| <!DOCTYPE HTML> |
| <html> |
| <head onload> |
| <meta charset="utf-8" /> |
| <title>This test validates the behavior of read and clear operation in onresourcetimingbufferfull callback of resource timing.</title> |
| <link rel="author" title="Intel" href="http://www.intel.com/" /> |
| <link rel="help" href="http://www.w3.org/TR/resource-timing/#performanceresourcetiming"/> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script src="resources/webperftestharness.js"></script> |
| <script src="resources/webperftestharnessextension.js"></script> |
| </head> |
| <body onload=onload_test()> |
| <script> |
| const context = new PerformanceContext(performance); |
| const resource_timing_buffer_size = 1; |
| let global_buffer = []; |
| function store_and_clear() { |
| const entryList = context.getEntriesByType('resource'); |
| entryList.forEach(function (entry) { |
| global_buffer.push(entry); |
| }); |
| context.clearResourceTimings(); |
| } |
| context.registerResourceTimingBufferFullCallback(store_and_clear); |
| context.setResourceTimingBufferSize(resource_timing_buffer_size); |
| // Scripts appended in JS to ensure setResourceTimingBufferSize is called before. |
| function appendScript(src) { |
| const script = document.createElement('script'); |
| script.type = 'text/javascript'; |
| script.src = src; |
| document.body.appendChild(script); |
| } |
| appendScript('resources/empty.js'); |
| appendScript('resources/empty_script.js'); |
| appendScript('resources/resource_timing_test0.js'); |
| setup({ explicit_done: true }); |
| function onload_test() { |
| test_equals(context.getEntriesByType('resource').length, 0, 'No entry should be stored in resource timing buffer since its cleared once an item arrived.'); |
| // The entry for empty.js must not be in the global buffer, but all others should be. |
| test_equals(global_buffer.length, 6, '6 resource timing entries should be moved to global buffer.'); |
| const index = window.location.pathname.lastIndexOf('resource-timing'); |
| const pathname = window.location.pathname.substring(0, index); |
| let expected_entries = {}; |
| expected_entries[pathname + 'resources/testharness.js'] = 'script'; |
| expected_entries[pathname + 'resources/testharnessreport.js'] = 'script'; |
| expected_entries[pathname + 'resource-timing/resources/webperftestharness.js'] = 'script'; |
| expected_entries[pathname + 'resource-timing/resources/webperftestharnessextension.js'] = 'script'; |
| expected_entries[pathname + 'resource-timing/resources/empty_script.js'] = 'script'; |
| expected_entries[pathname + 'resource-timing/resources/resource_timing_test0.js'] = 'script'; |
| test_resource_entries(global_buffer, expected_entries); |
| done(); |
| } |
| </script> |
| </body> |
| </html> |
