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clap/tests/builder/empty_values.rs
Ed Page 2d83a7b12e feat(error): Break out error-context feature flag
This is a cheap pass at creating this to allow cutting out the cost of
rich error information / programmatic error information.

This cuts about 20 KiB off of the binary.

There is more we could cut out, like collecting of used arguments for
the usage, but I want to keep the conditionals simple.
2022-09-19 10:23:55 -05:00

129 lines
4.1 KiB
Rust

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::<String>("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::<String>("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::<String>("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=<config>'.
Usage: config [OPTIONS]
For more information try '--help'
";
utils::assert_output(cmd, "config --config", NO_EUQALS_ERROR, true);
}