# File test/unit/assertions.rb, line 266
                        def assert_not_nil(object, message="")
                                _wrap_assertion {
                                        full_message = build_message(message, object) {
                                                | arg |
                                                "<#{arg}> expected to not be nil"
                                        }
                                        assert_block(full_message) {
                                                ! object.nil?
                                        }
                                }
                        end