third_party/WebKit/LayoutTests/fast/scroll-behavior/scroll-customization/scrollstate-basic.html

   1 <!DOCTYPE html>
   2 <html>
   3 <head>
   4 <meta charset="utf-8">
   5 <title>ScrollState constructor behaves correctly</title>
   6 <script src="../../../resources/testharness.js"></script>
   7 <script src="../../../resources/testharnessreport.js"></script>
   8 </head>
   9 <body>
  10 <script>
  11
  12 test(function() {
  13   assert_true('ScrollState' in window, "'ScrollState' in window");
  14 }, "These tests only work with scroll customization enabled.");
  15
  16 if ('ScrollState' in window) {
  17   test(function() {
  18     var scrollState = new ScrollState();
  19     assert_equals(scrollState.deltaX, 0);
  20     assert_equals(scrollState.deltaY, 0);
  21     assert_equals(scrollState.deltaGranularity, 0);
  22     assert_equals(scrollState.velocityX, 0);
  23     assert_equals(scrollState.velocityY, 0);
  24     assert_equals(scrollState.inInertialPhase, false);
  25     assert_equals(scrollState.isBeginning, false);
  26     assert_equals(scrollState.isEnding, false);
  27     assert_equals(scrollState.fromUserInput, false);
  28     assert_equals(scrollState.shouldPropagate, true);
  29   }, "Empty constructor behaves correctly.");
  30
  31   test(function() {
  32     var deltaX = 12.5;
  33     var deltaY = 14.9;
  34     var deltaGranularity = 148.3;
  35     var velocityX = 23.7;
  36     var velocityY = 2.5;
  37     var inInertialPhase = true;
  38     var isBeginning = true;
  39     var isEnding = true;
  40     var scrollState = new ScrollState(deltaX, deltaY, deltaGranularity, velocityX,
  41                                       velocityY, inInertialPhase, isBeginning, isEnding);
  42     assert_equals(scrollState.deltaX, deltaX);
  43     assert_equals(scrollState.deltaY, deltaY);
  44     assert_equals(scrollState.deltaGranularity, deltaGranularity);
  45     assert_equals(scrollState.velocityX, velocityX);
  46     assert_equals(scrollState.velocityY, velocityY);
  47     assert_equals(scrollState.inInertialPhase, inInertialPhase);
  48     assert_equals(scrollState.isBeginning, isBeginning);
  49     assert_equals(scrollState.isEnding, isEnding);
  50     assert_equals(scrollState.fromUserInput, false);
  51     assert_equals(scrollState.shouldPropagate, true);
  52   }, "Constructor behaves correctly.");
  53
  54   test(function() {
  55     var scrollState = new ScrollState();
  56     scrollState.fromUserInput = true;
  57     assert_equals(scrollState.fromUserInput, false);
  58   }, "fromUserInput is read only");
  59 }
  60 </script>
  61 </body>
  62 </html>