1 files changed, 35 insertions, 0 deletions
diff --git a/test/std/utilities/time/time.clock/time.clock.system/consistency.pass.cpp b/test/std/utilities/time/time.clock/time.clock.system/consistency.pass.cpp
new file mode 100644
index 000000000000..e277d4e67dc7
--- /dev/null
+++ b/test/std/utilities/time/time.clock/time.clock.system/consistency.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.
+//
+//===----------------------------------------------------------------------===//
+//
+// This test uses new symbols that were not defined in the libc++ shipped on
+// darwin11 and darwin12:
+// XFAIL: with_system_cxx_lib=x86_64-apple-darwin11
+// XFAIL: with_system_cxx_lib=x86_64-apple-darwin12
+
+// <chrono>
+
+// system_clock
+
+// check clock invariants
+
+#include <chrono>
+
+template <class _Tp>
+void test(const _Tp &) {}
+
+int main()
+{
+    typedef std::chrono::system_clock C;
+    static_assert((std::is_same<C::rep, C::duration::rep>::value), "");
+    static_assert((std::is_same<C::period, C::duration::period>::value), "");
+    static_assert((std::is_same<C::duration, C::time_point::duration>::value), "");
+    static_assert((std::is_same<C::time_point::clock, C>::value), "");
+    static_assert((C::is_steady || !C::is_steady), "");
+    test(std::chrono::system_clock::is_steady);
+}