More ChromeVox tests

chrome/browser/resources/chromeos/chromevox/common/cursor_selection_test.js

+// Copyright 2013 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(['../testing/chromevox_unittest_base.js']);
+
+/**
+ * Test fixture.
+ * @constructor
+ * @extends {ChromeVoxUnitTestBase}
+ */
+function CvoxCursorSelectionUnitTest() {}
+
+CvoxCursorSelectionUnitTest.prototype = {
+  __proto__: ChromeVoxUnitTestBase.prototype,
+
+  /** @override */
+  closureModuleDeps: [
+    'cvox.CursorSelection'
+  ]
+};
+
+TEST_F('CvoxCursorSelectionUnitTest', 'Reverse', function() {
+  this.loadDoc(function() {/*!
+     <div>
+       <p id="a">a</p>
+       <p id="b">b</p>
+     </div>
+  */});
+  var a = new cvox.Cursor($('a'), 0, '');
+  var b = new cvox.Cursor($('b'), 0, '');
+
+  var aa = new cvox.CursorSelection(a, a);
+  assertEquals(false, aa.isReversed());
+  aa.setReversed(true);
+  assertEquals(true, aa.isReversed());
+
+  var ab = new cvox.CursorSelection(a, b);
+  assertEquals(false, ab.isReversed());
+  ab.setReversed(true);
+  assertEquals(true, ab.isReversed());
+  assertEquals(true, ab.start.equals(b));
+  assertEquals(true, ab.end.equals(a));
+  ab.setReversed(false);
+  assertEquals(false, ab.isReversed());
+  assertEquals(true, ab.start.equals(a));
+  assertEquals(true, ab.end.equals(b));
+
+  ab = new cvox.CursorSelection(b, a);
+  assertEquals(false, ab.isReversed());
+  assertEquals(true, ab.start.equals(a));
+  assertEquals(true, ab.end.equals(b));
+
+  var ba = new cvox.CursorSelection(b, a, true);
+  assertEquals(true, ba.isReversed());
+  assertEquals(true, ba.start.equals(b));
+  assertEquals(true, ba.end.equals(a));
+
+  ba = new cvox.CursorSelection(a, b, true);
+  assertEquals(true, ba.isReversed());
+  assertEquals(true, ba.start.equals(b));
+  assertEquals(true, ba.end.equals(a));
+});
+
+
+/** Tests correctness of collapsing selections.  */
+TEST_F('CvoxCursorSelectionUnitTest', 'Collapse', function() {
+  this.loadDoc(function() {/*!
+    <p id='1'>This is a test.</p>
+  */});
+  var text = $('1').firstChild;
+  var a = new cvox.Cursor(text, 0, 'This is a test.');
+  var b = new cvox.Cursor(text, 13, 'This is a test.');
+  var c = new cvox.Cursor(text, 5, 'This is a test.');
+  var d = new cvox.Cursor(text, 8, 'This is a test.');
+
+  var aa = new cvox.CursorSelection(a, a).collapse();
+  assertEquals(0, aa.start.index);
+  assertEquals(0, aa.end.index);
+
+  var ab = new cvox.CursorSelection(a, b).collapse();
+  assertEquals(0, ab.start.index);
+  assertEquals(1, ab.end.index);
+
+  var ba = new cvox.CursorSelection(b, a, true).collapse();
+  assertEquals(12, ba.absStart().index);
+  assertEquals(13, ba.absEnd().index);
+
+  var cd = new cvox.CursorSelection(c, d).collapse();
+  assertEquals(5, cd.start.index);
+  assertEquals(6, cd.end.index);
+
+  var dc = new cvox.CursorSelection(d, c, true).collapse();
+  assertEquals(7, dc.absStart().index);
+  assertEquals(8, dc.absEnd().index);
+});