1 files changed, 69 insertions, 0 deletions
diff --git a/test/std/containers/unord/unord.set/count.pass.cpp b/test/std/containers/unord/unord.set/count.pass.cpp
new file mode 100644
index 0000000000000..83bb8aaa2be03
--- /dev/null
+++ b/test/std/containers/unord/unord.set/count.pass.cpp
@@ -0,0 +1,69 @@
+//===----------------------------------------------------------------------===//
+//
+//                     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.
+//
+//===----------------------------------------------------------------------===//
+
+// <unordered_set>
+
+// template <class Value, class Hash = hash<Value>, class Pred = equal_to<Value>,
+//           class Alloc = allocator<Value>>
+// class unordered_set
+
+// size_type count(const key_type& k) const;
+
+#include <unordered_set>
+#include <cassert>
+
+#include "min_allocator.h"
+
+int main()
+{
+    {
+        typedef std::unordered_set<int> C;
+        typedef int P;
+        P a[] =
+        {
+            P(10),
+            P(20),
+            P(30),
+            P(40),
+            P(50),
+            P(50),
+            P(50),
+            P(60),
+            P(70),
+            P(80)
+        };
+        const C c(std::begin(a), std::end(a));
+        assert(c.count(30) == 1);
+        assert(c.count(50) == 1);
+        assert(c.count(5) == 0);
+    }
+#if __cplusplus >= 201103L
+    {
+        typedef std::unordered_set<int, std::hash<int>, std::equal_to<int>, min_allocator<int>> C;
+        typedef int P;
+        P a[] =
+        {
+            P(10),
+            P(20),
+            P(30),
+            P(40),
+            P(50),
+            P(50),
+            P(50),
+            P(60),
+            P(70),
+            P(80)
+        };
+        const C c(std::begin(a), std::end(a));
+        assert(c.count(30) == 1);
+        assert(c.count(50) == 1);
+        assert(c.count(5) == 0);
+    }
+#endif
+}