Added partial unit tests for host_controller.js. More to come.

remoting/webapp/base/js/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';
 
-QUnit.module('base');
+var getRandomValuesStub = null;
+
+QUnit.module('base', {
+  afterEach: function() {
+    if (getRandomValuesStub) {
+      getRandomValuesStub.restore();
+      getRandomValuesStub = null;
+    }
+  }
+});
 
 QUnit.test('mix(dest, src) should copy properties from |src| to |dest|',
   function(assert) {
     var src = { a: 'a', b: 'b'};
     var dest = { c: 'c'};
 
     base.mix(dest, src);
     assert.deepEqual(dest, {a: 'a', b: 'b', c: 'c'});
 });
 
@@ skipping 173 matching lines @@
       assert.ok(false);
     }).then(function() {
       return base.Promise.negate(Promise.resolve());
     }).then(function() {
       assert.ok(false);
     }).catch(function() {
       assert.ok(true);
     });
 });
 
+QUnit.test('generateUuid generates a UUID', function(assert) {
+  getRandomValuesStub = sinon.stub(
+      window.crypto, 'getRandomValues', function(/** Uint16Array*/ out) {
+        for (var i = 0; i < out.length; i++) {
+          out[i] = i;
+        }
+      });
+  assert.equal(base.generateUuid(), '00000001-0002-0003-0004-000500060007');
+});
+
 QUnit.module('base.Deferred');
 
 QUnit.test('resolve() should fulfill the underlying promise.', function(assert){
   /** @returns {Promise} */
   function async() {
     var deferred = new base.Deferred();
     deferred.resolve('bar');
     return deferred.promise();
   }
 
@@ skipping 146 matching lines @@
                           /* Ѓ */ 0xD0, 0x83,
                           /* ф */ 0xD1, 0x84]).buffer),
       "挂Ѓф");
 
   // Unicode surrogate pair for U+1F603.
   assert.equal(base.decodeUtf8(new Uint8Array([0xF0, 0x9F, 0x98, 0x83]).buffer),
               "😃");
 });
 
 })();