十五年测试老手,长期负责WEB\APP 项目测试,目前主要负责团队管理工作。
PERFORMANCE TESTING A FLEX BLAZEDS APPLICATION
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In the past few years I’ve seen an increasing interest in Flex applications at our customers. I have to say that I’m not surprised about this trend. Not only do Flex applications generally look great, but they also provide a big boost to user experience. As a developer and architect I am also quite pleased with the programming model and extensive widget library. Sure, Adobe can still improve on a lot of things, but so far I have always worked with pleasure on Flex applications.
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lw1V3lE0Recently, at one of our customers, I bumped into another interesting side of Flex application development, namely performance testing (e.g. load-testing or stress-testing). Surprisingly enough, it is very hard to find an affordable solution for this. There are commercial tools out there that seem to do it quite well (
Neoload) or reasonably well (
WebLOAD) but I could not find a single viable open source alternative.
51Testing软件测试网,GfN7A8} }]Of course, it’s not exactly straightforward to write such a tool. The difficulty lies in the ability to generate and send AMF requests to the webserver, plus the interpretation of the AMF response you get back. The standard approach that most performance testing tools use is based on the assumption of HTTP requests and responses. While the AMF protocol technically “hitches a ride” on the HTTP protocol as well, the content is packed into a binary format (AMF) that can’t be interpreted the regular way HTTP requests and responses can. Hence the need for a dedicated tool that
caninterpret AMF. However, not every customer has tens of thousands of dollars to spend. So, how do you cope with this?
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