| <!DOCTYPE html> |
| <html> |
| <head> |
| <script src="/js-test-resources/js-test.js"></script> |
| <script> |
| function loadScript(url, async, onload, onerror) { |
| var script = document.createElement("script"); |
| script.async = async; |
| script.onload = onload; |
| if (onerror) |
| script.onerror = onerror; |
| script.src = url; |
| document.head.appendChild(script); |
| } |
| </script> |
| </head> |
| <body> |
| <script> |
| description("Slow scripts that fail to load should not dispatch multiple error events"); |
| |
| window.jsTestIsAsync = true; |
| |
| if (window.testRunner) { |
| testRunner.dumpAsText(); |
| testRunner.waitUntilDone(); |
| } |
| |
| var firstOnErrorHandlerCount = 0; |
| var secondOnErrorHandlerCount = 0; |
| function verifyAndFinish() { |
| shouldBe("firstOnErrorHandlerCount", "1"); |
| shouldBe("secondOnErrorHandlerCount", "1"); |
| finishJSTest(); |
| }; |
| |
| function failedFirst() { |
| firstOnErrorHandlerCount++; |
| // Issue another script load so as to have the script runner |
| // revisit its script queue. This should not result in this |
| // onerror handler running again. |
| var continuation = secondOnErrorHandlerCount ? verifyAndFinish : undefined; |
| loadScript("resources/success.js?1", true, continuation); |
| } |
| |
| function failedSecond() { |
| secondOnErrorHandlerCount++; |
| var continuation = firstOnErrorHandlerCount ? verifyAndFinish : undefined; |
| loadScript("resources/success.js?2", true, continuation); |
| } |
| |
| function unexpectedLoad() { |
| testFailed("Script should not have loaded"); |
| finishJSTest(); |
| } |
| |
| loadScript("resources/success.js?3", false); |
| loadScript("resources/slow-nonexisting-script.php?sleep=1", false, unexpectedLoad, failedFirst); |
| loadScript("resources/slow-nonexisting-script.php?sleep=2", false, unexpectedLoad, failedSecond); |
| </script> |
| </body> |
| </html> |
