From e0855bccd356d191074a83c2aeedabd88d2b7bab Mon Sep 17 00:00:00 2001
From: Renato Zannon <renato@rrsz.com.br>
Date: Mon, 9 Jun 2014 23:54:52 -0300
Subject: [PATCH] Add a test for nested Arena.alloc

---
 src/libarena/lib.rs | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/src/libarena/lib.rs b/src/libarena/lib.rs
index 7e0cda26014..ecf595e45d9 100644
--- a/src/libarena/lib.rs
+++ b/src/libarena/lib.rs
@@ -298,6 +298,20 @@ fn test_arena_destructors() {
     }
 }
 
+#[test]
+fn test_arena_alloc_nested() {
+    struct Inner { value: uint }
+    struct Outer<'a> { inner: &'a Inner }
+
+    let arena = Arena::new();
+
+    let result = arena.alloc(|| Outer {
+        inner: arena.alloc(|| Inner { value: 10 })
+    });
+
+    assert_eq!(result.inner.value, 10);
+}
+
 #[test]
 #[should_fail]
 fn test_arena_destructors_fail() {