clearMeasures.html

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This WPT test may be referenced by the following Test IDs:
- /user-timing/clearMeasures.html - WPT Dashboard Interop Dashboard

<!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>