src/third_party/trace-viewer/trace_viewer/tracing/trace_model/object_snapshot_test.js

   1 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 'use strict';
   6
   7 tvcm.require('tracing.trace_model.object_instance');
   8 tvcm.require('tracing.trace_model.object_snapshot');
   9
  10 tvcm.unittest.testSuite('tracing.trace_model.object_snapshot_test', function() {
  11   test('snapshotTypeRegistry', function() {
  12     function MySnapshot() {
  13       tracing.trace_model.ObjectSnapshot.apply(this, arguments);
  14       this.myFoo = this.args.foo;
  15     }
  16
  17     MySnapshot.prototype = {
  18       __proto__: tracing.trace_model.ObjectSnapshot.prototype
  19     };
  20
  21     var instance = new tracing.trace_model.ObjectInstance(
  22         {}, '0x1000', 'cat', 'MySnapshot', 10);
  23     try {
  24       tracing.trace_model.ObjectSnapshot.register('MySnapshot', MySnapshot);
  25       var snapshot = instance.addSnapshot(15, {foo: 'bar'});
  26       assertTrue(snapshot instanceof MySnapshot);
  27       assertEquals('bar', snapshot.myFoo);
  28     } finally {
  29       tracing.trace_model.ObjectSnapshot.unregister('MySnapshot');
  30     }
  31   });
  32 });