From 2084f2ed77e28d78c8dfbd378251b29068a8c579 Mon Sep 17 00:00:00 2001
From: Corey Farwell <coreyf@rwell.org>
Date: Wed, 30 Mar 2016 19:12:29 -0400
Subject: Implement `values_mut` on `BTreeMap`.

https://github.com/rust-lang/rust/issues/32551
---
 src/libcollectionstest/btree/map.rs | 15 +++++++++++++++
 src/libcollectionstest/lib.rs       |  1 +
 2 files changed, 16 insertions(+)

(limited to 'src/libcollectionstest')

diff --git a/src/libcollectionstest/btree/map.rs b/src/libcollectionstest/btree/map.rs
index a27c2847a98..619bc189e6c 100644
--- a/src/libcollectionstest/btree/map.rs
+++ b/src/libcollectionstest/btree/map.rs
@@ -114,6 +114,21 @@ fn test_iter_rev() {
     test(size, map.into_iter().rev());
 }
 
+#[test]
+fn test_values_mut() {
+    let mut a = BTreeMap::new();
+    a.insert(1, String::from("hello"));
+    a.insert(2, String::from("goodbye"));
+
+    for value in a.values_mut() {
+        value.push_str("!");
+    }
+
+    let values: Vec<String> = a.values().cloned().collect();
+    assert_eq!(values, [String::from("hello!"),
+                        String::from("goodbye!")]);
+}
+
 #[test]
 fn test_iter_mixed() {
     let size = 10000;
diff --git a/src/libcollectionstest/lib.rs b/src/libcollectionstest/lib.rs
index 62fefaa10f6..045ac1ce977 100644
--- a/src/libcollectionstest/lib.rs
+++ b/src/libcollectionstest/lib.rs
@@ -22,6 +22,7 @@
 #![feature(enumset)]
 #![feature(iter_arith)]
 #![feature(map_entry_keys)]
+#![feature(map_values_mut)]
 #![feature(pattern)]
 #![feature(rand)]
 #![feature(set_recovery)]
-- 
cgit 1.4.1-3-g733a5