pin docs: add some forward references

[rust.git] / library / alloc / tests / btree / map.rs

diff --git a/library/alloc/tests/btree/map.rs b/library/alloc/tests/btree/map.rs
index f9f81716e357c243b3c7ec9add10b11f6dabff5e..5777bd60907144b9ccac9c0f30b973977a35761a 100644 (file)
--- a/library/alloc/tests/btree/map.rs
+++ b/library/alloc/tests/btree/map.rs
@@ -1461,3 +1461,27 @@ fn drop(&mut self) {
         assert_eq!(DROPS.load(Ordering::SeqCst), size);
     }
 }
+
+#[test]
+fn test_into_keys() {
+    let vec = vec![(1, 'a'), (2, 'b'), (3, 'c')];
+    let map: BTreeMap<_, _> = vec.into_iter().collect();
+    let keys: Vec<_> = map.into_keys().collect();
+
+    assert_eq!(keys.len(), 3);
+    assert!(keys.contains(&1));
+    assert!(keys.contains(&2));
+    assert!(keys.contains(&3));
+}
+
+#[test]
+fn test_into_values() {
+    let vec = vec![(1, 'a'), (2, 'b'), (3, 'c')];
+    let map: BTreeMap<_, _> = vec.into_iter().collect();
+    let values: Vec<_> = map.into_values().collect();
+
+    assert_eq!(values.len(), 3);
+    assert!(values.contains(&'a'));
+    assert!(values.contains(&'b'));
+    assert!(values.contains(&'c'));
+}