[rules-users] Code Coverage

Mon Jan 23 11:33:20 EST 2012

I don't think anybody else has bothered to do this. Drools generates the classes in memory and they aren't written on disk - this makes linking with the standard instrumentation methods extremely hard if not impossible.
You may be able to hook into the classloader and/or class creation code to pass the bytecode through the instrumentation library if this is really needed, but if you tell your manager the cost of doing this they may be happy with the alternatives proposed - or just not doing coverage on code.

Thomas

From: rules-users-bounces at lists.jboss.org [mailto:rules-users-bounces at lists.jboss.org] On Behalf Of mike
Sent: 23 January 2012 16:25
To: Rules Users List
Subject: Re: [rules-users] Code Coverage

I was wondering if there was any blog post or tutorial on how to set that up in jenkins or teamcity or things like that ... it's not a trivial thing to do ... also, based on the responses here, doesn't seem like a common practice

I don't know enough to figure out how to set it up ... as far as i know i need to instrument the code ... now, the code, would be whatever drools generates ... i don't know how to pickup the package that drools generates n' them how to instrument it

thank you very much four your time and answers
cheers
Mike
2012/1/23 Swindells, Thomas <TSwindells at nds.com<mailto:TSwindells at nds.com>>
There is nothing stopping you taking the output and producing a report in your CI showing lines (Rules) in red and green as to whether they have been touched as part of the tests - if you separate out your rules into a separate module you could probably output the report in the exact same format as the standard java report xml and get the standard tools to output an almost identical report.

Thomas

From: rules-users-bounces at lists.jboss.org<mailto:rules-users-bounces at lists.jboss.org> [mailto:rules-users-bounces at lists.jboss.org<mailto:rules-users-bounces at lists.jboss.org>] On Behalf Of mike
Sent: 23 January 2012 16:14

To: Rules Users List
Subject: Re: [rules-users] Code Coverage

I could argue this left and right with my managers ... but in reality when we mention code coverage we mean looking at a report in CI showing lines of code in green or red ... anything short of that is something else

Thank you very much for the response
Cheers
Mike
On Mon, Jan 23, 2012 at 10:47 AM, Wolfgang Laun <wolfgang.laun at gmail.com<mailto:wolfgang.laun at gmail.com>> wrote:
It is highly recommended as "best practice" to have RHS code that
doesn't contain any branching instructions. Then, executing means full
coverage.

In case it is necessary to have more complex code I'd not put it into
a RHS anyway (where it isn't really OO any more) but I'd code it in
Java files and just call from the RHS.

For the LHS you can also argue that firing proves coverage; although
it won't be full *expression* logic coverage, due to potentially
skipped subexpressions in disjunctions.

-W

On 23/01/2012, mike <mikemps at gmail.com<mailto:mikemps at gmail.com>> wrote:
> Thank you very much Thomas ... yes, what i need is standard code coverage
> ... my company is all over that metric
>
> cheers
> Mike
>
> 2012/1/23 Swindells, Thomas <TSwindells at nds.com<mailto:TSwindells at nds.com>>
>
>>  It depends what you are asking for,****
>>
>> If you just want to know what proportion of rules you have written have
>> actually activated then that can be simply achieved by having a
>> AgendaEventListener and using it to 'tick' rules off when they have been
>> triggered - the blog entry should have you achieve this.****
>>
>> ** **
>>
>> If you actually want to integrate it with standard java code coverage
>> reports then this is a different question and is likely to be much harder,
>> if not impossible, ****
>>
>> ** **
>>
>> Thomas****
>>
>> ** **
>>
>> *From:* rules-users-bounces at lists.jboss.org<mailto:rules-users-bounces at lists.jboss.org> [mailto:
>> rules-users-bounces at lists.jboss.org<mailto:rules-users-bounces at lists.jboss.org>] *On Behalf Of *mike
>> *Sent:* 23 January 2012 14:34
>> *To:* Rules Users List
>>
>> *Subject:* Re: [rules-users] Code Coverage****
>>
>>  ** **
>>
>> Thank you very much ... as far as i know in order to do code coverage i
>> need to instrument the packages i'm interested in covering ... this
>> recommendation doesn't take me in that direction****
>>
>> ** **
>>
>> It is very useful however in showing a way to test rules individually.****
>>
>> ** **
>>
>> Thank you****
>>
>> Mike ****
>>
>> ** **
>>
>> 2012/1/17 Toni Rikkola <toni.rikkola at gmail.com<mailto:toni.rikkola at gmail.com>>****
>>
>> You need to write the coverage tests for JUnit yourself. Test Scenarios in
>> Guvnor do this, but you can't use them outside Guvnor. ****
>>
>> ** **
>>
>> Test Scenarios get all the rule names for the rules in one package and
>> then compares that list to the rules that fired.****
>>
>> Edson's blog entry might help you
>> http://blog.athico.com/2011/10/cookbook-how-to-test-rules-using-xunit.html
>> .****
>>
>> ** **
>>
>> Toni****
>>
>> ** **
>>
>> On Jan 16, 2012, at 5:49 PM, mike wrote:****
>>
>> ** **
>>
>>  Hi there,****
>>
>> ** **
>>
>> I was wondering if its possible to measure code coverage on test running
>> against a set of rules.****
>>
>> ** **
>>
>> Thank you****
>>
>> Mike****
>>
>>  ****
>>
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