import quincy beta 17.1.0

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

diff --git a/ceph/src/boost/libs/leaf/test/preload_basic_test.cpp b/ceph/src/boost/libs/leaf/test/preload_basic_test.cpp
new file mode 100644 (file)
index 0000000..a0c9d3a
--- /dev/null
+++ b/ceph/src/boost/libs/leaf/test/preload_basic_test.cpp
@@ -0,0 +1,78 @@
+// 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/on_error.hpp>
+#include <boost/leaf/handle_errors.hpp>
+#include <boost/leaf/result.hpp>
+#include "lightweight_test.hpp"
+#include <sstream>
+
+namespace leaf = boost::leaf;
+
+template <int>
+struct info
+{
+    int value;
+};
+
+template <class G>
+leaf::error_id f( G && g )
+{
+    return std::forward<G>(g)();
+}
+
+template <class G>
+void test( G && g )
+{
+    int r = leaf::try_handle_all(
+        [&]() -> leaf::result<int>
+        {
+            return f(std::move(g));
+        },
+        []( info<42> const & i42, leaf::diagnostic_info const & di )
+        {
+            BOOST_TEST_EQ(i42.value, 42);
+            std::stringstream ss; ss << di;
+            std::string s = ss.str();
+            std::cout << s;
+#if BOOST_LEAF_DIAGNOSTICS
+            BOOST_TEST(s.find("info<-42>")!=s.npos);
+#else
+            BOOST_TEST(s.find("BOOST_LEAF_DIAGNOSTICS")!=s.npos);
+#endif
+            return 1;
+        },
+        []
+        {
+            return 2;
+        } );
+    BOOST_TEST_EQ(r, 1);
+}
+
+int main()
+{
+    test(
+        []
+        {
+            auto load = leaf::on_error( info<42>{42}, info<-42>{-42} );
+            return leaf::new_error();
+        });
+    test(
+        []
+        {
+            info<42> inf1{42};
+            info<-42> const inf2{-42};
+            auto load = leaf::on_error( inf1, inf2 );
+            return leaf::new_error();
+        });
+    test(
+        []
+        {
+            info<42> inf1{42};
+            auto load = leaf::on_error( inf1, info<-42>{-42} );
+            return leaf::new_error();
+        });
+    return boost::report_errors();
+}