src/third_party/trace-viewer/src/cc/layer_tree_quad_stack_view_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('cc');
   8 tvcm.require('cc.layer_tree_quad_stack_view');
   9 tvcm.require('tracing.importer.trace_event_importer');
  10 tvcm.require('tracing.trace_model');
  11 tvcm.requireRawScript('cc/layer_tree_host_impl_test_data.js');
  12
  13 tvcm.unittest.testSuite('cc.layer_tree_quad_stack_view_test', function() {
  14   test('tileCoverageRectCount', function() {
  15     var m = new tracing.TraceModel(g_catLTHIEvents);
  16     var p = m.processes[1];
  17
  18     var instance = p.objects.getAllInstancesNamed('cc::LayerTreeHostImpl')[0];
  19     var lthi = instance.snapshots[0];
  20     var numLayers = lthi.activeTree.renderSurfaceLayerList.length;
  21     var layer = lthi.activeTree.renderSurfaceLayerList[numLayers - 1];
  22
  23     var view = new cc.LayerTreeQuadStackView();
  24     view.layerTreeImpl = lthi.activeTree;
  25     view.selection = new cc.LayerSelection(layer);
  26     view.howToShowTiles = 'none';
  27     view.showInvalidations = false;
  28     view.showContents = false;
  29     view.showOtherLAyers = false;
  30
  31     // There should be some quads drawn with all "show" checkboxes off,
  32     // but that number can change with new features added.
  33     var aQuads = view.generateLayerQuads();
  34     view.howToShowTiles = 'coverage';
  35     var bQuads = view.generateLayerQuads();
  36     var numCoverageRects = bQuads.length - aQuads.length;
  37
  38     // We know we have 5 coverage rects in lthi cats.
  39     assertEquals(5, numCoverageRects);
  40   });
  41 });