| <!DOCTYPE HTML> |
| <html> |
| <head> |
| <meta charset="utf-8"> |
| <title>This test validates that setResourceTimingBufferFull behaves appropriately when set to the current buffer level.</title> |
| <link rel="author" title="Google" href="http://www.google.com/" /> |
| <link rel="help" href="https://www.w3.org/TR/resource-timing-2/#dom-performance-onresourcetimingbufferfull"> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script src="resources/resource-loaders.js"></script> |
| <script src="resources/buffer-full-utilities.js"></script> |
| </head> |
| <body> |
| <script> |
| promise_test(async () => { |
| let result = ''; |
| performance.addEventListener('resourcetimingbufferfull', () => { |
| result += 'Event Fired with ' + |
| performance.getEntriesByType('resource').length + ' entries.'; |
| performance.clearResourceTimings(); |
| }); |
| result += 'Before adding entries. '; |
| await fillUpTheBufferWithTwoResources(); |
| result += 'After adding entries. '; |
| load.script(scriptResources[2]); |
| await bufferFullFirePromise; |
| assert_equals(result, 'Before adding entries. After adding entries. Event Fired with 2 entries.'); |
| const entries = performance.getEntriesByType('resource'); |
| assert_equals(entries.length, 1, |
| 'Number of entries in resource timing buffer is unexpected'); |
| assert_true(entries[0].name.includes(scriptResources[2]), |
| 'The entry must correspond to the last resource loaded.') |
| }, "Test that adding entries and firing the buffer full event happen in the right order."); |
| </script> |