# File tests/wntestcase.rb, line 219
                def assert_has_ivar( sym, object )
                        sym = "@#{sym}" unless /^@/ =~ sym.to_s
                        msg = "Object <%s> expected to have an instance variable <%s>" %
                                [ object.inspect, sym ]
                        assert_block( msg ) {
                                object.instance_variables.include?( sym.to_s )
                        }
                end