sync with N3126

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@113101 91177308-0d34-0410-b5e6-96231b3b80d8

test/containers/container.adaptors/queue/queue.defn/push.pass.cpp

@@ -0,0 +1,32 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <queue>
+
+// void push(const value_type& v);
+
+#include <queue>
+#include <cassert>
+
+int main()
+{
+    std::queue<int> q;
+    q.push(1);
+    assert(q.size() == 1);
+    assert(q.front() == 1);
+    assert(q.back() == 1);
+    q.push(2);
+    assert(q.size() == 2);
+    assert(q.front() == 1);
+    assert(q.back() == 2);
+    q.push(3);
+    assert(q.size() == 3);
+    assert(q.front() == 1);
+    assert(q.back() == 3);
+}