import quincy beta 17.1.0

[ceph.git] / ceph / src / boost / libs / leaf / test / context_activator_test.cpp

diff --git a/ceph/src/boost/libs/leaf/test/context_activator_test.cpp b/ceph/src/boost/libs/leaf/test/context_activator_test.cpp
new file mode 100644 (file)
index 0000000..352da4d
--- /dev/null
+++ b/ceph/src/boost/libs/leaf/test/context_activator_test.cpp
@@ -0,0 +1,52 @@
+// Copyright (c) 2018-2020 Emil Dotchevski and Reverge Studios, Inc.
+
+// 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/leaf/context.hpp>
+#include <boost/leaf/handle_errors.hpp>
+#include <boost/leaf/result.hpp>
+#include "lightweight_test.hpp"
+
+namespace leaf = boost::leaf;
+
+template <int>
+struct info
+{
+    int value;
+};
+
+template <class Ctx>
+leaf::result<int> f( Ctx & ctx )
+{
+    auto active_context = activate_context(ctx);
+    return leaf::new_error( info<1>{1} );
+}
+
+int main()
+{
+    auto error_handlers = std::make_tuple(
+        []( info<1> x )
+        {
+            BOOST_TEST(x.value==1);
+            return 1;
+        },
+        []
+        {
+            return 2;
+        } );
+
+    int r = leaf::try_handle_all(
+        [&]
+        {
+            auto ctx = leaf::make_context(error_handlers);
+            auto active_context = activate_context(ctx);
+            auto r = f(ctx);
+            ctx.propagate();
+            return r;
+        },
+        error_handlers );
+    BOOST_TEST_EQ(r, 1);
+
+    return boost::report_errors();
+}