A few iterator tests

Author: jedestep

src/libextra/deque.rs

@@ -500,4 +500,35 @@ mod tests {
         assert_eq!(capacity(&mut d.elts), 64);
     }
 
+    #[test]
+    fn test_iter() {
+        let mut d = Deque::new();
+        for std::int::range(0,5) |i| {
+            d.add_back(i);
+        }
+        assert_eq!(d.iter().collect::<~[&int]>(),
+           ~[&0,&1,&2,&3,&4]);
+        
+        for std::int::range(6,9) |i| {
+            d.add_front(i);
+        }
+        assert_eq!(d.iter().collect::<~[&int]>(),
+            ~[&8,&7,&6,&0,&1,&2,&3,&4]);
+    }
+
+    #[test]
+    fn test_rev_iter() {
+        let mut d = Deque::new();
+        for std::int::range(0,5) |i| {
+            d.add_back(i);
+        }
+        assert_eq!(d.rev_iter().collect::<~[&int]>(),
+           ~[&4,&3,&2,&1,&0]);
+        
+        for std::int::range(6,9) |i| {
+            d.add_front(i);
+        }
+        assert_eq!(d.rev_iter().collect::<~[&int]>(),
+            ~[&4,&3,&2,&1,&0,&6,&7,&8]);
+    }
 }