cobertura-devel

RE: [Cobertura-devel] Branch coverage question ?

[Czechowski, I. <Igo...@sa...>]

The reason I'm asking is that I think that in certain cases I get faulty
reports regarding branch coverage.
Any help would be appreciated.

A simple example would solve my problem:

1:	public void branchCoverage(boolean test) {
2:		if (test){
3:			return true;
4:		 else
5:			return false;
6:	}


When can I achieve 100% branch coverage ?=20
1) When lines  2,4,5 are executed
2) When lines  2,3,4,5 are executed

Thanks
  Igor



-----Original Message-----
From: cob...@li...
[mailto:cob...@li...] On Behalf Of
Czechowski, Igor
Sent: Wednesday, June 22, 2005 3:23 PM
To: Cobertura-devel
Subject: [Cobertura-devel] Branch coverage question ?

Hi,

Where can I find detailed description of branch coverage that cobertura
measures ?

Thanks
  Igor


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Re: [Cobertura-devel] Branch coverage question ?

[Scott S. <sco...@gm...>]

Hi,

I don't know the answer on the Cobertura internals, but I would point
out two things:

1. Your example's return type is void, but I'd assume you meant it to
be boolean.

2. The compiler might optimize or reorganize such a simple method into this=
:

public boolean branchCoverage(boolean b) {
       return b;
}

Scott Stirling

On 6/23/05, Czechowski, Igor <Igo...@sa...> wrote:
> The reason I'm asking is that I think that in certain cases I get faulty
> reports regarding branch coverage.
> Any help would be appreciated.
>=20
> A simple example would solve my problem:
>=20
> 1:      public void branchCoverage(boolean test) {
> 2:              if (test){
> 3:                      return true;
> 4:               else
> 5:                      return false;
> 6:      }
>=20
>=20
> When can I achieve 100% branch coverage ?
> 1) When lines  2,4,5 are executed
> 2) When lines  2,3,4,5 are executed
>=20
> Thanks
>   Igor
>=20
>=20
>=20
> -----Original Message-----
> From: cob...@li...
> [mailto:cob...@li...] On Behalf Of
> Czechowski, Igor
> Sent: Wednesday, June 22, 2005 3:23 PM
> To: Cobertura-devel
> Subject: [Cobertura-devel] Branch coverage question ?
>=20
> Hi,
>=20
> Where can I find detailed description of branch coverage that cobertura
> measures ?
>=20
> Thanks
>   Igor
>=20
>=20
> -------------------------------------------------------
> SF.Net email is sponsored by: Discover Easy Linux Migration Strategies
> from IBM. Find simple to follow Roadmaps, straightforward articles,
> informative Webcasts and more! Get everything you need to get up to
> speed, fast. http://ads.osdn.com/?ad_idt77&alloc_id=16492&op=3Dick
> _______________________________________________
> Cobertura-devel mailing list
> Cob...@li...
> https://lists.sourceforge.net/lists/listinfo/cobertura-devel
>=20
>=20
> -------------------------------------------------------
> SF.Net email is sponsored by: Discover Easy Linux Migration Strategies
> from IBM. Find simple to follow Roadmaps, straightforward articles,
> informative Webcasts and more! Get everything you need to get up to
> speed, fast. http://ads.osdn.com/?ad_idt77&alloc_id=16492&opclick
> _______________________________________________
> Cobertura-devel mailing list
> Cob...@li...
> https://lists.sourceforge.net/lists/listinfo/cobertura-devel
>

Re: [Cobertura-devel] Branch coverage question ?

[Grzegorz L. <ha...@gm...>]

As Igor pointed, Cobertura computes Branch Coverage rather strange.
Check class net.sourceforge.cobertura.reporting.Main in sample report
on main Cobertura site. There is 100% Branch Coverage and 65% Line
Coverage. You can find also comment in source for
net.sourceforge.cobertura.instrument.MethodInstrumenter:

 * TODO: For branches, only count the branch as covered if both paths
are accessed?

Now it marks that branch was executed when "branch point" is executed.

Grzegorz

On 6/23/05, Scott Stirling <sco...@gm...> wrote:
> Hi,
>=20
> I don't know the answer on the Cobertura internals, but I would point
> out two things:
>=20
> 1. Your example's return type is void, but I'd assume you meant it to
> be boolean.
>=20
> 2. The compiler might optimize or reorganize such a simple method into th=
is:
>=20
> public boolean branchCoverage(boolean b) {
>        return b;
> }
>=20
> Scott Stirling
>=20
> On 6/23/05, Czechowski, Igor <Igo...@sa...> wrote:
> > The reason I'm asking is that I think that in certain cases I get fault=
y
> > reports regarding branch coverage.
> > Any help would be appreciated.
> >
> > A simple example would solve my problem:
> >
> > 1:      public void branchCoverage(boolean test) {
> > 2:              if (test){
> > 3:                      return true;
> > 4:               else
> > 5:                      return false;
> > 6:      }
> >
> >
> > When can I achieve 100% branch coverage ?
> > 1) When lines  2,4,5 are executed
> > 2) When lines  2,3,4,5 are executed
> >
> > Thanks
> >   Igor
> >
> >
> >
> > -----Original Message-----
> > From: cob...@li...
> > [mailto:cob...@li...] On Behalf Of
> > Czechowski, Igor
> > Sent: Wednesday, June 22, 2005 3:23 PM
> > To: Cobertura-devel
> > Subject: [Cobertura-devel] Branch coverage question ?
> >
> > Hi,
> >
> > Where can I find detailed description of branch coverage that cobertura
> > measures ?
> >
> > Thanks
> >   Igor
> >
> >
> > -------------------------------------------------------
> > SF.Net email is sponsored by: Discover Easy Linux Migration Strategies
> > from IBM. Find simple to follow Roadmaps, straightforward articles,
> > informative Webcasts and more! Get everything you need to get up to
> > speed, fast. http://ads.osdn.com/?ad_idt77&alloc_id=16492&op=3Dick
> > _______________________________________________
> > Cobertura-devel mailing list
> > Cob...@li...
> > https://lists.sourceforge.net/lists/listinfo/cobertura-devel
> >
> >
> > -------------------------------------------------------
> > SF.Net email is sponsored by: Discover Easy Linux Migration Strategies
> > from IBM. Find simple to follow Roadmaps, straightforward articles,
> > informative Webcasts and more! Get everything you need to get up to
> > speed, fast. http://ads.osdn.com/?ad_idt77&alloc_id=16492&opclick
> > _______________________________________________
> > Cobertura-devel mailing list
> > Cob...@li...
> > https://lists.sourceforge.net/lists/listinfo/cobertura-devel
> >
>=20
>=20
> -------------------------------------------------------
> SF.Net email is sponsored by: Discover Easy Linux Migration Strategies
> from IBM. Find simple to follow Roadmaps, straightforward articles,
> informative Webcasts and more! Get everything you need to get up to
> speed, fast. http://ads.osdn.com/?ad_idt77&alloc_id=16492&opclick
> _______________________________________________
> Cobertura-devel mailing list
> Cob...@li...
> https://lists.sourceforge.net/lists/listinfo/cobertura-devel
>