retrievability.html (1769B)
1 <!DOCTYPE html> 2 <html> 3 <meta charset=utf-8> 4 <title>Event Timing: make sure 'event' entries are not retrievable by performance.getEntries* APIs.</title> 5 <meta name="timeout" content="long"> 6 <button id='button'>Generate a 'click' event</button> 7 <script src=/resources/testharness.js></script> 8 <script src=/resources/testharnessreport.js></script> 9 <script src=/resources/testdriver.js></script> 10 <script src=/resources/testdriver-vendor.js></script> 11 12 <script src=resources/event-timing-test-utils.js></script> 13 14 <script> 15 function validateEntries() { 16 const entriesByName = performance.getEntriesByName('pointerdown', 'event'); 17 const entriesByType = performance.getEntriesByType('event'); 18 const allEntries = performance.getEntries(); 19 assert_equals(entriesByName.length, 0, 'Event Timing entry should not be retrievable by getEntriesByName'); 20 assert_equals(entriesByType.length, 0, 'Event Timing entry should not be retrievable by getEntriesByType'); 21 assert_equals(allEntries.filter(e => e.entryType === 'event').length, 0, 'Event Timing entry should not be retrievable by getEntries'); 22 } 23 24 /* Timeline: 25 Begin Busy Loop 26 Click 1 arrives 27 End Busy Loop 28 (Dispatch and Process Click 1 - buffered) 29 Onload Event Fires 30 Validate entries 31 */ 32 async_test(function(t) { 33 assert_implements(window.PerformanceEventTiming, 'Event Timing is not supported.'); 34 new PerformanceObserver(t.step_func(entryList => { 35 if (entryList.getEntriesByName('pointerdown').length > 0) { 36 validateEntries(); 37 t.done(); 38 } 39 })).observe({entryTypes: ['event']}); 40 clickAndBlockMain('button'); 41 }, "Event Timing: make sure event-timing entries are not retrievable by performance.getEntries*."); 42 43 </script> 44 </html>