1 files changed, 35 insertions, 0 deletions
diff --git a/test/std/thread/futures/futures.unique_future/default.pass.cpp b/test/std/thread/futures/futures.unique_future/default.pass.cpp
new file mode 100644
index 000000000000..84cb84650dcd
--- /dev/null
+++ b/test/std/thread/futures/futures.unique_future/default.pass.cpp
@@ -0,0 +1,35 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// UNSUPPORTED: libcpp-has-no-threads
+
+// <future>
+
+// class future<R>
+
+// future();
+
+#include <future>
+#include <cassert>
+
+int main()
+{
+    {
+        std::future<int> f;
+        assert(!f.valid());
+    }
+    {
+        std::future<int&> f;
+        assert(!f.valid());
+    }
+    {
+        std::future<void> f;
+        assert(!f.valid());
+    }
+}