1 files changed, 49 insertions, 0 deletions
diff --git a/libcxx/test/thread/futures/futures.promise/alloc_ctor.pass.cpp b/libcxx/test/thread/futures/futures.promise/alloc_ctor.pass.cpp
new file mode 100644
index 00000000000..da7353cf65c
--- /dev/null
+++ b/libcxx/test/thread/futures/futures.promise/alloc_ctor.pass.cpp
@@ -0,0 +1,49 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <future>
+
+// class promise<R>
+
+// template <class Allocator>
+//   promise(allocator_arg_t, const Allocator& a);
+
+#include <future>
+#include <cassert>
+
+#include "../test_allocator.h"
+
+int main()
+{
+    assert(test_alloc_base::count == 0);
+    {
+        std::promise<int> p(std::allocator_arg, test_allocator<int>());
+        assert(test_alloc_base::count == 1);
+        std::future<int> f = p.get_future();
+        assert(test_alloc_base::count == 1);
+        assert(f.valid());
+    }
+    assert(test_alloc_base::count == 0);
+    {
+        std::promise<int&> p(std::allocator_arg, test_allocator<int>());
+        assert(test_alloc_base::count == 1);
+        std::future<int&> f = p.get_future();
+        assert(test_alloc_base::count == 1);
+        assert(f.valid());
+    }
+    assert(test_alloc_base::count == 0);
+    {
+        std::promise<void> p(std::allocator_arg, test_allocator<void>());
+        assert(test_alloc_base::count == 1);
+        std::future<void> f = p.get_future();
+        assert(test_alloc_base::count == 1);
+        assert(f.valid());
+    }
+    assert(test_alloc_base::count == 0);
+}