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|---|
| (Empty) | |
| 1 <!DOCTYPE html> |
| 2 <script src="../../resources/testharness.js"></script> |
| 3 <script src="../../resources/testharnessreport.js"></script> |
| 4 <script> |
| 5 |
| 6 async_test(function (t) { |
| 7 var observer = new PerformanceObserver( |
| 8 t.step_func(function (entryList) { |
| 9 var entries = entryList.getEntries(); |
| 10 /* TODO(panicker): Update after fixing http://crbug.com/651461 */ |
| 11 for (var i = 0; i < entries.length; i++) { |
| 12 assert_equals(entries[i].entryType, "longtask", |
| 13 "entryType expected to be: longtask"); |
| 14 assert_equals(entries[i].name, "same-origin", |
| 15 "name expected to be: same-origin"); |
| 16 assert_greater_than(entries[i].duration, 50000, |
| 17 "duration expected to be greater than 50ms threshold"); |
| 18 } |
| 19 observer.disconnect(); |
| 20 t.done(); |
| 21 }) |
| 22 ); |
| 23 observer.observe({entryTypes: ["longtask"]}); |
| 24 |
| 25 /* Generate a slow task */ |
| 26 var begin = window.performance.now(); |
| 27 while (window.performance.now() < begin + 51); |
| 28 |
| 29 }, "Performance longtask entries are observable"); |
| 30 |
| 31 </script> |
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Chromium Code Reviews
Issue 2422433002:
Add a layout test for longtask timing (Closed)
