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Simplest way to run Partest tool in Scala src distribution?
Fri, 2011-10-07, 19:30
I'm getting frustrated trying to use Partest, the test runner in the
Scala source dist.
I have a modified version of the Scala source tree [with splitting of
Numeric as discussed here: http://www.scala-lang.org/node/10871]. When
I "ant test" I get one failure from partest, but there's no info about
why the test failed. I want to rerun partest and:
(a) See all available info about the failure printed to stdout/err
(b) Run only failing tests (or a single test that I specify)
So far I guessed the command incantation below from googling and
reading partest source, so if someone could just fill in the bits in
<>, that would be much appreciated. (They're not self evident when
you're new to the source distribution.)
scala -cp
scala.tools.partest.nest.NestRunner --show-diff --show-log --failed
--classpath <??>
-Ben
PS As someone new to the source distribution, partest seems a bit
user-unfriendly. Why not print test failure info by default? What
about a single option to the ant build that does (a) & (b) above? Am I
missing something obvious?
Fri, 2011-10-07, 21:07
#2
Re: Simplest way to run Partest tool in Scala src distribution?
On Sat, Oct 8, 2011 at 5:49 AM, Paul Phillips wrote:
> On Fri, Oct 7, 2011 at 11:30 AM, Ben Hutchison wrote:
> Are you not using the command line runner for a reason (other than
> perhaps not knowing about it) ?
>
> ./test/partest --show-diff --show-log --failed
I didn't know about it. Thanks lot for the pointer. It was what I was seeking.
I've updated the Scala Internals wiki to mention the launcher scripts
[https://wiki.scala-lang.org/display/SIW/Partest+Usage].
However, less happily, the windows launcher parttest.bat was broken
for me - got NoClassDefError on startup.
I had to make the following edit to get it to work - removing quoting
around env. vars at lines 34 & 38:
diff --git a/test/partest.bat b/test/partest.bat
index 9ffed9b..27098b8 100755
Sat, 2011-10-08, 01:37
#3
Re: Simplest way to run Partest tool in Scala src distribution?
On Fri, Oct 7, 2011 at 12:56 PM, Ben Hutchison wrote:
> However, less happily, the windows launcher parttest.bat was broken
> for me - got NoClassDefError on startup.
As with too many things it's pretty much just me back here, and when
it comes to partest, unwillingly. I do many, many things only because
nobody else does them, but there is a line I draw, and that line is
windows. You must have seen me periodically begging someone to step
up and deal with the windows side of something. For the most part
nobody does, and so we have any number of things which are pretty much
frozen because the inertia to move them is too high (I'm thinking of
things like jline, the startup scripts, the process API...)
In the case of partest, either life goes on without windows or we have
no test suite. I figure the former is better.
On Fri, Oct 7, 2011 at 11:30 AM, Ben Hutchison wrote:
> I'm getting frustrated trying to use Partest, the test runner in the
> Scala source dist.
Hey, welcome to my life.
> scala -cp
> scala.tools.partest.nest.NestRunner --show-diff --show-log --failed
> --classpath <??>
Are you not using the command line runner for a reason (other than
perhaps not knowing about it) ?
./test/partest --show-diff --show-log --failed
> PS As someone new to the source distribution, partest seems a bit
> user-unfriendly. Why not print test failure info by default? What
> about a single option to the ant build that does (a) & (b) above? Am I
> missing something obvious?
Ha ha. Why not do a thousand things. Why not surrender a material
fraction of your sanity to it. Why not rewrite it completely (see
~/src/partest-alternative) and then have to abandon it because for
some reason it runs slowly on windows. "Why, why, why," it's a word I
hear a lot.
Why not read these.
% git log --author=extempore -- src/partest
Why not consider strapping on the keyboard. Only so much a guy can
do, and I am way past the point of putting more effort into partest.