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diff --git a/Tools/TestWebKitAPI/Tests/WTF/UniqueRef.cpp b/Tools/TestWebKitAPI/Tests/WTF/UniqueRef.cpp
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+++ b/Tools/TestWebKitAPI/Tests/WTF/UniqueRef.cpp
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+/*
+ * Copyright (C) 2016 Apple Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
+ * THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "config.h"
+
+#include <wtf/UniqueRef.h>
+#include <wtf/Vector.h>
+
+namespace TestWebKitAPI {
+    
+class A { };
+class B {
+public:
+    B(int a, int b, int c)
+        : a(a)
+        , b(b)
+        , c(c)
+    { };
+    int a;
+    int b;
+    int c;
+};
+class C {
+public:
+    C(UniqueRef<A>&& a)
+        : a(WTFMove(a))
+    { }
+    UniqueRef<A> a;
+};
+class D : public A { };
+
+void function(const UniqueRef<A> a)
+{
+    const A& b = a.get();
+    const A* c = &a;
+    UNUSED_PARAM(b);
+    UNUSED_PARAM(c);
+}
+
+TEST(WTF, UniqueRef)
+{
+    UniqueRef<A> a = makeUniqueRef<A>();
+    UniqueRef<B> b = makeUniqueRef<B>(1, 2, 3);
+    B& c = b.get();
+    const B& d = b.get();
+    B* e = &b;
+    const B* f = &b;
+    UniqueRef<A> j = WTFMove(a);
+    
+    Vector<UniqueRef<B>> v;
+    v.append(makeUniqueRef<B>(4, 5, 6));
+    v.append(makeUniqueRef<B>(7, 8, 9));
+    UniqueRef<B> g = v.takeLast();
+    ASSERT_EQ(g->b, 8);
+    ASSERT_EQ(v.last()->b, 5);
+    
+    C h(makeUniqueRef<A>());
+    C i(makeUniqueRef<D>());
+    
+    UNUSED_PARAM(b);
+    UNUSED_PARAM(c);
+    UNUSED_PARAM(d);
+    UNUSED_PARAM(e);
+    UNUSED_PARAM(f);
+    UNUSED_PARAM(g);
+    UNUSED_PARAM(h);
+    UNUSED_PARAM(i);
+    UNUSED_PARAM(j);
+}
+
+} // namespace TestWebKitAPI