1 files changed, 72 insertions, 0 deletions
diff --git a/src/boost/libs/hana/test/optional/laws.cpp b/src/boost/libs/hana/test/optional/laws.cpp
new file mode 100644
index 000000000..9b0b87cc0
--- /dev/null
+++ b/src/boost/libs/hana/test/optional/laws.cpp
@@ -0,0 +1,72 @@
+// Copyright Louis Dionne 2013-2017
+// Distributed under the Boost Software License, Version 1.0.
+// (See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt)
+
+#include <boost/hana/bool.hpp>
+#include <boost/hana/optional.hpp>
+#include <boost/hana/tuple.hpp>
+
+#include <laws/applicative.hpp>
+#include <laws/base.hpp>
+#include <laws/comparable.hpp>
+#include <laws/foldable.hpp>
+#include <laws/functor.hpp>
+#include <laws/monad.hpp>
+#include <laws/monad_plus.hpp>
+#include <laws/orderable.hpp>
+#include <laws/searchable.hpp>
+namespace hana = boost::hana;
+using hana::test::ct_eq;
+using hana::test::ct_ord;
+
+
+int main() {
+    auto ords = hana::make_tuple(
+        hana::nothing,
+        hana::just(ct_ord<0>{}),
+        hana::just(ct_ord<1>{}),
+        hana::just(ct_ord<2>{})
+    );
+
+    auto eqs = hana::make_tuple(
+        hana::nothing,
+        hana::just(ct_eq<0>{}),
+        hana::just(ct_eq<1>{}),
+        hana::just(ct_eq<2>{})
+    );
+
+    auto eq_values = hana::make_tuple(ct_eq<0>{}, ct_eq<2>{}, ct_eq<3>{});
+
+    auto predicates = hana::make_tuple(
+        hana::equal.to(ct_eq<0>{}),
+        hana::equal.to(ct_eq<2>{}),
+        hana::equal.to(ct_eq<3>{}),
+        hana::always(hana::false_c),
+        hana::always(hana::true_c)
+    );
+
+    auto nested_eqs = hana::make_tuple(
+        hana::nothing,
+        hana::just(hana::just(ct_eq<0>{})),
+        hana::just(hana::nothing),
+        hana::just(hana::just(ct_eq<2>{}))
+    );
+
+
+    hana::test::TestComparable<hana::optional_tag>{eqs};
+    hana::test::TestOrderable<hana::optional_tag>{ords};
+    hana::test::TestFunctor<hana::optional_tag>{eqs, eq_values};
+    hana::test::TestApplicative<hana::optional_tag>{eqs};
+    hana::test::TestMonad<hana::optional_tag>{eqs, nested_eqs};
+    hana::test::TestMonadPlus<hana::optional_tag>{eqs, predicates, eq_values};
+    hana::test::TestSearchable<hana::optional_tag>{eqs, eq_values};
+    hana::test::TestSearchable<hana::optional_tag>{
+        hana::make_tuple(
+            hana::just(hana::true_c),
+            hana::just(hana::false_c),
+            hana::nothing
+        ),
+        hana::make_tuple(hana::true_c, hana::false_c)
+    };
+    hana::test::TestFoldable<hana::optional_tag>{eqs};
+}