1<!DOCTYPE html>
2<html>
3<head>
4<meta charset="utf-8" />
5<title>functionality test of window.performance.clearMeasures</title>
6<link rel="author" title="Intel" href="http://www.intel.com/" />
7<link rel="help" href="http://www.w3.org/TR/user-timing/#extensions-performance-interface"/>
8<script src="/resources/testharness.js"></script>
9<script src="/resources/testharnessreport.js"></script>
10<script src="/common/performance-timeline-utils.js"></script>
11<script src="resources/webperftestharness.js"></script>
12<script src="resources/webperftestharnessextension.js"></script>
13<script>
14setup({ explicit_done: true });
15
16function onload_test()
17{
18    const context = new PerformanceContext(window.performance);
19    const entrylist_checker = new performance_entrylist_checker('measure');
20    const measure_names = measures.map(function(x) {return x[0];});
21
22    mark_names.forEach(function(name) {
23        context.mark(name);
24    });
25    measures.forEach(context.initialMeasures, context);
26    for (let i = 0; i < measures.length; ++i)
27    {
28        context.clearMeasures(measures[i][0]);
29        const retained_entries = context.getEntriesByType('measure');
30        const non_retained_entries = context.getEntriesByName(measures[i][0], 'measure');
31        entrylist_checker.entrylist_check(retained_entries, measures.length - i - 1, measure_names,
32            'First loop: checking entries after removing "' + measures[i][0] + '". ');
33        test_equals(non_retained_entries.length, 0,
34            'First loop: measure "' + measures[i][0] + '" should not exist anymore after we cleared it.');
35    }
36
37    measures.forEach(context.initialMeasures, context);
38    context.clearMeasures();
39    test_equals(context.getEntriesByType('measure').length, 0, 'No measures should exist after we clear all (after first loop).');
40
41    // Following cases test clear existed measure name that is tied twice.
42    measures.forEach(context.initialMeasures, context);
43    mark_names.forEach(function(name) {
44        context.mark(name);
45    });
46    measures.forEach(context.initialMeasures, context);
47    for (let i = 0; i < measures.length; ++i)
48    {
49        context.clearMeasures(measures[i][0]);
50        const retained_entries = context.getEntriesByType('measure');
51        const non_retained_entries = context.getEntriesByName(measures[i][0], 'measure');
52        entrylist_checker.entrylist_check(retained_entries, (measures.length - i - 1) * 2, measure_names,
53            'Second loop: checking entries after removing "' + measures[i][0] + '". ');
54        test_equals(non_retained_entries.length, 0,
55            'Second loop: measure "' + measures[i][0] +'" should not exist anymore after we cleared it.');
56    }
57
58    // Following cases test clear functionality when measure names are tied twice.
59    measures.forEach(context.initialMeasures, context);
60    measures.forEach(context.initialMeasures, context);
61    const entry_number_before_useless_clear = context.getEntriesByType('measure').length;
62    context.clearMeasures('NonExist');
63    const entry_number_after_useless_clear = context.getEntriesByType('measure').length;
64    test_equals(entry_number_before_useless_clear, entry_number_after_useless_clear, 'Nothing should happen if we clear a non-exist measure');
65    context.clearMeasures();
66    test_equals(context.getEntriesByType('measure').length, 0, 'No measures should exist when we clear all (after second loop).');
67
68    done();
69}
70</script>
71</head>
72<body onload=onload_test()>
73    <h1>Description</h1>
74    <p>This test validates functionality of the interface window.performance.clearMeasures.</p>
75    <div id="log"></div>
76</body>
77</html>
78