| // Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file |
| // for details. All rights reserved. Use of this source code is governed by a |
| // BSD-style license that can be found in the LICENSE file. |
| |
| /// @assertion const EventStreamProvider<ProgressEvent> readyStateChangeEvent |
| /// Static factory designed to expose readystatechange events to event handlers |
| /// that are not necessarily instances of HttpRequest. |
| /// @description Checks that readystatechange events are exposed. |
| |
| import "dart:html"; |
| import "dart:async"; |
| import "../../../Utils/expect.dart"; |
| |
| main() { |
| var request = new HttpRequest(); |
| EventStreamProvider<Event> sreamProvider = |
| HttpRequest.readyStateChangeEvent; |
| Stream<Event> stream = sreamProvider.forTarget(document); |
| stream.listen((event) { |
| Expect.equals("readystatechange", event.type, "stream.listen.onData"); |
| }, onError: (Object error) { |
| Expect.fail("stream.listen:onError($error)"); |
| }); |
| |
| request.open('GET', "test.dart"); |
| Expect.equals(HttpRequest.OPENED, request.readyState, "after open"); |
| asyncStart(); |
| request.onLoad.listen((event) { |
| switch (request.readyState) { |
| case HttpRequest.DONE: |
| asyncEnd(); |
| break; |
| case HttpRequest.HEADERS_RECEIVED: |
| break; |
| case HttpRequest.LOADING: |
| break; |
| default: |
| Expect.fail( |
| "request.onLoad.listen: unexpected readyState:${request.readyState}"); |
| } |
| }, onError: (Object error) { |
| Expect.fail("request.onLoad.listen:onError($error)"); |
| }); |
| request.send(); |
| Expect.equals(HttpRequest.OPENED, request.readyState, "after send"); |
| } |