XMPP implementation in JavaScript.

remoting/webapp/unittests/base_unittest.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.
 
 (function() {
 
 'use strict';
 
 module('base');
 
@@ skipping 214 matching lines @@
     });
 
     source.addEventListener('foo', sink.listener);
     source.raiseEvent('foo');
     sinon.assert.calledOnce(sink.listener);
 
     source.raiseEvent('foo');
     sinon.assert.calledOnce(sink.listener);
 });
 
+test('encodeUtf8() can encode UTF8 strings', function() {
+  function toJsArray(arrayBuffer) {
+    var result = [];
+    var array = new Uint8Array(arrayBuffer);
+    for (var i = 0; i < array.length; ++i) {
+      result.push(array[i]);
+    }
+    return result;
+  }
+
+  // ASCII.
+  QUnit.deepEqual(toJsArray(base.encodeUtf8("ABC")), [0x41, 0x42, 0x43]);
+
+  // Some arbitrary characters from the basic Unicode plane.
+  QUnit.deepEqual(toJsArray(base.encodeUtf8("挂Ѓф")),
+                  [0xE6, 0x8C, 0x82, 0xD0, 0x83, 209, 132]);

[Jamie, 2014/08/29 02:14:08]

Why not hex for the last two? Also, it might be worth splitting the array to
show how the encoding separates; perhaps a double-space or a new line between
the characters?

[Sergey Ulanov, 2014/08/29 23:40:28]

Done.

+
+  // Unicode surrogate pair for U+1F603.
+  QUnit.deepEqual(toJsArray(base.encodeUtf8("😃")),

[Jamie, 2014/08/29 02:14:08]

I always felt we needed more smiley faces in our source code :)

[Sergey Ulanov, 2014/08/29 23:40:28]

Acknowledged.

+                  [0xF0, 0x9F, 0x98, 0x83]);
+});
+
+test('decodeUtf8() can decode UTF8 strings', function() {
+  // ASCII.
+  QUnit.equal(base.decodeUtf8(new Uint8Array([0x41, 0x42, 0x43]).buffer),
+              "ABC");
+
+  // Some arbitrary characters from the basic Unicode plane.
+  QUnit.equal(
+      base.decodeUtf8(
+          new Uint8Array([0xE6, 0x8C, 0x82, 0xD0, 0x83, 209, 132]).buffer),
+      "挂Ѓф");
+
+  // Unicode surrogate pair for U+1F603.
+  QUnit.equal(base.decodeUtf8(new Uint8Array([0xF0, 0x9F, 0x98, 0x83]).buffer),
+              "😃");
+});
+
 })();