43 lines
1.0 KiB
Rust
43 lines
1.0 KiB
Rust
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use crate::common::*;
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pub(crate) const AUTO: &str = "auto";
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pub(crate) const ALWAYS: &str = "always";
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pub(crate) const NEVER: &str = "never";
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pub(crate) const VALUES: &[&str] = &[AUTO, ALWAYS, NEVER];
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#[derive(Copy, Clone, Debug, PartialEq)]
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pub(crate) enum UseColor {
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Auto,
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Always,
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Never,
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}
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impl FromStr for UseColor {
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type Err = Infallible;
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fn from_str(text: &str) -> Result<Self, Self::Err> {
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match text.to_lowercase().as_str() {
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AUTO => Ok(Self::Auto),
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ALWAYS => Ok(Self::Always),
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NEVER => Ok(Self::Never),
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_ => unreachable!(),
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}
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}
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}
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#[cfg(test)]
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mod tests {
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use super::*;
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#[test]
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fn from_str() {
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assert_eq!(UseColor::Auto, AUTO.parse().unwrap());
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assert_eq!(UseColor::Always, ALWAYS.parse().unwrap());
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assert_eq!(UseColor::Never, NEVER.parse().unwrap());
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assert_eq!(UseColor::Auto, AUTO.to_uppercase().parse().unwrap());
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assert_eq!(UseColor::Always, ALWAYS.to_uppercase().parse().unwrap());
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assert_eq!(UseColor::Never, NEVER.to_uppercase().parse().unwrap());
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}
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}
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