# File test/unit/assertions.rb, line 120
                        def assert_kind_of(klass, object, message="")
                                _wrap_assertion {
                                        assert(klass.kind_of?(Module), "The first parameter to assert_kind_of should be a kind_of Module.")
                                        full_message = build_message(message, object, klass) {
                                                | arg1, arg2 |
                                                "<#{arg1}>\n" +
                                                "expected to be kind_of?<#{arg2}>"
                                        }
                                        assert_block(full_message) {
                                                object.kind_of?(klass)
                                        }
                                }
                        end