Migrate walker tests from upstream ChromeVox.

chrome/browser/resources/chromeos/chromevox/walkers/table_walker_test.unitjs

+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Include test fixture.
+GEN_INCLUDE(['walker_unittest_base.js']);
+
+/**
+ * Test fixture.
+ * @constructor
+ * @extends {CvoxWalkerTestBase}
+ */
+function CvoxTableWalkerUnitTest() {}
+
+CvoxTableWalkerUnitTest.prototype = {
+  __proto__: CvoxWalkerUnitTestBase.prototype,
+
+  /** @override */
+  closureModuleDeps: CvoxWalkerUnitTestBase.prototype.closureModuleDeps.concat(
+      'cvox.TableWalker'),
+
+  /** @override */
+  newWalker: function() {
+    return new cvox.TableWalker();
+  }
+
+};
+
+// NOTE: The common walker tests don't work for the table walker, so they are
+// not added here.
+
+/**
+ * Simple tests for TableWalker
+ */
+TEST_F('CvoxTableWalkerUnitTest', 'testSimpleTableWalker', function() {
+  this.loadDoc(function() {/*!
+    <p id="before">Before</p>
+    <table id="table">
+      <tr><td>A</td><td>1</td></tr>
+      <tr><td>B</td><td>2</td></tr>
+    </table>
+   */});
+  var node = document.getElementById('table');
+  var sel = cvox.CursorSelection.fromNode(node);
+  var ret = this.go(sel, 'sync', {descText: 'A'});
+});
+
+/**
+ * Test navigating rows.
+ */
+TEST_F('CvoxTableWalkerUnitTest', 'testNavigateRows', function() {
+  this.loadDoc(function() {/*!
+    <table id="table">
+      <tr><td>A</td><td>1</td></tr>
+      <tr><td>B</td><td>2</td></tr>
+    </table>
+   */});
+  var node = document.getElementById('table');
+  var sel = cvox.CursorSelection.fromNode(node);
+  var ret = this.go(sel, 'sync', {descText: 'A'});
+  ret = this.go(ret, 'nextRow', {descText: 'B'});
+  this.go(ret, 'nextRow', null);
+  ret.setReversed(true);
+  ret = this.go(ret, 'nextRow', {descText: 'A'});
+  this.go(ret, 'nextRow', null);
+});
+
+/**
+ * Test navigating columns.
+ */
+TEST_F('CvoxTableWalkerUnitTest', 'testNavigateCols', function() {
+  this.loadDoc(function() {/*!
+    <table id="table">
+      <tr><td>A</td><td>1</td></tr>
+      <tr><td>B</td><td>2</td></tr>
+    </table>
+   */});
+  var node = document.getElementById('table');
+  var sel = cvox.CursorSelection.fromNode(node);
+  var ret = this.go(sel, 'sync', {descText: 'A'});
+  ret = this.go(ret, 'nextCol', {descText: '1'});
+  this.go(ret, 'nextCol', null);
+  ret.setReversed(true);
+  ret = this.go(ret, 'nextCol', {descText: 'A'});
+  this.go(ret, 'nextCol', null);
+});