35 lines
962 B
Rust
35 lines
962 B
Rust
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#![cfg(not(miri))] // FIXME: takes too long
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use hashbrown::HashSet;
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use rand::{distributions::Alphanumeric, rngs::SmallRng, Rng, SeedableRng};
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use std::iter;
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#[test]
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fn test_hashset_insert_remove() {
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let mut m: HashSet<Vec<char>> = HashSet::new();
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let seed = u64::from_le_bytes(*b"testseed");
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let rng = &mut SmallRng::seed_from_u64(seed);
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let tx: Vec<Vec<char>> = iter::repeat_with(|| {
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rng.sample_iter(&Alphanumeric)
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.take(32)
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.map(char::from)
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.collect()
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})
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.take(4096)
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.collect();
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// more readable with explicit `true` / `false`
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#[allow(clippy::bool_assert_comparison)]
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for _ in 0..32 {
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for x in &tx {
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assert_eq!(m.contains(x), false);
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assert_eq!(m.insert(x.clone()), true);
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}
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for (i, x) in tx.iter().enumerate() {
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println!("removing {} {:?}", i, x);
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assert_eq!(m.remove(x), true);
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}
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}
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}
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