Add quick test target (for CI)

test/Jamfile.v2

@@ -40,3 +40,5 @@ test-suite program_options :
         
 exe test_convert : test_convert.cpp ;   
 
+# `quick` target (for CI)
+run quick.cpp : --path=initial ;

test/quick.cpp

@@ -0,0 +1,49 @@
+
+// Copyright 2017 Peter Dimov.
+//
+// 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
+
+// See library home page at http://www.boost.org/libs/program_options
+
+#include <boost/program_options.hpp>
+#include <boost/core/lightweight_test.hpp>
+
+namespace po = boost::program_options;
+
+int main( int argc, char const* argv[] )
+{
+    po::options_description desc( "Allowed options" );
+
+    desc.add_options()
+        ( "path,p", po::value<std::string>(), "set initial path" )
+    ;
+
+    po::variables_map vm;
+
+    try
+    {
+        po::store( po::parse_command_line( argc, argv, desc ), vm );
+        po::notify( vm );
+    }
+    catch( std::exception const & x )
+    {
+        std::cerr << "Error: " << x.what() << std::endl;
+        return 1;
+    }
+
+    std::string p;
+
+    if( vm.count( "path" ) )
+    {
+        p = vm[ "path" ].as<std::string>();
+    }
+
+    std::string expected( "initial" );
+
+    BOOST_TEST_EQ( p, expected );
+
+    return boost::report_errors();
+}