assert_eq!(m.ids().len(), 2);
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}
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#[test]
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fn ids_ignore_unused() {
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let m = Command::new("test")
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.arg(
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arg!(--color <when>)
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.value_parser(["auto", "always", "never"])
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.required(false),
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)
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.arg(
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arg!(--config <path>)
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.value_parser(value_parser!(std::path::PathBuf))
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.required(false),
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)
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.try_get_matches_from(["test", "--config=config.toml"])
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.unwrap();
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assert_eq!(
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m.ids().map(|id| id.as_str()).collect::<Vec<_>>(),
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["config"]
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);
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assert_eq!(m.ids().len(), 1);
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}
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#[test]
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fn ids_ignore_overridden() {
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let m = Command::new("test")
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.arg(
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arg!(--color <when>)
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.value_parser(["auto", "always", "never"])
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.required(false),
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)
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.arg(
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arg!(--config <path>)
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.value_parser(value_parser!(std::path::PathBuf))
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.required(false)
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.overrides_with("color"),
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)
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.try_get_matches_from(["test", "--config=config.toml", "--color=auto"])
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.unwrap();
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assert_eq!(m.ids().map(|id| id.as_str()).collect::<Vec<_>>(), ["color"]);
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assert_eq!(m.ids().len(), 1);
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}
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#[test]
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#[cfg(debug_assertions)]
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#[should_panic = "Unknown argument or group id. Make sure you are using the argument id and not the short or long flags"]
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fn arg_matches_if_present_wrong_arg() {
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let m = Command::new("test")
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.arg(Arg::new("flag").short('f').action(ArgAction::SetTrue))
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.try_get_matches_from(&["test", "-f"])
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.unwrap();
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assert!(*m.get_one::<bool>("flag").expect("defaulted by clap"));
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m.contains_id("f");
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}
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#[test]
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#[cfg(debug_assertions)]
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#[should_panic = "Mismatch between definition and access of `o`. Unknown argument or group id. Make sure you are using the argument id and not the short or long flags"]
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fn arg_matches_value_of_wrong_arg() {
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let m = Command::new("test")
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.arg(Arg::new("opt").short('o').action(ArgAction::Set))
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.try_get_matches_from(&["test", "-o", "val"])
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.unwrap();
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assert_eq!(m.get_one::<String>("opt").map(|v| v.as_str()), Some("val"));
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m.get_one::<String>("o").map(|v| v.as_str());
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}
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#[test]
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#[cfg(debug_assertions)]
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#[should_panic = "`seed` is not a name of a subcommand."]
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fn arg_matches_subcommand_matches_wrong_sub() {
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let m = Command::new("test")
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.subcommand(Command::new("speed"))
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.try_get_matches_from(&["test", "speed"])
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.unwrap();
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assert!(m.subcommand_matches("speed").is_some());
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m.subcommand_matches("seed");
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}
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