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+<!DOCTYPE html>
+<html>
+<head>
+<meta charset="utf-8" />
+<title>functionality test of window.performance.measure</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];});
+
+    test_equals(context.getEntriesByType('measure').length, 0, 'There should be ' + 0 + ' entries returned.');
+
+    mark_names.forEach(function(name) {
+        context.mark(name);
+    });
+    measures.forEach(context.initialMeasures, context);
+
+    let measure_entrylist = context.getEntriesByType('measure');
+    entrylist_checker.entrylist_check(measure_entrylist, measures.length, measure_names,
+        'Checking all entries.');
+
+    for (let i = 0; i < measure_entrylist.length; ++i)
+    {
+        const measure_entrylist_by_name = context.getEntriesByName(measure_entrylist[i].name, 'measure');
+        entrylist_checker.entrylist_check(measure_entrylist_by_name, 1, measure_names,
+            'First loop: checking entry of name "' + measure_entrylist[i].name + '".');
+    }
+
+    // Following cases test for scenarios that measure names are tied for two times
+    mark_names.forEach(function(name) {
+        context.mark(name);
+    });
+    measures.forEach(context.initialMeasures, context);
+
+    measure_entrylist = context.getEntriesByType('measure');
+    entrylist_checker.entrylist_check(measure_entrylist, measures.length * 2, measure_names,
+        'Checking all doubly measured entries.');
+
+    for (let i = 0; i < measure_entrylist.length; ++i)
+    {
+        const measure_entrylist_by_name = context.getEntriesByName(measure_entrylist[i].name, 'measure');
+        entrylist_checker.entrylist_check(measure_entrylist_by_name, 2, measure_names,
+            'Second loop step ' + i + ': checking entry of name "' + measure_entrylist[i].name + '".');
+    }
+
+    done();
+}
+</script>
+</head>
+<body onload=onload_test()>
+    <h1>Description</h1>
+    <p>This test validates functionality of the interface window.performance.measure.</p>
+    <div id="log"></div>
+</body>
+</html>