<!doctype html>
<meta charset=utf-8>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="../testcommon.js"></script>
<body>
<div id="log"></div>
<script>
'use strict';

// We clamp +infinity or -inifinity value in floating point to
// maximum floating point value or -maximum floating point value.
const MAX_FLOAT = 3.40282e+38;

test(function(t) {
  var div = addDiv(t);
  div.style = "width: 1px; height: 1px;";
  var anim = div.animate([ { transform: 'scale(1)' },
                           { transform: 'scale(3.5e+38)'},
                           { transform: 'scale(3)' } ], 100 * MS_PER_SEC);

  anim.pause();
  anim.currentTime = 50 * MS_PER_SEC;
  assert_equals(getComputedStyle(div).transform,
                'matrix(' + MAX_FLOAT + ', 0, 0, ' + MAX_FLOAT + ', 0, 0)');
}, 'Test that the parameter of transform scale is clamped' );

test(function(t) {
  var div = addDiv(t);
  div.style = "width: 1px; height: 1px;";
  var anim = div.animate([ { transform: 'translate(1px)' },
                           { transform: 'translate(3.5e+38px)'},
                           { transform: 'translate(3px)' } ], 100 * MS_PER_SEC);

  anim.pause();
  anim.currentTime = 50 * MS_PER_SEC;
  assert_equals(getComputedStyle(div).transform,
                'matrix(1, 0, 0, 1, ' + MAX_FLOAT + ', 0)');
}, 'Test that the parameter of transform translate is clamped' );

test(function(t) {
  var div = addDiv(t);
  div.style = "width: 1px; height: 1px;";
  var anim = div.animate([ { transform: 'matrix(0.5, 0, 0, 0.5, 0, 0)' },
                           { transform: 'matrix(2, 0, 0, 2, 3.5e+38, 0)'},
                           { transform: 'matrix(0, 2, 0, -2, 0, 0)' } ],
                         100 * MS_PER_SEC);

  anim.pause();
  anim.currentTime = 50 * MS_PER_SEC;
  assert_equals(getComputedStyle(div).transform,
                'matrix(2, 0, 0, 2, ' + MAX_FLOAT + ', 0)');
}, 'Test that the parameter of transform matrix is clamped' );

</script>
</body>
