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Recording can help a lot for e.g. to understand what exactly is being POST-ed when you have complex form submissions etc. but described below is an approach using JMeter regular expression support to arrive at stable and repeatable test scripts for Wicket applications.

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The content of the "href" attribute can be grabbed using the following regex.

"([^"].+:create:[^"].+?)"

The interesting thing here is that this is a "generic" regex. If you know the "wicket:id", this will work for all linksany link.

Within JMeter, you can add a "Regular Expression Extractor" listener post-processor to any requested page in your test script like this. This is how the above regex will look like: (the regex in the screenshot looks a bit different but does the exact same thing, for more information about the difference - look towards the end of this page)

The "$1$" refers to the content matched by the first regular expression that we have surrounded with brackets. In this case there is only one bracketed expression.

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And the regex required is exactly the same as handling a link:

"([^"].+:form:[^"].+?)"

Using this is almost the same as a link but this time we set the request method to POST and we also provide the expected request parameters.

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There is one more corner case we need to consider. The wicket Link class allows you to nest an anchor tag within some other HTML tag use non-anchor HTML tags as links, for e.g. a TD tag. So if you have:

<td wicket:id="new"><a href="#">Click Me</a></td>

RuntimeWicket generates some "onclick" javascript at runtime:

<td wicket:id="new" onclick="window.location.href='?wicket:interface=:4:header:new::ILinkListener:';return false;">
<a href="#">Click Me</a></td>

The formula for this is slightly different - single quotes instead of double quotes.

'([^'].+:new:[^'].+?)'

Conclusion

If you know the "wicket:id"s, creating repeatable JMeter tests for Wicket apps could be easier than creating them for normal web applications!

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You can get the value you are interested in corresponding to the string "My Label" in this case like this:

<input value="([^"].+?)".*\n.*My Label

You can easily submit the value of the "myradio" parameter in the next GET or POST request by using a JMeter variable (e.g. ${myradio})

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