Unit-testing in Eclipse (2.8 nightly): class scala.ScalaObject not found

On Sun, Apr 11, 2010 at 9:16 AM, Dmitry Grigoriev wrote:
> I use latest nightly eclipse plugin for 2.8. After porting lib.web to
> 2.8, I found I cannot run individual unit-tests from Eclipse
> (Alt+Shift+X, T): it throws "java.lang.NoClassDefFoundError:
> scala/ScalaObject". Still, project compiles/rebuilds in Eclipse, and
> maven runs all unit-tests. I use JUnit4: @RunWith(classOf[JUnitRunner]).
> Can anyone help?

Can you post your projects .project and .classpath files?

Cheers,

Miles

Attached.

On 04/11/2010 01:46 PM, Miles Sabin wrote:
> On Sun, Apr 11, 2010 at 9:16 AM, Dmitry Grigoriev wrote:
>> I use latest nightly eclipse plugin for 2.8. After porting lib.web to
>> 2.8, I found I cannot run individual unit-tests from Eclipse
>> (Alt+Shift+X, T): it throws "java.lang.NoClassDefFoundError:
>> scala/ScalaObject". Still, project compiles/rebuilds in Eclipse, and
>> maven runs all unit-tests. I use JUnit4: @RunWith(classOf[JUnitRunner]).
>> Can anyone help?
>
> Can you post your projects .project and .classpath files?
>
> Cheers,
>
>
> Miles
>

On Sun, Apr 11, 2010 at 1:36 PM, Dmitry Grigoriev wrote:
> Attached.

Thanks ...

It looks like you have a 2.8.0 Beta1 build of scalatest in there ...
that won't play nicely with a nightly build.

Cheers,

Miles

On 04/11/2010 04:47 PM, Miles Sabin wrote:
> It looks like you have a 2.8.0 Beta1 build of scalatest in there ...
> that won't play nicely with a nightly build.

Thank you. And what version would you recommend to use?

On Sun, Apr 11, 2010 at 2:25 PM, Dmitry Grigoriev wrote:
> On 04/11/2010 04:47 PM, Miles Sabin wrote:
>> It looks like you have a 2.8.0 Beta1 build of scalatest in there ...
>> that won't play nicely with a nightly build.
>
> Thank you. And what version would you recommend to use?

If there are corresponding nightly builds of the scalatest binaries
then you should use those.

Cheers,

Miles

1. Ive seen the same thing. As Miles noted, I think its Scala's
general problem with binary compatibility, not anything plugin
related.

2. I dont think all the libraries like Scalatest are tracking the
nightlies. You'll probably have to either suspend unit testing and
wait for an RC release of Scala 2.8 (what Ive done), or else roll back
to the Beta1 and install the matching plugin build from the archive.

Basically, we're in a "rough patch" right now til 2.8 comes out...

-Ben

On Sun, Apr 11, 2010 at 7:16 PM, Dmitry Grigoriev wrote:
> Hello all,
>
> I use latest nightly eclipse plugin for 2.8. After porting lib.web to
> 2.8, I found I cannot run individual unit-tests from Eclipse
> (Alt+Shift+X, T): it throws "java.lang.NoClassDefFoundError:
> scala/ScalaObject". Still, project compiles/rebuilds in Eclipse, and
> maven runs all unit-tests. I use JUnit4: @RunWith(classOf[JUnitRunner]).
> Can anyone help?
>
> --
> Cheers,
> dimgel
>
> http://dimgel.ru/lib.web
> Thin, stateless, strictly typed Scala web framework.
>
>

For those interested, I've posted this morning a version of specs compatible
with the latest Scala 2.8.0 nightly
(http://scala-tools.org/repo-snapshots/org/scala-tools/testing/specs_2.8....).
But note that:

1. ScalaCheck won't work
2. I haven't yet tested it with the latest Eclipse plugin

Eric.

Ben Hutchison-3 wrote:
>
> 1. Ive seen the same thing. As Miles noted, I think its Scala's
> general problem with binary compatibility, not anything plugin
> related.
>
> 2. I dont think all the libraries like Scalatest are tracking the
> nightlies. You'll probably have to either suspend unit testing and
> wait for an RC release of Scala 2.8 (what Ive done), or else roll back
> to the Beta1 and install the matching plugin build from the archive.
>
> Basically, we're in a "rough patch" right now til 2.8 comes out...
>
> -Ben
>
> On Sun, Apr 11, 2010 at 7:16 PM, Dmitry Grigoriev wrote:
>> Hello all,
>>
>> I use latest nightly eclipse plugin for 2.8. After porting lib.web to
>> 2.8, I found I cannot run individual unit-tests from Eclipse
>> (Alt+Shift+X, T): it throws "java.lang.NoClassDefFoundError:
>> scala/ScalaObject". Still, project compiles/rebuilds in Eclipse, and
>> maven runs all unit-tests. I use JUnit4: @RunWith(classOf[JUnitRunner]).
>> Can anyone help?
>>
>> --
>> Cheers,
>> dimgel
>>
>> http://dimgel.ru/lib.web
>> Thin, stateless, strictly typed Scala web framework.
>>
>>
>
>

On 04/12/2010 04:11 AM, Ben Hutchison wrote:
> Basically, we're in a "rough patch" right now til 2.8 comes out...

Thank you, I'll probably do the same. (Reverting Eclipse configuration
failed, and I don't want to spend time reinstalling Eclipse.)