| <!DOCTYPE html> |
| <html> |
| <body> |
| <script src="/resources/js-test-pre.js"></script> |
| <script> |
| |
| description('This tests clearing the resource timing buffer during a resourcetimingbufferfull event.<br>' |
| + 'WebKit should not hit a release assertion.'); |
| |
| function startTest() |
| { |
| performance.clearResourceTimings(); |
| shouldBe('performance.getEntriesByType("resource").length', '0'); |
| evalAndLog('performance.setResourceTimingBufferSize(2)'); |
| evalAndLog('fetchImages(3).then(checkInitialState)'); |
| } |
| |
| let resourceIndex = 0; |
| async function fetchImages(count) |
| { |
| for (let i = 0; i < count; i++, resourceIndex++) |
| await fetch(`../../resources/square100.png?resource=${resourceIndex}`); |
| } |
| |
| async function checkInitialState() |
| { |
| shouldBe('originalResources = performance.getEntriesByType("resource"); originalResources.length', '2'); |
| shouldBeEqualToString('originalResources[0].initiatorType', 'fetch'); |
| shouldBeEqualToString('new URL(originalResources[0].name).search', '?resource=0'); |
| shouldBeEqualToString('originalResources[1].initiatorType', 'fetch'); |
| shouldBeEqualToString('new URL(originalResources[1].name).search', '?resource=1'); |
| shouldBe('resourcetimingbufferfullEventCount', '0'); |
| } |
| |
| let resourcetimingbufferfullEventCount = 0; |
| performance.onresourcetimingbufferfull = () => { |
| resourcetimingbufferfullEventCount++; |
| debug(''); |
| debug(`Inside resourcetimingbufferfull ${resourcetimingbufferfullEventCount}`); |
| if (resourcetimingbufferfullEventCount == 1) { |
| evalAndLog('performance.setResourceTimingBufferSize(1)'); |
| shouldBe('resourcesAfterShrinkingBuffer = performance.getEntriesByType("resource"); resourcesAfterShrinkingBuffer.length', '2'); |
| shouldBe('resourcesAfterShrinkingBuffer[0]', 'originalResources[0]'); |
| shouldBe('resourcesAfterShrinkingBuffer[1]', 'originalResources[1]'); |
| shouldBe('performance.clearResourceTimings(); performance.getEntriesByType("resource").length', '0'); |
| setTimeout(() => { |
| debug(''); |
| debug('After resourcetimingbufferfull'); |
| shouldBe('resourcetimingbufferfullEventCount', '1'); |
| shouldBe('resourcesAfterClearing = performance.getEntriesByType("resource"); resourcesAfterClearing.length', '1'); |
| shouldBeEqualToString('resourcesAfterClearing[0].initiatorType', 'fetch'); |
| shouldBeEqualToString('new URL(resourcesAfterClearing[0].name).search', '?resource=2'); |
| finishJSTest(); |
| }, 0); |
| } |
| } |
| |
| var jsTestIsAsync = true; |
| |
| window.onload = startTest; |
| |
| </script> |
| <script src="/resources/js-test-post.js"></script> |
| </body> |
| </html> |
