Author Topic: ServletDriver? (Read 253 times)

Aslak Hellesøy · « **on:** March 28, 2012, 08:27:56 PM »

Hi folks,
Some colleagues of mine want to use Cucumber (which I wrote) with
Grails. That's simple enough if you use a browser - examples here:
http://wiki.github.com/aslakhellesoy/cuke4duke/webdriver

However, that's a bit slow since you have to fire up a web server and
run everything through HTTP. I'd much rather everything was in the
same JVM - kind of how Rails people use Webrat without a server
running.

So I thought about writing a driver that creates servlet requests and
sends them straight to the GrailsDispatcherServlet. Do you think
that's feasible?

It would be nice to have a ServletDriver that's agnostic of the
underlying web framework, but I'm not sure how simple that is.

I also found an old thread about this:

http://groups.google.com/group/webdriver/browse_thread/thread/6b17e68...

So what do you think? Should I try?

Aslak

Simon Stewart · « **Reply #1 on:** March 28, 2012, 08:28:11 PM »

Hi Aslak,
The easiest way to do this is probably by modifying the HtmlUnit
driver's webclient's WebConnection. Or, in code:

@Override
protected WebClient modifyWebClient(WebClient client) {
WebConnection conn = new YourWebConnection();
client.setWebConnection(mockWebConnection);
return client;

}

You've then got the choice of whether you want to implement a custom
listener in Jetty or just hook directly into your web framework of
choice (Grails, in this case)
TBH, on a modern OS with proper handling of the loopback interface,
I'm not sure how much overhead you'll be saving. It'd be interesting
to find out.

Regards,

Simon

On Mon, Oct 26, 2009 at 8:22 PM, Aslak Hellesøy

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aslak hellesoy · « **Reply #2 on:** March 28, 2012, 08:28:21 PM »

On Wed, Oct 28, 2009 at 4:13 PM, Simon Stewart

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Thanks Simon - great tips. I realise the runtime performance gain
might not be significant - I'm trying to gain time in developer
switching time - so people don't have to restart the web server when
they make changes. -But maybe that's not even needed in Grails? (I'm
still learning Grails). Anyway - I'll let you all know if I pursue and
make progress.
Cheers,
Aslak

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Selenium Webdriver · « **Reply #2 on:** March 28, 2012, 08:28:21 PM »

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