63 lines
1.3 KiB
Rust
63 lines
1.3 KiB
Rust
use super::Error;
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use nanoid::nanoid;
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use nanoid_dictionary::NOLOOKALIKES;
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use std::fmt::{Display, Formatter};
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use std::str::FromStr;
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const LENGTH: usize = 15;
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#[derive(Debug, Clone, PartialEq)]
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pub struct UserID(pub String);
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impl Display for UserID {
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fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
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write!(f, "{}", self.0)
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}
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}
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impl Default for UserID {
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fn default() -> Self {
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Self(nanoid!(LENGTH, NOLOOKALIKES))
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}
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}
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impl FromStr for UserID {
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type Err = Error;
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fn from_str(s: &str) -> Result<Self, Self::Err> {
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if s.len() == LENGTH && s.chars().all(|c| NOLOOKALIKES.contains(&c)) {
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Ok(Self(s.to_string()))
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} else {
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Err(Error::Invalid("User"))
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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::{UserID, LENGTH};
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use std::str::FromStr;
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#[test]
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fn invalid_length() {
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assert!(UserID::from_str("test").is_err());
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}
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#[test]
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fn invalid_characters() {
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let value = "11lI0Oouv5Ss2ZZ";
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assert_eq!(value.len(), LENGTH);
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assert!(UserID::from_str(value).is_err());
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}
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#[test]
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fn valid() {
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let value = "nqWxagcdTGGXUgn";
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let id = UserID::from_str(value);
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assert!(id.is_ok());
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let id = id.unwrap();
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assert_eq!(id.0, value);
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}
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}
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