Function WindowTestEnvironment

test/fixtures/wpt/resources/testharness.js:51–114

()

     * apisample11.html and apisample12.html.
     */
    function WindowTestEnvironment() {
        this.name_counter = 0;
        this.window_cache = null;
        this.output_handler = null;
        this.all_loaded = false;
        var this_obj = this;
        this.message_events = [];
        this.dispatched_messages = [];

        this.message_functions = {
            start: [add_start_callback, remove_start_callback,
                    function (properties) {
                        this_obj._dispatch("start_callback", [properties],
                                           {type: "start", properties: properties});
                    }],

            test_state: [add_test_state_callback, remove_test_state_callback,
                         function(test) {
                             this_obj._dispatch("test_state_callback", [test],
                                                {type: "test_state",
                                                 test: test.structured_clone()});
                         }],
            result: [add_result_callback, remove_result_callback,
                     function (test) {
                         this_obj.output_handler.show_status();
                         this_obj._dispatch("result_callback", [test],
                                            {type: "result",
                                             test: test.structured_clone()});
                     }],
            completion: [add_completion_callback, remove_completion_callback,
                         function (tests, harness_status, asserts) {
                             var cloned_tests = map(tests, function(test) {
                                 return test.structured_clone();
                             });
                             this_obj._dispatch("completion_callback", [tests, harness_status],
                                                {type: "complete",
                                                 tests: cloned_tests,
                                                 status: harness_status.structured_clone(),
                                                 asserts: asserts.map(assert => assert.structured_clone())});
                         }]
        };

        on_event(window, 'load', function() {
          setTimeout(() => {
            this_obj.all_loaded = true;
            if (tests.all_done()) {
              tests.complete();
            }
          },0);
        });

        on_event(window, 'message', function(event) {
            if (event.data && event.data.type === "getmessages" && event.source) {
                // A window can post "getmessages" to receive a duplicate of every
                // message posted by this environment so far. This allows subscribers
                // from fetch_tests_from_window to 'catch up' to the current state of
                // this environment.
                for (var i = 0; i < this_obj.dispatched_messages.length; ++i)