1 files changed, 69 insertions, 0 deletions
diff --git a/test/std/utilities/time/time.point/time.point.cast/ceil.pass.cpp b/test/std/utilities/time/time.point/time.point.cast/ceil.pass.cpp
new file mode 100644
index 000000000000..379929c7f2d8
--- /dev/null
+++ b/test/std/utilities/time/time.point/time.point.cast/ceil.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.
+//
+//===----------------------------------------------------------------------===//
+
+// UNSUPPORTED: c++03, c++11, c++14
+// <chrono>
+
+// ceil
+
+// template <class ToDuration, class Clock, class Duration>
+//   time_point<Clock, ToDuration>
+//   ceil(const time_point<Clock, Duration>& t);
+
+#include <chrono>
+#include <type_traits>
+#include <cassert>
+
+template <class FromDuration, class ToDuration>
+void
+test(const FromDuration& df, const ToDuration& d)
+{
+    typedef std::chrono::system_clock Clock;
+    typedef std::chrono::time_point<Clock, FromDuration> FromTimePoint;
+    typedef std::chrono::time_point<Clock, ToDuration> ToTimePoint;
+    {
+    FromTimePoint f(df);
+    ToTimePoint t(d);
+    typedef decltype(std::chrono::ceil<ToDuration>(f)) R;
+    static_assert((std::is_same<R, ToTimePoint>::value), "");
+    assert(std::chrono::ceil<ToDuration>(f) == t);
+    }
+}
+
+template<class FromDuration, long long From, class ToDuration, long long To>
+void test_constexpr ()
+{
+    typedef std::chrono::system_clock Clock;
+    typedef std::chrono::time_point<Clock, FromDuration> FromTimePoint;
+    typedef std::chrono::time_point<Clock, ToDuration> ToTimePoint;
+    {
+    constexpr FromTimePoint f{FromDuration{From}};
+    constexpr ToTimePoint   t{ToDuration{To}};
+    static_assert(std::chrono::ceil<ToDuration>(f) == t, "");
+    }
+}
+
+
+int main()
+{
+//  7290000ms is 2 hours, 1 minute, and 30 seconds
+    test(std::chrono::milliseconds( 7290000), std::chrono::hours( 3));
+    test(std::chrono::milliseconds(-7290000), std::chrono::hours(-2));
+    test(std::chrono::milliseconds( 7290000), std::chrono::minutes( 122));
+    test(std::chrono::milliseconds(-7290000), std::chrono::minutes(-121));
+
+//  9000000ms is 2 hours and 30 minutes
+    test_constexpr<std::chrono::milliseconds, 9000000, std::chrono::hours,    3> ();
+    test_constexpr<std::chrono::milliseconds,-9000000, std::chrono::hours,   -2> ();
+    test_constexpr<std::chrono::milliseconds, 9000001, std::chrono::minutes, 151> ();
+    test_constexpr<std::chrono::milliseconds,-9000001, std::chrono::minutes,-150> ();
+
+    test_constexpr<std::chrono::milliseconds, 9000000, std::chrono::seconds, 9000> ();
+    test_constexpr<std::chrono::milliseconds,-9000000, std::chrono::seconds,-9000> ();
+}