Jacob Richman
2dcd56ef43
There are far too many files here to review everyone carefully. Spot checking most of the diffs look good as test code is generally written with less care than application code so lots of ugly formatting get through. If people notice files where the automated formatting bothers them feel free to comment indicating file names and I'll move spaces within comments to make the formatting cleaner and use comments to force block formatting as I have done for other case where formatting looked bad. BUG= R=efortuna@google.com Review-Url: https://codereview.chromium.org/2771453003 .
115 lines
3.4 KiB
Dart
115 lines
3.4 KiB
Dart
// Copyright (c) 2011, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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library mutationobserver_test;
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import 'package:unittest/unittest.dart';
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import 'package:unittest/html_individual_config.dart';
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import 'dart:html';
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// Due to https://code.google.com/p/chromium/issues/detail?id=329103
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// mutationObservers sometimes do not fire if the node being observed is GCed
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// so we keep around references to all nodes we have created mutation
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// observers for.
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var keepAlive = [];
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/**
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* Test suite for Mutation Observers. This is just a small set of sanity
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* checks, not a complete test suite.
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*/
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main() {
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useHtmlIndividualConfiguration();
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group('supported', () {
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test('supported', () {
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expect(MutationObserver.supported, true);
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});
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});
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var expectation = MutationObserver.supported ? returnsNormally : throws;
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group('childList', () {
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mutationCallback(count, expectation) {
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var done = false;
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var nodes = [];
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callback(mutations, observer) {
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for (MutationRecord mutation in mutations) {
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for (Node node in mutation.addedNodes) {
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nodes.add(node);
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}
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}
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if (nodes.length >= count) {
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done = true;
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expect(nodes.length, count);
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expect(nodes, expectation);
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}
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}
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// If it's not supported, don't block waiting for it.
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if (!MutationObserver.supported) {
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return () => done;
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}
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return expectAsyncUntil(callback, () => done);
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}
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test('empty options is syntax error', () {
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expect(() {
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var mutationObserver = new MutationObserver((mutations, observer) {
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expect(false, isTrue, reason: 'Should not be reached');
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});
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expect(() {
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mutationObserver.observe(document, {});
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}, throws);
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}, expectation);
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});
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test('direct-parallel options-named', () {
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expect(() {
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var container = new DivElement();
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keepAlive.add(container);
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var div1 = new DivElement();
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var div2 = new DivElement();
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var mutationObserver = new MutationObserver(
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mutationCallback(2, orderedEquals([div1, div2])));
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mutationObserver.observe(container, childList: true);
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container.append(div1);
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container.append(div2);
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}, expectation);
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});
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test('direct-nested options-named', () {
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expect(() {
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var container = new DivElement();
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keepAlive.add(container);
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var div1 = new DivElement();
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var div2 = new DivElement();
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var mutationObserver =
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new MutationObserver(mutationCallback(1, orderedEquals([div1])));
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mutationObserver.observe(container, childList: true);
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container.append(div1);
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div1.append(div2);
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}, expectation);
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});
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test('subtree options-named', () {
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expect(() {
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var container = new DivElement();
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keepAlive.add(container);
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var div1 = new DivElement();
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var div2 = new DivElement();
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var mutationObserver = new MutationObserver(
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mutationCallback(2, orderedEquals([div1, div2])));
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mutationObserver.observe(container, childList: true, subtree: true);
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container.append(div1);
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div1.append(div2);
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}, expectation);
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});
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});
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}
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