1 files changed, 39 insertions, 0 deletions
diff --git a/src/boost/libs/contract/test/specify/pre.cpp b/src/boost/libs/contract/test/specify/pre.cpp
new file mode 100644
index 00000000..4c02acd2
--- /dev/null
+++ b/src/boost/libs/contract/test/specify/pre.cpp
@@ -0,0 +1,39 @@
+
+// Copyright (C) 2008-2018 Lorenzo Caminiti
+// Distributed under the Boost Software License, Version 1.0 (see accompanying
+// file LICENSE_1_0.txt or a copy at http://www.boost.org/LICENSE_1_0.txt).
+// See: http://www.boost.org/doc/libs/release/libs/contract/doc/html/index.html
+
+// Test specifying pre, no old, post, or except (same if not free func).
+
+#include "../detail/oteststream.hpp"
+#include <boost/contract/function.hpp>
+#include <boost/contract/check.hpp>
+#include <boost/detail/lightweight_test.hpp>
+#include <sstream>
+
+boost::contract::test::detail::oteststream out;
+
+void f() {
+    boost::contract::check c = boost::contract::function()
+        .precondition([] { out << "f::pre" << std::endl; })
+    ;
+    out << "f::body" << std::endl;
+}
+
+int main() {
+    std::ostringstream ok;
+
+    out.str("");
+    f();
+    ok.str(""); ok
+        #ifndef BOOST_CONTRACT_NO_PRECONDITIONS
+            << "f::pre" << std::endl
+        #endif
+        << "f::body" << std::endl
+    ;
+    BOOST_TEST(out.eq(ok.str()));
+
+    return boost::report_errors();
+}
+