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// 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 Stream<ProgressEvent> get onReadyStateChange
/// Stream of readystatechange events handled by this HttpRequest.
/// Event listeners to be notified every time the HttpRequest object's readyState
/// changes values.
/// @description Checks that readyState is changed every time an event is fired.
import "dart:html";
import "../../../Utils/expect.dart";
main() {
var request = new HttpRequest();
var oldState = null;'GET', "test.dart");
request.onReadyStateChange.listen((event) {
var newState = request.readyState;
Expect.isFalse(newState == oldState);
oldState = newState;
if (HttpRequest.DONE == newState) {