diff --git a/test/iso_week/year_lastweek_weekday.pass.cpp b/test/iso_week/year_lastweek_weekday.pass.cpp
new file mode 100644
index 0000000..59a43aa
--- /dev/null
+++ b/test/iso_week/year_lastweek_weekday.pass.cpp
@@ -0,0 +1,118 @@
+// The MIT License (MIT)
+// 
+// Copyright (c) 2015 Howard Hinnant
+// 
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+// 
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+// 
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+// SOFTWARE.
+
+// class year_lastweek_weekday
+// {
+// public:
+//     constexpr year_lastweek_weekday(const iso_week::year& y,
+//                                     const iso_week::weekday& wd) noexcept;
+// 
+//     year_lastweek_weekday& operator+=(const years& y) noexcept;
+//     year_lastweek_weekday& operator-=(const years& y) noexcept;
+// 
+//     constexpr iso_week::year    year()    const noexcept;
+//     constexpr iso_week::weeknum weeknum() const noexcept;
+//     constexpr iso_week::weekday weekday() const noexcept;
+// 
+//     constexpr operator day_point() const noexcept;
+//     constexpr bool ok() const noexcept;
+// };
+// 
+// constexpr bool operator==(const year_lastweek_weekday& x, const year_lastweek_weekday& y) noexcept;
+// constexpr bool operator!=(const year_lastweek_weekday& x, const year_lastweek_weekday& y) noexcept;
+// constexpr bool operator< (const year_lastweek_weekday& x, const year_lastweek_weekday& y) noexcept;
+// constexpr bool operator> (const year_lastweek_weekday& x, const year_lastweek_weekday& y) noexcept;
+// constexpr bool operator<=(const year_lastweek_weekday& x, const year_lastweek_weekday& y) noexcept;
+// constexpr bool operator>=(const year_lastweek_weekday& x, const year_lastweek_weekday& y) noexcept;
+// 
+// constexpr year_lastweek_weekday operator+(const year_lastweek_weekday& x, const years& y) noexcept;
+// constexpr year_lastweek_weekday operator+(const years& y, const year_lastweek_weekday& x) noexcept;
+// constexpr year_lastweek_weekday operator-(const year_lastweek_weekday& x, const years& y) noexcept;
+// 
+// std::ostream& operator<<(std::ostream& os, const year_lastweek_weekday& x);
+
+#include "iso_week.h"
+
+#include <cassert>
+#include <sstream>
+#include <type_traits>
+
+static_assert( std::is_trivially_destructible<iso_week::year_lastweek_weekday>{}, "");
+static_assert(!std::is_default_constructible<iso_week::year_lastweek_weekday>{}, "");
+static_assert( std::is_trivially_copy_constructible<iso_week::year_lastweek_weekday>{}, "");
+static_assert( std::is_trivially_copy_assignable<iso_week::year_lastweek_weekday>{}, "");
+static_assert( std::is_trivially_move_constructible<iso_week::year_lastweek_weekday>{}, "");
+static_assert( std::is_trivially_move_assignable<iso_week::year_lastweek_weekday>{}, "");
+
+static_assert(std::is_trivially_copyable<iso_week::year_lastweek_weekday>{}, "");
+static_assert(std::is_standard_layout<iso_week::year_lastweek_weekday>{}, "");
+static_assert(std::is_literal_type<iso_week::year_lastweek_weekday>{}, "");
+
+static_assert( std::is_nothrow_constructible<iso_week::year_lastweek_weekday,
+                                                 iso_week::year, iso_week::weekday>{}, "");
+static_assert( std::is_nothrow_constructible<iso_week::day_point,
+                                                 iso_week::year_lastweek_weekday>{}, "");
+static_assert( std::is_convertible<iso_week::year_lastweek_weekday,
+                                       iso_week::day_point>{}, "");
+
+int
+main()
+{
+    using namespace iso_week;
+
+    constexpr auto x0 = year_lastweek_weekday{2015_y, tue};
+    static_assert(x0.year() == 2015_y, "");
+    static_assert(x0.weeknum() == 53_w, "");
+    static_assert(x0.weekday() == tue, "");
+
+    auto x3 = x0;
+    x3 += years{2};
+    assert(x3.year() == 2017_y);
+    assert(x3.weeknum() == 52_w);
+    assert(x3.weekday() == tue);
+
+    x3 -= years{1};
+    assert(x3.year() == 2016_y);
+    assert(x3.weeknum() == 52_w);
+    assert(x3.weekday() == tue);
+
+    x3 -= years{1};
+    assert(x3.year() == 2015_y);
+    assert(x3.weeknum() == 53_w);
+    assert(x3.weekday() == tue);
+
+    constexpr day_point dp = 2015_y/last/wed;
+    static_assert(dp == day_point{days{16799}}, "");
+
+    static_assert(x0.ok(), "");
+    assert(x3.ok());
+
+    static_assert(2015_y/last/mon < 2015_y/last/sun, "");
+
+    static_assert(x0 + years{3} == 2018_y/last/tue, "");
+    static_assert(years{3} + x0 == 2018_y/last/tue, "");
+    static_assert(x0 - years{3} == 2012_y/last/tue, "");
+
+    std::ostringstream os;
+    os << x0;
+    assert(os.str() == "2015-W last-Tue");
+}