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Diffstat (limited to '')
-rw-r--r-- | compiler/rustc_data_structures/src/thin_vec/tests.rs | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/compiler/rustc_data_structures/src/thin_vec/tests.rs b/compiler/rustc_data_structures/src/thin_vec/tests.rs new file mode 100644 index 000000000..0221b9912 --- /dev/null +++ b/compiler/rustc_data_structures/src/thin_vec/tests.rs @@ -0,0 +1,42 @@ +use super::*; + +impl<T> ThinVec<T> { + fn into_vec(self) -> Vec<T> { + self.into() + } +} + +#[test] +fn test_from_iterator() { + assert_eq!(std::iter::empty().collect::<ThinVec<String>>().into_vec(), Vec::<String>::new()); + assert_eq!(std::iter::once(42).collect::<ThinVec<_>>().into_vec(), vec![42]); + assert_eq!([1, 2].into_iter().collect::<ThinVec<_>>().into_vec(), vec![1, 2]); + assert_eq!([1, 2, 3].into_iter().collect::<ThinVec<_>>().into_vec(), vec![1, 2, 3]); +} + +#[test] +fn test_into_iterator_owned() { + assert_eq!(ThinVec::new().into_iter().collect::<Vec<String>>(), Vec::<String>::new()); + assert_eq!(ThinVec::from(vec![1]).into_iter().collect::<Vec<_>>(), vec![1]); + assert_eq!(ThinVec::from(vec![1, 2]).into_iter().collect::<Vec<_>>(), vec![1, 2]); + assert_eq!(ThinVec::from(vec![1, 2, 3]).into_iter().collect::<Vec<_>>(), vec![1, 2, 3]); +} + +#[test] +fn test_into_iterator_ref() { + assert_eq!(ThinVec::new().iter().collect::<Vec<&String>>(), Vec::<&String>::new()); + assert_eq!(ThinVec::from(vec![1]).iter().collect::<Vec<_>>(), vec![&1]); + assert_eq!(ThinVec::from(vec![1, 2]).iter().collect::<Vec<_>>(), vec![&1, &2]); + assert_eq!(ThinVec::from(vec![1, 2, 3]).iter().collect::<Vec<_>>(), vec![&1, &2, &3]); +} + +#[test] +fn test_into_iterator_ref_mut() { + assert_eq!(ThinVec::new().iter_mut().collect::<Vec<&mut String>>(), Vec::<&mut String>::new()); + assert_eq!(ThinVec::from(vec![1]).iter_mut().collect::<Vec<_>>(), vec![&mut 1]); + assert_eq!(ThinVec::from(vec![1, 2]).iter_mut().collect::<Vec<_>>(), vec![&mut 1, &mut 2]); + assert_eq!( + ThinVec::from(vec![1, 2, 3]).iter_mut().collect::<Vec<_>>(), + vec![&mut 1, &mut 2, &mut 3], + ); +} |