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add more hash backward compatibility test for bloom (#6425)

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Hawstein 2017-08-31 20:50:06 +08:00 committed by Tomasz Drwięga
parent e04d58f647
commit d31b7d8968
1 changed files with 20 additions and 1 deletions
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21
util/bloom/src/lib.rs
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@ -245,14 +245,33 @@ mod tests {
} }
#[test] #[test]
fn hash_backward_compatibility() { fn hash_backward_compatibility_for_new() {
let ss = vec!["you", "should", "not", "break", "hash", "backward", "compatibility"]; let ss = vec!["you", "should", "not", "break", "hash", "backward", "compatibility"];
let mut bloom = Bloom::new(16, 8); let mut bloom = Bloom::new(16, 8);
for s in ss.iter() { for s in ss.iter() {
bloom.set(&s); bloom.set(&s);
} }
let drained_elems: HashSet<u64> = bloom.drain_journal().entries.into_iter().map(|t| t.1).collect(); let drained_elems: HashSet<u64> = bloom.drain_journal().entries.into_iter().map(|t| t.1).collect();
let expected: HashSet<u64> = [2094615114573771027u64, 244675582389208413u64].iter().cloned().collect(); let expected: HashSet<u64> = [2094615114573771027u64, 244675582389208413u64].iter().cloned().collect();
assert_eq!(drained_elems, expected); assert_eq!(drained_elems, expected);
assert_eq!(bloom.k_num, 12);
}
#[test]
fn hash_backward_compatibility_for_from_parts() {
let stored_state = vec![2094615114573771027u64, 244675582389208413u64];
let k_num = 12;
let bloom = Bloom::from_parts(&stored_state, k_num);
let ss = vec!["you", "should", "not", "break", "hash", "backward", "compatibility"];
let tt = vec!["this", "doesnot", "exist"];
for s in ss.iter() {
assert!(bloom.check(&s));
}
for s in tt.iter() {
assert!(!bloom.check(&s));
}
} }
} }