Implement word wrapping and panning in multiline Braille.

chrome/browser/resources/chromeos/chromevox/testing/assert_additions.js

 // 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.
 
 /**
  * Asserts that a given argument's value is undefined.
  * @param {object} a The argument to check.
  */
 function assertUndefined(a) {
   if (a !== undefined) {
@@ skipping 62 matching lines @@
  * @param {string=} opt_message Message used for errors.
  */
 function assertEqualsJSON(expected, actual, opt_message) {
   if (JSON.stringify(actual) !== JSON.stringify(expected)) {
     throw new Error((opt_message ? opt_message + '\n' : '') +
         'Expected ' + JSON.stringify(expected) + '\n' +
         'Got      ' + JSON.stringify(actual));
   }
 }
 
+/**
+ * Asserts that two ArrayBuffers have the same content.
+ * @param {ArrayBuffer} arrayBufA The expected ArrayBuffer.
+ * @param {ArrayBuffer} arrayBufB The test ArrayBuffer.
+ */
+function assertArrayBuffersEquals(arrayBufA, arrayBufB) {
+  var view1 = new Uint8Array(arrayBufA);
+  var view2 = new Uint8Array(arrayBufB);
+  assertEquals(JSON.stringify(view1), JSON.stringify(view2));
+}
+
+/**
+ * Asserts that two Arrays have the same content.
+ * @param {ArrayBuffer} arrayA The expected array.
+ * @param {ArrayBuffer} arrayB The test array.
+ */
+function assertArraysEquals(arrayA, arrayB) {
+  assertEquals(JSON.stringify(arrayA), JSON.stringify(arrayB));
+}
+
 assertSame = assertEquals;
 assertNotSame = assertNotEquals;