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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:19:03 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:19:03 +0000 |
commit | 64d98f8ee037282c35007b64c2649055c56af1db (patch) | |
tree | 5492bcf97fce41ee1c0b1cc2add283f3e66cdab0 /vendor/hashbrown/tests/equivalent_trait.rs | |
parent | Adding debian version 1.67.1+dfsg1-1. (diff) | |
download | rustc-64d98f8ee037282c35007b64c2649055c56af1db.tar.xz rustc-64d98f8ee037282c35007b64c2649055c56af1db.zip |
Merging upstream version 1.68.2+dfsg1.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'vendor/hashbrown/tests/equivalent_trait.rs')
-rw-r--r-- | vendor/hashbrown/tests/equivalent_trait.rs | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/vendor/hashbrown/tests/equivalent_trait.rs b/vendor/hashbrown/tests/equivalent_trait.rs new file mode 100644 index 000000000..713dddd53 --- /dev/null +++ b/vendor/hashbrown/tests/equivalent_trait.rs @@ -0,0 +1,53 @@ +use hashbrown::Equivalent; +use hashbrown::HashMap; + +use std::hash::Hash; + +#[derive(Debug, Hash)] +pub struct Pair<A, B>(pub A, pub B); + +impl<A, B, C, D> PartialEq<(A, B)> for Pair<C, D> +where + C: PartialEq<A>, + D: PartialEq<B>, +{ + fn eq(&self, rhs: &(A, B)) -> bool { + self.0 == rhs.0 && self.1 == rhs.1 + } +} + +impl<A, B, X> Equivalent<X> for Pair<A, B> +where + Pair<A, B>: PartialEq<X>, + A: Hash + Eq, + B: Hash + Eq, +{ + fn equivalent(&self, other: &X) -> bool { + *self == *other + } +} + +#[test] +fn test_lookup() { + let s = String::from; + let mut map = HashMap::new(); + map.insert((s("a"), s("b")), 1); + map.insert((s("a"), s("x")), 2); + + assert!(map.contains_key(&Pair("a", "b"))); + assert!(!map.contains_key(&Pair("b", "a"))); +} + +#[test] +fn test_string_str() { + let s = String::from; + let mut map = HashMap::new(); + map.insert(s("a"), 1); + map.insert(s("b"), 2); + map.insert(s("x"), 3); + map.insert(s("y"), 4); + + assert!(map.contains_key("a")); + assert!(!map.contains_key("z")); + assert_eq!(map.remove("b"), Some(2)); +} |