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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title>functionality test of window.performance.clearMeasures</title>
<link rel="author" title="Intel" href="http://www.intel.com/" />
<link rel="help" href="http://www.w3.org/TR/user-timing/#extensions-performance-interface"/>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/common/performance-timeline-utils.js"></script>
<script src="resources/webperftestharness.js"></script>
<script src="resources/webperftestharnessextension.js"></script>
<script>
setup({ explicit_done: true });
function onload_test()
{
const context = new PerformanceContext(window.performance);
const entrylist_checker = new performance_entrylist_checker('measure');
const measure_names = measures.map(function(x) {return x[0];});
mark_names.forEach(function(name) {
context.mark(name);
});
measures.forEach(context.initialMeasures, context);
for (let i = 0; i < measures.length; ++i)
{
context.clearMeasures(measures[i][0]);
const retained_entries = context.getEntriesByType('measure');
const non_retained_entries = context.getEntriesByName(measures[i][0], 'measure');
entrylist_checker.entrylist_check(retained_entries, measures.length - i - 1, measure_names,
'First loop: checking entries after removing "' + measures[i][0] + '". ');
test_equals(non_retained_entries.length, 0,
'First loop: measure "' + measures[i][0] + '" should not exist anymore after we cleared it.');
}
measures.forEach(context.initialMeasures, context);
context.clearMeasures();
test_equals(context.getEntriesByType('measure').length, 0, 'No measures should exist after we clear all (after first loop).');
// Following cases test clear existed measure name that is tied twice.
measures.forEach(context.initialMeasures, context);
mark_names.forEach(function(name) {
context.mark(name);
});
measures.forEach(context.initialMeasures, context);
for (let i = 0; i < measures.length; ++i)
{
context.clearMeasures(measures[i][0]);
const retained_entries = context.getEntriesByType('measure');
const non_retained_entries = context.getEntriesByName(measures[i][0], 'measure');
entrylist_checker.entrylist_check(retained_entries, (measures.length - i - 1) * 2, measure_names,
'Second loop: checking entries after removing "' + measures[i][0] + '". ');
test_equals(non_retained_entries.length, 0,
'Second loop: measure "' + measures[i][0] +'" should not exist anymore after we cleared it.');
}
// Following cases test clear functionality when measure names are tied twice.
measures.forEach(context.initialMeasures, context);
measures.forEach(context.initialMeasures, context);
const entry_number_before_useless_clear = context.getEntriesByType('measure').length;
context.clearMeasures('NonExist');
const entry_number_after_useless_clear = context.getEntriesByType('measure').length;
test_equals(entry_number_before_useless_clear, entry_number_after_useless_clear, 'Nothing should happen if we clear a non-exist measure');
context.clearMeasures();
test_equals(context.getEntriesByType('measure').length, 0, 'No measures should exist when we clear all (after second loop).');
done();
}
</script>
</head>
<body onload=onload_test()>
<h1>Description</h1>
<p>This test validates functionality of the interface window.performance.clearMeasures.</p>
<div id="log"></div>
</body>
</html>
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