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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>CSS Transitions Test: behavior when transition parameters change while transitioning</title>
<meta name="assert" content="Test checks that all transitions run properly when property or duration is changed mid-run">
<link rel="help" title="3. Starting of transitions" href="http://www.w3.org/TR/css3-transitions/#starting">
<link rel="author" title="Rodney Rehm" href="http://rodneyrehm.de/en/">
<meta name="flags" content="dom">
<script src="/resources/testharness.js" type="text/javascript"></script>
<script src="/resources/testharnessreport.js" type="text/javascript"></script>
<script src="./support/vendorPrefix.js" type="text/javascript"></script>
<script src="./support/helper.js" type="text/javascript"></script>
<script src="./support/runParallelAsyncHarness.js" type="text/javascript"></script>
<script src="./support/generalParallelTest.js" type="text/javascript"></script>
<style type="text/css">
#offscreen {
position: absolute;
top: -100000px;
left: -100000px;
width: 100000px;
height: 100000px;
}
</style>
</head>
<body>
<!-- required by testharnessreport.js -->
<div id="log"></div>
<!-- elements used for testing -->
<div id="fixture" class="fixture">
<div class="container">
<div class="transition">Text sample</div>
</div>
</div>
<div id="offscreen"></div>
<!--
SEE ./support/README.md for an abstract explanation of the test procedure
http://test.csswg.org/source/contributors/rodneyrehm/submitted/css3-transitions/README.md
-->
<script>
// this test takes its time, give it a minute to run
var timeout = 60000;
setup({timeout: timeout});
var tests = [
{
name: "changing transition-duration",
property: 'padding-left',
transitions: 'padding-left .5s linear 0s',
from: {'padding-left': '1px'},
to: {'padding-left': '10px'},
then: {
'transition-duration': '0.1s'
},
expect: [
'padding-left:0.5s'
]
},
{
name: "changing transition-property",
property: 'padding-left',
transitions: 'padding-left .5s linear 0s',
from: {'padding-left': '1px'},
to: {'padding-left': '10px'},
then: {
'transition-property': 'margin-left'
},
expect: [
''
]
}
];
// general transition-duration
var duration = '0.5s';
runParallelAsyncHarness({
// array of test data
tests: tests,
// the number of tests to run in parallel
testsPerSlice: 50,
// milliseconds to wait before calling teardown and ending test
duration: parseFloat(duration) * 1000,
// prepare individual test
setup: function(data, options) {
var styles = {
'.fixture': {},
'.container': {},
'.container.to': {},
'.container.how': {},
'.transition': data.from,
'.transition.to' : data.to,
'.transition.how' : {transition: data.transitions},
'.transition.then' : data.then
};
generalParallelTest.setup(data, options);
generalParallelTest.addStyles(data, options, styles);
},
// cleanup after individual test
teardown: generalParallelTest.teardown,
// invoked prior to running a slice of tests
sliceStart: generalParallelTest.sliceStart,
// invoked after running a slice of tests
sliceDone: generalParallelTest.sliceDone,
// test cases, make them as granular as possible
cases: {
// test property values while transitioning
// values.start kicks off a transition
'values': {
// run actual test, assertions can be used here!
start: function(test, data, options) {
// identify initial and target values
generalParallelTest.getStyle(data);
// kick off the transition
generalParallelTest.startTransition(data);
setTimeout(function() {
data.transition.node.classList.add('then');
for (var property in data.then) {
var current = data.transition.computedStyle(property);
assert_equals(current, data.then[property], 'value of ' + property + ' changed');
}
}, 50);
},
done: function(test, data, options) {
// make sure we got the event for the tested property only
test.step(generalParallelTest.assertExpectedEventsFunc(data, 'transition', data.expect));
}
}
},
// called once all tests are done
done: generalParallelTest.done
});
</script>
</body>
</html>
|
