33 lines
917 B
Rust
33 lines
917 B
Rust
use rand::{distributions::Alphanumeric, thread_rng, Rng};
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/// Generate random string based on [thread_rng] and [Alphanumeric].
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pub fn gen_string(length: u16) -> String {
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thread_rng()
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.sample_iter(Alphanumeric)
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.take(length.into())
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.map(char::from)
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.collect()
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}
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#[cfg_attr(feature = "napi", crate::export(js_name = "secureRndstr"))]
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pub fn native_random_str(length: Option<u16>) -> String {
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gen_string(length.unwrap_or(32))
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}
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#[cfg(test)]
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mod unit_test {
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use pretty_assertions::{assert_eq, assert_ne};
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use std::thread;
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use super::gen_string;
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#[test]
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fn can_generate_unique_strings() {
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assert_eq!(gen_string(16).len(), 16);
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assert_ne!(gen_string(16), gen_string(16));
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let s1 = thread::spawn(|| gen_string(16));
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let s2 = thread::spawn(|| gen_string(16));
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assert_ne!(s1.join().unwrap(), s2.join().unwrap());
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}
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}
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