| <!DOCTYPE HTML> |
| <meta charset=utf-8> |
| <title>Reporting: Buffer size</title> |
| <link rel="author" title="Paul Meyer" href="paulmeyer@chromium.org"> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script src="/resources/testdriver.js"></script> |
| <script src="/resources/testdriver-vendor.js"></script> |
| <script> |
| // Test the buffer size (100) of ReportingObserver. |
| promise_test(async function(test) { |
| for (let i = 0; i != 110; ++i) |
| await test_driver.generate_test_report("" + i); |
| |
| let reports = await new Promise(resolve => { |
| let observer = new ReportingObserver(resolve, {buffered:true}); |
| observer.observe(); |
| }); |
| |
| // Only (the most recent) 100 reports should be observed, even though |
| // 110 were buffered. |
| assert_equals(reports.length, 100); |
| for (let i = 0; i != 100; ++i) { |
| assert_equals(reports[i].body.message, "" + (i + 10)); |
| } |
| }, "Buffer size"); |
| </script> |