| <!DOCTYPE html> |
| <html> |
| <body> |
| <script src="/js-test-resources/js-test.js"></script> |
| <script> |
| description("Test case for bug 36156: XHR 'progress' event code assumes wrongly that expectedLength >= 0"); |
| debug("Verify that the progress event total property is 0 when the expected overall length can't be computed."); |
| jsTestIsAsync = true; |
| |
| gotRelevantProgressEvent = false; |
| |
| function test() |
| { |
| var xhr = new XMLHttpRequest(); |
| xhr.open("GET", "resources/chunked-transfer.py", true); |
| |
| xhr.onprogress = function(e) { |
| if (e.loaded >= 4 && e.total == 0 && !e.lengthComputable) { |
| testPassed("Length is not computable"); |
| gotRelevantProgressEvent = true; |
| } else if (e.total != 0 && !e.lengthComputable) { |
| testFailed("XMLHttpRequestProgressEvent lengthComputable=false but total is non-zero: " + e.total); |
| gotRelevantProgressEvent = true; |
| } |
| } |
| |
| xhr.onreadystatechange = function(e) { |
| if (xhr.readyState == xhr.DONE) { |
| shouldBeTrue("gotRelevantProgressEvent"); |
| finishJSTest(); |
| } |
| } |
| |
| xhr.send(); |
| } |
| |
| onload = () => { |
| setTimeout(test, 0); |
| }; |
| </script> |
| </body> |
