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#[derive(Copy, Clone, Debug, Eq, Ord, PartialEq, PartialOrd)]
#[non_exhaustive]
pub enum Version {
Http0_9,
Http1_0,
Http1_1,
Http2_0,
Http3_0,
}
impl std::fmt::Display for Version {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
f.write_str(match self {
Version::Http0_9 => "HTTP/0.9",
Version::Http1_0 => "HTTP/1.0",
Version::Http1_1 => "HTTP/1.1",
Version::Http2_0 => "HTTP/2",
Version::Http3_0 => "HTTP/3",
})
}
}
#[cfg(test)]
mod test {
use super::*;
#[test]
fn to_string() {
let output = format!(
"{} {} {} {} {}",
Version::Http0_9,
Version::Http1_0,
Version::Http1_1,
Version::Http2_0,
Version::Http3_0
);
assert_eq!("HTTP/0.9 HTTP/1.0 HTTP/1.1 HTTP/2 HTTP/3", output);
}
#[test]
fn ord() {
use Version::{Http0_9, Http1_0, Http1_1, Http2_0, Http3_0};
assert!(Http3_0 > Http2_0);
assert!(Http2_0 > Http1_1);
assert!(Http1_1 > Http1_0);
assert!(Http1_0 > Http0_9);
}
}