1 files changed, 44 insertions, 0 deletions
diff --git a/src/boost/libs/spirit/test/x3/eps.cpp b/src/boost/libs/spirit/test/x3/eps.cpp
new file mode 100644
index 00000000..d4bfac28
--- /dev/null
+++ b/src/boost/libs/spirit/test/x3/eps.cpp
@@ -0,0 +1,44 @@
+/*=============================================================================
+    Copyright (c) 2001-2015 Joel de Guzman
+
+    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/detail/lightweight_test.hpp>
+#include <boost/spirit/home/x3.hpp>
+
+#include <iostream>
+#include "test.hpp"
+
+int
+main()
+{
+    using spirit_test::test;
+    using boost::spirit::x3::eps;
+    using boost::spirit::x3::unused_type;
+
+    {
+        BOOST_TEST((test("", eps)));
+        BOOST_TEST((test("xxx", eps, false)));
+        //~ BOOST_TEST((!test("", !eps))); // not predicate $$$ Implement me! $$$
+    }
+
+    {   // test non-lazy semantic predicate
+
+        BOOST_TEST((test("", eps(true))));
+        BOOST_TEST((!test("", eps(false))));
+        BOOST_TEST((test("", !eps(false))));
+    }
+
+    {   // test lazy semantic predicate
+
+        auto true_ = [](unused_type) { return true; };
+        auto false_ = [](unused_type) { return false; };
+
+        BOOST_TEST((test("", eps(true_))));
+        BOOST_TEST((!test("", eps(false_))));
+        BOOST_TEST((test("", !eps(false_))));
+    }
+
+    return boost::report_errors();
+}