On 10 Apr 2009, at 23:40, Ashley Moran wrote:
On 10 Apr 2009, at 19:39, Matt Wynne wrote:
It's feasible I think, and something I'd definitely like to add for
my own purposes eventually. I think RCov works with JRuby too,
though I've not tried it myself.
Hmmm - the JRuby process is just running Cucumber, where my Merb
code is all in MRI. It's the MRI process that needs to run RCov,
right? (I've never used it beyond inspecting its coverage reports.)
Ah right, OK, that might make things a little simpler then :)
After a few iterations, I settled on Cucover using Rcov as a
library[1], slipping in a call to Rcov::CallSiteAnalyzer#run_hooked
into the Cucumber AST. This makes it easy for me to pull out just the
data I need from the Rcov result objects, rather than trying to parse
the Rcov binary's output.
The code is really pretty simple so if you want to pull it down and
take a look maybe we can have a chat directly about it would work.
I think the problem would be around how the external process gets
started (and it's coverage observed) but your situation should be
much easier than a selenium setup where the process could be on a
remote box.
Just to be clear, are you calling Ruby to call Cucumber to call
JRuby to call Celerity, as you seem to be suggesting?
Currently what I've got is a rake file running in MRI, that calls
jrake, that runs the Cucumber task in the JRuby process. The
indirection there just so I can type `rake features`, as Merb won't
(currently) start up in JRuby, which prevents me from typing `jrake
features`.
Part of my env.rb involves some code I wrote that wraps
daemon_controller to start my webapps. I have a separate "features"
environment that is started on demand, so it's only available when
Cucumber is running.
So it sounds like what would need to happen is for those
daemon_controller spawned webapps to be run with coverage, and that
coverage passed back to Cucover, right? This sounds like an
interesting challenge :D
[1]http://manalang.com/bdoc/rdoc/rcov-0.8.1.2.0/rdoc/classes/Rcov/CallSiteAnalyzer.html
Matt Wynne
http://beta.songkick.com
http://blog.mattwynne.net
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