selection_test.html - Android社区 - https://www.androidos.net.cn/

<!DOCTYPE HTML>
<html>
<!--
Copyright (c) 2012 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.
-->
<head>
<title>Timeline selection tests</title>
<script src="base.js"></script>
<script>
  base.require('unittest');
  base.require('test_utils');
  base.require('model');
  base.require('selection');
  base.require('tracks.slice_track');
</script>
</head>
<body>
<script>
    'use strict';

    function testSelectionObject() {
      var model = new tracing.Model();
      var p1 = model.getOrCreateProcess(1);
      var t1 = p1.getOrCreateThread(1);
      t1.pushSlice(new tracing.model.ThreadSlice('', 'a', 0, 1, {}, 3));
      t1.pushSlice(new tracing.model.ThreadSlice('', 'a', 0, 5, {}, 1));

      var sel = new tracing.Selection();
      sel.addSlice({}, t1.slices[0]);

      assertEquals(1, sel.bounds.min);
      assertEquals(4, sel.bounds.max);
      assertEquals(t1.slices[0], sel[0].slice);

      sel.addSlice({}, t1.slices[1]);
      assertEquals(1, sel.bounds.min);
      assertEquals(6, sel.bounds.max);
      assertEquals(t1.slices[1], sel[1].slice);

      sel.clear();
      assertEquals(0, sel.length);
    }

    function testShiftedSelection() {
      var model = new tracing.Model();
      var p1 = model.getOrCreateProcess(1);
      var t1 = p1.getOrCreateThread(1);
      t1.pushSlice(new tracing.model.ThreadSlice('', 'a', 0, 1, {}, 3));
      t1.pushSlice(new tracing.model.ThreadSlice('', 'a', 0, 5, {}, 1));

      var track = new tracing.tracks.SliceTrack();
      track.slices = t1.slices;

      var sel = new tracing.Selection();
      sel.addSlice(track, t1.slices[0]);

      var shifted = sel.getShiftedSelection(1);
      assertEquals(1, shifted.length);
      assertEquals(t1.slices[1], shifted[0].slice);
    }
</script>
</body>
</html>