diff options
Diffstat (limited to 'syn/tests/test_iterators.rs')
-rw-r--r-- | syn/tests/test_iterators.rs | 51 |
1 files changed, 0 insertions, 51 deletions
diff --git a/syn/tests/test_iterators.rs b/syn/tests/test_iterators.rs deleted file mode 100644 index f107297..0000000 --- a/syn/tests/test_iterators.rs +++ /dev/null @@ -1,51 +0,0 @@ -use syn::punctuated::{Pair, Punctuated}; -use syn::Token; - -mod features; - -#[macro_use] -mod macros; - -macro_rules! check_exact_size_iterator { - ($iter:expr) => {{ - let iter = $iter; - let size_hint = iter.size_hint(); - let len = iter.len(); - let count = iter.count(); - assert_eq!(len, count); - assert_eq!(size_hint, (count, Some(count))); - }}; -} - -#[test] -fn pairs() { - let mut p: Punctuated<_, Token![,]> = punctuated!(2, 3, 4); - - check_exact_size_iterator!(p.pairs()); - check_exact_size_iterator!(p.pairs_mut()); - check_exact_size_iterator!(p.into_pairs()); - - let mut p: Punctuated<_, Token![,]> = punctuated!(2, 3, 4); - - assert_eq!(p.pairs().next_back().map(Pair::into_value), Some(&4)); - assert_eq!( - p.pairs_mut().next_back().map(Pair::into_value), - Some(&mut 4) - ); - assert_eq!(p.into_pairs().next_back().map(Pair::into_value), Some(4)); -} - -#[test] -fn iter() { - let mut p: Punctuated<_, Token![,]> = punctuated!(2, 3, 4); - - check_exact_size_iterator!(p.iter()); - check_exact_size_iterator!(p.iter_mut()); - check_exact_size_iterator!(p.into_iter()); - - let mut p: Punctuated<_, Token![,]> = punctuated!(2, 3, 4); - - assert_eq!(p.iter().next_back(), Some(&4)); - assert_eq!(p.iter_mut().next_back(), Some(&mut 4)); - assert_eq!(p.into_iter().next_back(), Some(4)); -} |