1 files changed, 55 insertions, 0 deletions
diff --git a/src/boost/libs/metaparse/test/optional.cpp b/src/boost/libs/metaparse/test/optional.cpp
new file mode 100644
index 000000000..4bba83b26
--- /dev/null
+++ b/src/boost/libs/metaparse/test/optional.cpp
@@ -0,0 +1,55 @@
+// Copyright Abel Sinkovics (abel@sinkovics.hu) 2015.
+// Distributed under the Boost Software License, Version 1.0.
+//    (See accompanying file LICENSE_1_0.txt or copy at
+//          http://www.boost.org/LICENSE_1_0.txt)
+
+#include <boost/metaparse/optional.hpp>
+#include <boost/metaparse/string.hpp>
+#include <boost/metaparse/lit_c.hpp>
+#include <boost/metaparse/get_result.hpp>
+#include <boost/metaparse/start.hpp>
+
+#include <boost/mpl/assert.hpp>
+#include <boost/mpl/equal_to.hpp>
+#include <boost/mpl/char.hpp>
+
+#include <boost/type_traits/is_same.hpp>
+
+#include "test_case.hpp"
+
+BOOST_METAPARSE_TEST_CASE(optional)
+{
+  using boost::metaparse::optional;
+  using boost::metaparse::lit_c;
+  using boost::metaparse::string;
+  using boost::metaparse::get_result;
+  using boost::metaparse::start;
+  
+  using boost::mpl::equal_to;
+
+  using boost::is_same;
+
+  typedef optional<lit_c<'x'>, double> optional_x;
+
+  // test_optional_parser_succeeds
+  BOOST_MPL_ASSERT((
+    equal_to<
+      boost::mpl::char_<'x'>,
+      get_result<optional_x::apply<string<'x'>, start> >::type
+    >
+  ));
+
+  // test_optional_parser_fails
+  BOOST_MPL_ASSERT((
+    is_same<double, get_result<optional_x::apply<string<'y'>, start> >::type>
+  ));
+
+  // test_optional_parser_default_value
+  BOOST_MPL_ASSERT((
+    is_same<
+      void,
+      get_result<optional<lit_c<'x'> >::apply<string<'y'>, start> >::type
+    >
+  ));
+}
+