test VecDeque

Author: RalfJung

tests/run-pass/vecdeque.rs

@@ -0,0 +1,15 @@
+use std::collections::VecDeque;
+
+fn main() {
+    let mut dst = VecDeque::new();
+    dst.push_front(Box::new(1));
+    dst.push_front(Box::new(2));
+    dst.pop_back();
+
+    let mut src = VecDeque::new();
+    src.push_front(Box::new(2));
+    dst.append(&mut src);
+    for a in dst {
+      assert_eq!(*a, 2);
+    }
+}