57 lines
1.3 KiB
Rust
57 lines
1.3 KiB
Rust
|
use crate::core::EString;
|
||
|
|
|
||
|
|
impl TryFrom<EString> for bool {
|
||
|
|
type Error = ();
|
||
|
|
|
||
|
|
#[inline]
|
||
|
|
fn try_from(s: EString) -> Result<Self, Self::Error> {
|
||
|
|
match s.to_lowercase().as_str() {
|
||
|
|
"true" | "t" | "yes" | "y" | "on" | "1" => Ok(true),
|
||
|
|
"false" | "f" | "no" | "n" | "off" | "0" | "" => Ok(false),
|
||
|
|
_ => Err(()),
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
#[cfg(test)]
|
||
|
|
mod tests {
|
||
|
|
use super::*;
|
||
|
|
use crate::ParseError;
|
||
|
|
|
||
|
|
#[test]
|
||
|
|
fn should_parse_bool_variable() {
|
||
|
|
let test_cases = [
|
||
|
|
("1", true),
|
||
|
|
("0", false),
|
||
|
|
("y", true),
|
||
|
|
("f", false),
|
||
|
|
("yes", true),
|
||
|
|
("true", true),
|
||
|
|
("false", false),
|
||
|
|
("t", true),
|
||
|
|
("f", false),
|
||
|
|
("on", true),
|
||
|
|
("off", false),
|
||
|
|
];
|
||
|
|
|
||
|
|
for (val, expected) in test_cases {
|
||
|
|
let estr = EString::from(val);
|
||
|
|
match estr.parse::<bool>() {
|
||
|
|
Ok(res) => assert_eq!(res, expected),
|
||
|
|
_ => unreachable!(),
|
||
|
|
};
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
#[test]
|
||
|
|
fn should_throw_parse_error() {
|
||
|
|
let estr = EString::from("something");
|
||
|
|
match estr.parse::<bool>() {
|
||
|
|
Err(ParseError(orig)) => {
|
||
|
|
assert_eq!(orig, String::from("something"));
|
||
|
|
}
|
||
|
|
_ => unreachable!(),
|
||
|
|
};
|
||
|
|
}
|
||
|
|
}
|