| <!DOCTYPE html> |
| <!-- |
| Copyright (c) 2015 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. |
| --> |
| |
| <link rel="import" href="/tracing/extras/chrome/layout_object.html"> |
| |
| <script> |
| 'use strict'; |
| |
| tr.b.unittest.testSuite(function() { |
| function FakeSnapshot() { |
| this.layoutObjectsById = {}; |
| } |
| FakeSnapshot.prototype = { |
| getLayoutObjectById: function(id) { |
| return this.layoutObjectsById[id]; |
| } |
| }; |
| |
| test('instantiate', function() { |
| var snapshot = new FakeSnapshot(); |
| var layoutObject = new tr.e.chrome.LayoutObject(snapshot, { |
| address: 'deadbeef', |
| name: 'LayoutView', |
| other: 1, |
| children: [ |
| { |
| address: 'beef2', |
| name: 'LayoutBlockFlow', |
| other: 2 |
| } |
| ] |
| }); |
| snapshot.layoutObjectsById[layoutObject.id] = layoutObject; |
| |
| assert.strictEqual(snapshot, layoutObject.snapshot); |
| assert.equal('LayoutView', layoutObject.name); |
| assert.equal('deadbeef', layoutObject.id); |
| assert.equal(1, layoutObject.otherPropertyNames.length); |
| assert.equal(1, layoutObject.getProperty('other')); |
| assert.isTrue(layoutObject.hasChildLayoutObjects); |
| var child = layoutObject.childLayoutObjects[0]; |
| assert.equal('LayoutBlockFlow', child.name); |
| assert.equal('beef2', child.id); |
| assert.equal(1, child.otherPropertyNames.length); |
| assert.equal(2, child.getProperty('other')); |
| |
| assert.isUndefined(layoutObject.previousSnapshotLayoutObject); |
| assert.isUndefined(layoutObject.nextSnapshotLayoutObject); |
| |
| var count = 0; |
| layoutObject.traverseTree(function(node) { |
| count += 1; |
| }); |
| assert.equal(2, count); |
| |
| var nextSnapshot = new FakeSnapshot(); |
| nextSnapshot.previousSnapshot = snapshot; |
| snapshot.nextSnapshot = nextSnapshot; |
| |
| var nextLayoutObject = new tr.e.chrome.LayoutObject(nextSnapshot, { |
| address: 'deadbeef', |
| name: 'LayoutView' |
| }); |
| nextSnapshot.layoutObjectsById[nextLayoutObject.id] = nextLayoutObject; |
| |
| assert.strictEqual(layoutObject, |
| nextLayoutObject.previousSnapshotLayoutObject); |
| assert.strictEqual(nextLayoutObject, layoutObject.nextSnapshotLayoutObject); |
| assert.isUndefined(layoutObject.previousSnapshotLayoutObject); |
| assert.isUndefined(nextLayoutObject.nextSnapshotLayoutObject); |
| }); |
| }); |
| </script> |
