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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
commit | 36d22d82aa202bb199967e9512281e9a53db42c9 (patch) | |
tree | 105e8c98ddea1c1e4784a60a5a6410fa416be2de /third_party/rust/hashlink/tests/linked_hash_set.rs | |
parent | Initial commit. (diff) | |
download | firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip |
Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'third_party/rust/hashlink/tests/linked_hash_set.rs')
-rw-r--r-- | third_party/rust/hashlink/tests/linked_hash_set.rs | 543 |
1 files changed, 543 insertions, 0 deletions
diff --git a/third_party/rust/hashlink/tests/linked_hash_set.rs b/third_party/rust/hashlink/tests/linked_hash_set.rs new file mode 100644 index 0000000000..7a9e33f90d --- /dev/null +++ b/third_party/rust/hashlink/tests/linked_hash_set.rs @@ -0,0 +1,543 @@ +use hashbrown::hash_map::DefaultHashBuilder; +use hashlink::linked_hash_set::{self, LinkedHashSet}; + +#[allow(dead_code)] +fn assert_covariance() { + fn set<'new>(v: LinkedHashSet<&'static str>) -> LinkedHashSet<&'new str> { + v + } + + fn iter<'a, 'new>( + v: linked_hash_set::Iter<'a, &'static str>, + ) -> linked_hash_set::Iter<'a, &'new str> { + v + } + + fn into_iter<'new>( + v: linked_hash_set::IntoIter<&'static str>, + ) -> linked_hash_set::IntoIter<&'new str> { + v + } + + fn difference<'a, 'new>( + v: linked_hash_set::Difference<'a, &'static str, DefaultHashBuilder>, + ) -> linked_hash_set::Difference<'a, &'new str, DefaultHashBuilder> { + v + } + + fn symmetric_difference<'a, 'new>( + v: linked_hash_set::SymmetricDifference<'a, &'static str, DefaultHashBuilder>, + ) -> linked_hash_set::SymmetricDifference<'a, &'new str, DefaultHashBuilder> { + v + } + + fn intersection<'a, 'new>( + v: linked_hash_set::Intersection<'a, &'static str, DefaultHashBuilder>, + ) -> linked_hash_set::Intersection<'a, &'new str, DefaultHashBuilder> { + v + } + + fn union<'a, 'new>( + v: linked_hash_set::Union<'a, &'static str, DefaultHashBuilder>, + ) -> linked_hash_set::Union<'a, &'new str, DefaultHashBuilder> { + v + } + + fn drain<'new>( + d: linked_hash_set::Drain<'static, &'static str>, + ) -> linked_hash_set::Drain<'new, &'new str> { + d + } +} + +#[test] +fn test_zero_capacities() { + type HS = LinkedHashSet<i32>; + + let s = HS::new(); + assert_eq!(s.capacity(), 0); + + let s = HS::default(); + assert_eq!(s.capacity(), 0); + + let s = HS::with_hasher(DefaultHashBuilder::default()); + assert_eq!(s.capacity(), 0); + + let s = HS::with_capacity(0); + assert_eq!(s.capacity(), 0); + + let s = HS::with_capacity_and_hasher(0, DefaultHashBuilder::default()); + assert_eq!(s.capacity(), 0); + + let mut s = HS::new(); + s.insert(1); + s.insert(2); + s.remove(&1); + s.remove(&2); + s.shrink_to_fit(); + assert_eq!(s.capacity(), 0); + + let mut s = HS::new(); + s.reserve(0); + assert_eq!(s.capacity(), 0); +} + +#[test] +fn test_disjoint() { + let mut xs = LinkedHashSet::new(); + let mut ys = LinkedHashSet::new(); + assert!(xs.is_disjoint(&ys)); + assert!(ys.is_disjoint(&xs)); + assert!(xs.insert(5)); + assert!(ys.insert(11)); + assert!(xs.is_disjoint(&ys)); + assert!(ys.is_disjoint(&xs)); + assert!(xs.insert(7)); + assert!(xs.insert(19)); + assert!(xs.insert(4)); + assert!(ys.insert(2)); + assert!(ys.insert(-11)); + assert!(xs.is_disjoint(&ys)); + assert!(ys.is_disjoint(&xs)); + assert!(ys.insert(7)); + assert!(!xs.is_disjoint(&ys)); + assert!(!ys.is_disjoint(&xs)); +} + +#[test] +fn test_subset_and_superset() { + let mut a = LinkedHashSet::new(); + assert!(a.insert(0)); + assert!(a.insert(5)); + assert!(a.insert(11)); + assert!(a.insert(7)); + + let mut b = LinkedHashSet::new(); + assert!(b.insert(0)); + assert!(b.insert(7)); + assert!(b.insert(19)); + assert!(b.insert(250)); + assert!(b.insert(11)); + assert!(b.insert(200)); + + assert!(!a.is_subset(&b)); + assert!(!a.is_superset(&b)); + assert!(!b.is_subset(&a)); + assert!(!b.is_superset(&a)); + + assert!(b.insert(5)); + + assert!(a.is_subset(&b)); + assert!(!a.is_superset(&b)); + assert!(!b.is_subset(&a)); + assert!(b.is_superset(&a)); +} + +#[test] +fn test_iterate() { + let mut a = LinkedHashSet::new(); + for i in 0..32 { + assert!(a.insert(i)); + } + let mut observed: u32 = 0; + for k in &a { + observed |= 1 << *k; + } + assert_eq!(observed, 0xFFFF_FFFF); +} + +#[test] +fn test_intersection() { + let mut a = LinkedHashSet::new(); + let mut b = LinkedHashSet::new(); + + assert!(a.insert(11)); + assert!(a.insert(1)); + assert!(a.insert(3)); + assert!(a.insert(77)); + assert!(a.insert(103)); + assert!(a.insert(5)); + assert!(a.insert(-5)); + + assert!(b.insert(2)); + assert!(b.insert(11)); + assert!(b.insert(77)); + assert!(b.insert(-9)); + assert!(b.insert(-42)); + assert!(b.insert(5)); + assert!(b.insert(3)); + + let mut i = 0; + let expected = [3, 5, 11, 77]; + for x in a.intersection(&b) { + assert!(expected.contains(x)); + i += 1 + } + assert_eq!(i, expected.len()); +} + +#[test] +fn test_difference() { + let mut a = LinkedHashSet::new(); + let mut b = LinkedHashSet::new(); + + assert!(a.insert(1)); + assert!(a.insert(3)); + assert!(a.insert(5)); + assert!(a.insert(9)); + assert!(a.insert(11)); + + assert!(b.insert(3)); + assert!(b.insert(9)); + + let mut i = 0; + let expected = [1, 5, 11]; + for x in a.difference(&b) { + assert!(expected.contains(x)); + i += 1 + } + assert_eq!(i, expected.len()); +} + +#[test] +fn test_symmetric_difference() { + let mut a = LinkedHashSet::new(); + let mut b = LinkedHashSet::new(); + + assert!(a.insert(1)); + assert!(a.insert(3)); + assert!(a.insert(5)); + assert!(a.insert(9)); + assert!(a.insert(11)); + + assert!(b.insert(-2)); + assert!(b.insert(3)); + assert!(b.insert(9)); + assert!(b.insert(14)); + assert!(b.insert(22)); + + let mut i = 0; + let expected = [-2, 1, 5, 11, 14, 22]; + for x in a.symmetric_difference(&b) { + assert!(expected.contains(x)); + i += 1 + } + assert_eq!(i, expected.len()); +} + +#[test] +fn test_union() { + let mut a = LinkedHashSet::new(); + let mut b = LinkedHashSet::new(); + + assert!(a.insert(1)); + assert!(a.insert(3)); + assert!(a.insert(5)); + assert!(a.insert(9)); + assert!(a.insert(11)); + assert!(a.insert(16)); + assert!(a.insert(19)); + assert!(a.insert(24)); + + assert!(b.insert(-2)); + assert!(b.insert(1)); + assert!(b.insert(5)); + assert!(b.insert(9)); + assert!(b.insert(13)); + assert!(b.insert(19)); + + let mut i = 0; + let expected = [-2, 1, 3, 5, 9, 11, 13, 16, 19, 24]; + for x in a.union(&b) { + assert!(expected.contains(x)); + i += 1 + } + assert_eq!(i, expected.len()); +} + +#[test] +fn test_from_iter() { + let xs = [1, 2, 3, 4, 5, 6, 7, 8, 9]; + + let set: LinkedHashSet<_> = xs.iter().cloned().collect(); + + for x in &xs { + assert!(set.contains(x)); + } +} + +#[test] +fn test_move_iter() { + let hs = { + let mut hs = LinkedHashSet::new(); + + hs.insert('a'); + hs.insert('b'); + + hs + }; + + let v = hs.into_iter().collect::<Vec<char>>(); + assert!(v == ['a', 'b'] || v == ['b', 'a']); +} + +#[test] +fn test_eq() { + let mut s1 = LinkedHashSet::new(); + + s1.insert(1); + s1.insert(2); + s1.insert(3); + + let mut s2 = LinkedHashSet::new(); + + s2.insert(1); + s2.insert(2); + + assert!(s1 != s2); + + s2.insert(3); + + assert_eq!(s1, s2); +} + +#[test] +fn test_show() { + let mut set = LinkedHashSet::new(); + let empty = LinkedHashSet::<i32>::new(); + + set.insert(1); + set.insert(2); + + let set_str = format!("{:?}", set); + + assert!(set_str == "{1, 2}" || set_str == "{2, 1}"); + assert_eq!(format!("{:?}", empty), "{}"); +} + +#[test] +fn test_trivial_drain() { + let mut s = LinkedHashSet::<i32>::new(); + for _ in s.drain() {} + assert!(s.is_empty()); + drop(s); + + let mut s = LinkedHashSet::<i32>::new(); + drop(s.drain()); + assert!(s.is_empty()); +} + +#[test] +fn test_drain() { + let mut s: LinkedHashSet<_> = (1..100).collect(); + + for _ in 0..20 { + assert_eq!(s.len(), 99); + + { + let mut last_i = 0; + let mut d = s.drain(); + for (i, x) in d.by_ref().take(50).enumerate() { + last_i = i; + assert!(x != 0); + } + assert_eq!(last_i, 49); + } + + for _ in &s { + panic!("s should be empty!"); + } + + s.extend(1..100); + } +} + +#[test] +fn test_replace() { + use core::hash; + + #[derive(Debug)] + struct Foo(&'static str, i32); + + impl PartialEq for Foo { + fn eq(&self, other: &Self) -> bool { + self.0 == other.0 + } + } + + impl Eq for Foo {} + + impl hash::Hash for Foo { + fn hash<H: hash::Hasher>(&self, h: &mut H) { + self.0.hash(h); + } + } + + let mut s = LinkedHashSet::new(); + assert_eq!(s.replace(Foo("a", 1)), None); + assert_eq!(s.len(), 1); + assert_eq!(s.replace(Foo("a", 2)), Some(Foo("a", 1))); + assert_eq!(s.len(), 1); + + let mut it = s.iter(); + assert_eq!(it.next(), Some(&Foo("a", 2))); + assert_eq!(it.next(), None); +} + +#[test] +fn test_extend_ref() { + let mut a = LinkedHashSet::new(); + a.insert(1); + + a.extend(&[2, 3, 4]); + + assert_eq!(a.len(), 4); + assert!(a.contains(&1)); + assert!(a.contains(&2)); + assert!(a.contains(&3)); + assert!(a.contains(&4)); + + let mut b = LinkedHashSet::new(); + b.insert(5); + b.insert(6); + + a.extend(&b); + + assert_eq!(a.len(), 6); + assert!(a.contains(&1)); + assert!(a.contains(&2)); + assert!(a.contains(&3)); + assert!(a.contains(&4)); + assert!(a.contains(&5)); + assert!(a.contains(&6)); +} + +#[test] +fn test_retain() { + let xs = [1, 2, 3, 4, 5, 6]; + let mut set: LinkedHashSet<i32> = xs.iter().cloned().collect(); + set.retain(|&k| k % 2 == 0); + assert_eq!(set.len(), 3); + assert!(set.contains(&2)); + assert!(set.contains(&4)); + assert!(set.contains(&6)); +} + +#[test] +fn test_retain_with_order() { + let xs = [1, 2, 3, 4, 5, 6]; + let mut set: LinkedHashSet<i32> = xs.iter().cloned().collect(); + let mut vec = Vec::new(); + set.retain_with_order(|&k| { + if k % 2 == 0 { + true + } else { + vec.push(k); + false + } + }); + assert_eq!(vec![1, 3, 5], vec); +} + +#[test] +fn insert_order() { + let mut set = LinkedHashSet::new(); + set.insert(1); + set.insert(2); + set.insert(3); + set.insert(4); + assert_eq!( + set.clone().into_iter().collect::<Vec<_>>(), + vec![1, 2, 3, 4] + ); + assert_eq!(set.into_iter().collect::<Vec<_>>(), vec![1, 2, 3, 4]); +} + +#[test] +fn front_back() { + let mut set = LinkedHashSet::new(); + set.insert(1); + set.insert(2); + set.insert(3); + set.insert(4); + assert_eq!(set.front(), Some(&1)); + assert_eq!(set.back(), Some(&4)); + assert_eq!(set.pop_back(), Some(4)); + assert_eq!(set.back(), Some(&3)); + assert_eq!(set.pop_front(), Some(1)); + assert_eq!(set.front(), Some(&2)); +} + +#[test] +fn double_ended_iter() { + let mut set = LinkedHashSet::new(); + set.insert(1); + set.insert(2); + set.insert(3); + set.insert(4); + + let mut iter = set.iter(); + assert_eq!(iter.next(), Some(&1)); + assert_eq!(iter.next(), Some(&2)); + assert_eq!(iter.next_back(), Some(&4)); + assert_eq!(iter.next_back(), Some(&3)); + assert_eq!(iter.next_back(), None); + assert_eq!(iter.next(), None); + assert_eq!(iter.next_back(), None); + drop(iter); + + let mut iter = set.drain(); + assert_eq!(iter.next(), Some(1)); + assert_eq!(iter.next(), Some(2)); + assert_eq!(iter.next_back(), Some(4)); + assert_eq!(iter.next_back(), Some(3)); + assert_eq!(iter.next_back(), None); + assert_eq!(iter.next(), None); + assert_eq!(iter.next_back(), None); + drop(iter); + + set.insert(1); + set.insert(2); + set.insert(3); + set.insert(4); + + let mut iter = set.into_iter(); + assert_eq!(iter.next(), Some(1)); + assert_eq!(iter.next(), Some(2)); + assert_eq!(iter.next_back(), Some(4)); + assert_eq!(iter.next_back(), Some(3)); + assert_eq!(iter.next_back(), None); + assert_eq!(iter.next(), None); + assert_eq!(iter.next_back(), None); +} + +#[test] +fn to_back_front_order() { + let mut set = LinkedHashSet::new(); + set.insert(1); + set.insert(2); + set.insert(3); + set.insert(4); + + assert_eq!(set.back().copied(), Some(4)); + assert_eq!(set.front().copied(), Some(1)); + set.to_back(&2); + assert_eq!(set.back().copied(), Some(2)); + set.to_front(&3); + assert_eq!(set.front().copied(), Some(3)); +} + +#[test] +fn test_order_equality() { + let xs = [1, 2, 3, 4, 5, 6]; + let mut set1: LinkedHashSet<i32> = xs.iter().copied().collect(); + let mut set2: LinkedHashSet<i32> = xs.iter().copied().collect(); + + assert_eq!(set1, set2); + + set1.to_front(&4); + assert_ne!(set1, set2); + + set2.to_front(&4); + assert_eq!(set1, set2); +} |