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Diffstat (limited to '')
-rw-r--r-- | compiler/rustc_data_structures/src/vec_map/tests.rs | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/compiler/rustc_data_structures/src/vec_map/tests.rs b/compiler/rustc_data_structures/src/vec_map/tests.rs new file mode 100644 index 000000000..458b60077 --- /dev/null +++ b/compiler/rustc_data_structures/src/vec_map/tests.rs @@ -0,0 +1,48 @@ +use super::*; + +impl<K, V> VecMap<K, V> { + fn into_vec(self) -> Vec<(K, V)> { + self.0.into() + } +} + +#[test] +fn test_from_iterator() { + assert_eq!( + std::iter::empty().collect::<VecMap<i32, bool>>().into_vec(), + Vec::<(i32, bool)>::new() + ); + assert_eq!(std::iter::once((42, true)).collect::<VecMap<_, _>>().into_vec(), vec![(42, true)]); + assert_eq!( + [(1, true), (2, false)].into_iter().collect::<VecMap<_, _>>().into_vec(), + vec![(1, true), (2, false)] + ); +} + +#[test] +fn test_into_iterator_owned() { + assert_eq!(VecMap::new().into_iter().collect::<Vec<(i32, bool)>>(), Vec::<(i32, bool)>::new()); + assert_eq!(VecMap::from(vec![(1, true)]).into_iter().collect::<Vec<_>>(), vec![(1, true)]); + assert_eq!( + VecMap::from(vec![(1, true), (2, false)]).into_iter().collect::<Vec<_>>(), + vec![(1, true), (2, false)] + ); +} + +#[test] +fn test_insert() { + let mut v = VecMap::new(); + assert_eq!(v.insert(1, true), None); + assert_eq!(v.insert(2, false), None); + assert_eq!(v.clone().into_vec(), vec![(1, true), (2, false)]); + assert_eq!(v.insert(1, false), Some(true)); + assert_eq!(v.into_vec(), vec![(1, false), (2, false)]); +} + +#[test] +fn test_get() { + let v = [(1, true), (2, false)].into_iter().collect::<VecMap<_, _>>(); + assert_eq!(v.get(&1), Some(&true)); + assert_eq!(v.get(&2), Some(&false)); + assert_eq!(v.get(&3), None); +} |