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<!doctype html>
<meta charset=utf-8>
<script src='/resources/testharness.js'></script>
<script src='/resources/testharnessreport.js'></script>
<script src='../testcommon.js'></script>
<div id='log'></div>
<script type='text/javascript'>
'use strict';
test(function(t) {
var target = addDiv(t);
target.style.transform = 'translateX(100px)';
target.style.transition = 'all 10s linear -5s';
getComputedStyle(target).transform;
target.style.transform = 'rotate(90deg)';
var interpolated_matrix = 'matrix(' + Math.cos(Math.PI / 4) + ',' +
Math.sin(Math.PI / 4) + ',' +
-Math.sin(Math.PI / 4) + ',' +
Math.cos(Math.PI / 4) + ',' +
'50, 0)';
assert_matrix_equals(getComputedStyle(target).transform,
interpolated_matrix,
'the equivalent matrix of ' + 'interpolatematrix(' +
'translateX(100px), rotate(90deg), 0.5)');
// Trigger a new transition from
// interpolatematrix(translateX(100px), rotate(90deg), 0.5) to none
// with 'all 10s linear -5s'.
target.style.transform = 'none';
interpolated_matrix = 'matrix(' + Math.cos(Math.PI / 8) + ',' +
Math.sin(Math.PI / 8) + ',' +
-Math.sin(Math.PI / 8) + ',' +
Math.cos(Math.PI / 8) + ',' +
'25, 0)';
assert_matrix_equals(getComputedStyle(target).transform,
interpolated_matrix,
'the expected matrix from interpolatematrix(' +
'translateX(100px), rotate(90deg), 0.5) to none at 50%');
}, 'Test interpolation from interpolatematrix to none at 50%');
</script>
</html>
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