1 // Copyright 2014 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
5 GEN_INCLUDE(['assert_additions.js']);
6 GEN_INCLUDE(['common.js',
7 'callback_helper.js']);
10 * Base test fixture for ChromeVox unit tests.
12 * Note that while conceptually these are unit tests, these tests need
13 * to run in a full web page, so they're actually run as WebUI browser
17 * @extends {testing.Test}
19 function ChromeVoxUnitTestBase() {
21 this.callbackHelper_ = new CallbackHelper(this);
25 ChromeVoxUnitTestBase.prototype = {
26 __proto__: testing.Test.prototype,
30 'cvox.ChromeVoxTester',
31 'cvox.ChromeVoxUserCommands',
32 'cvox.SpokenListBuilder',
36 browsePreload: DUMMY_URL,
40 * It doesn't make sense to run the accessibility audit on these tests,
41 * since many of them are deliberately testing inaccessible html.
43 runAccessibilityChecks: false,
46 * Loads some inlined html into the body of the current document, replacing
47 * whatever was there previously.
48 * @param {string} html The html to load as a string.
50 loadHtml: function(html) {
51 while (document.head.firstChild) {
52 document.head.removeChild(document.head.firstChild);
54 while (document.body.firstChild) {
55 document.body.removeChild(document.body.firstChild);
57 this.appendHtml(html);
61 * Loads some inlined html into the current document, replacing
62 * whatever was there previously. This version takes the html
63 * encoded as a comment inside a function, so you can use it like this:
65 * this.loadDoc(function() {/*!
66 * <p>Html goes here</p>
69 * @param {Function} commentEncodedHtml The html to load, embedded as a
70 * comment inside an anonymous function - see example, above.
72 loadDoc: function(commentEncodedHtml) {
74 TestUtils.extractHtmlFromCommentEncodedString(commentEncodedHtml);
79 * Appends some inlined html into the current document, at the end of
80 * the body element. Takes the html encoded as a comment inside a function,
81 * so you can use it like this:
83 * this.appendDoc(function() {/*!
84 * <p>Html goes here</p>
87 * @param {Function} commentEncodedHtml The html to load, embedded as a
88 * comment inside an anonymous function - see example, above.
90 appendDoc: function(commentEncodedHtml) {
92 TestUtils.extractHtmlFromCommentEncodedString(commentEncodedHtml);
93 this.appendHtml(html);
97 * Appends some inlined html into the current document, at the end of
99 * @param {string} html The html to load as a string.
101 appendHtml: function(html) {
102 var div = document.createElement('div');
103 div.innerHTML = html;
104 var fragment = document.createDocumentFragment();
105 while (div.firstChild) {
106 fragment.appendChild(div.firstChild);
108 document.body.appendChild(fragment);
112 * Waits for the queued events in ChromeVoxEventWatcher to be
113 * handled, then calls a callback function with provided arguments
114 * in the test case scope. Very useful for asserting the results of events.
116 * @param {function()} func A function to call when ChromeVox is ready.
117 * @param {*} var_args Additional arguments to pass through to the function.
118 * @return {ChromeVoxUnitTestBase} this.
120 waitForCalm: function(func, var_args) {
121 var calmArguments = Array.prototype.slice.call(arguments);
122 calmArguments.shift();
123 cvox.ChromeVoxEventWatcher.addReadyCallback(this.newCallback(function() {
124 func.apply(this, calmArguments);
126 return this; // for chaining.
130 * Asserts the TTS engine spoke a certain string. Clears the TTS buffer.
131 * @param {string} expectedText The expected text.
132 * @return {ChromeVoxUnitTestBase} this.
134 assertSpoken: function(expectedText) {
135 assertEquals(expectedText,
136 cvox.ChromeVoxTester.testTts().getUtterancesAsString());
137 cvox.ChromeVoxTester.clearUtterances();
138 return this; // for chaining.
142 * Asserts a list of utterances are in the correct queue mode.
143 * @param {cvox.SpokenListBuilder|Array} expectedList A list
144 * of [text, queueMode] tuples OR a SpokenListBuilder with the expected
146 * @return {ChromeVoxUnitTestBase} this.
148 assertSpokenList: function(expectedList) {
149 if (expectedList instanceof cvox.SpokenListBuilder) {
150 expectedList = expectedList.build();
153 var ulist = cvox.ChromeVoxTester.testTts().getUtteranceInfoList();
154 for (var i = 0; i < expectedList.length; i++) {
155 var text = expectedList[i][0];
156 var queueMode = expectedList[i][1];
157 this.assertSingleUtterance_(text, queueMode,
158 ulist[i].text, ulist[i].queueMode);
160 cvox.ChromeVoxTester.clearUtterances();
161 return this; // for chaining.
164 assertSingleUtterance_: function(
165 expectedText, expectedQueueMode, text, queueMode) {
166 assertEquals(expectedQueueMode, queueMode);
167 assertEquals(expectedText, text);
171 * Focuses an element.
172 * @param {string} id The id of the element to focus.
173 * @return {ChromeVoxUnitTestBase} this.
175 setFocus: function(id) {
177 return this; // for chaining.
181 * Executes a ChromeVox user command.
182 * @param {string} command The name of the command to run.
183 * @return {ChromeVoxUnitTestBase} this.
185 userCommand: function(command) {
186 cvox.ChromeVoxUserCommands.commands[command]();
187 return this; // for chaining.
191 * @return {cvox.SpokenListBuilder} A new builder.
193 spokenList: function() {
194 return new cvox.SpokenListBuilder();
198 * @type {CallbackHelper}
201 callbackHelper_: null,
204 * Creates a callback that optionally calls {@code opt_callback} when
205 * called. If this method is called one or more times, then
206 * {@code testDone()} will be called when all callbacks have been called.
207 * @param {Function=} opt_callback Wrapped callback that will have its this
208 * reference bound to the test fixture.
211 newCallback: function(opt_callback) {
212 assertNotEquals(null, this.callbackHelper_);
213 return this.callbackHelper_.wrap(opt_callback);