Re: [Pyunit-interest] Using PyUnit with JPython to test-drive Java?

[Tjitske H. en O. P. <th...@nl...>]

Steve,

Thanks for the hint. I've modified the unittest.py a little and it now works
with JPython (text-only, but that's okay).
Only remaining problem is the stacktrace for failures: it currently only
shows the calls to
unittest.py methods, not the call in the actual test routine or a trace
through the Java sources
that I'm testing. The problem was with the use of the "traceback" module in
printNumberedErrors.
I've modified it and it now looks like this:

    def printNumberedErrors(self,errFlavour,errors):
        if not errors: return
        if len(errors) == 1:
            self.stream.writeln("There was 1 %s:" % errFlavour)
        else:
            self.stream.writeln("There were %i %ss:" %
                                (len(errors), errFlavour))
        i = 1
        for test,error in errors:
            self.stream.writeln("%i) %s" % (i, test))
# changes start here
#            errString =
string.join(apply(traceback.format_exception,error),"")
#            self.stream.writeln(errString)
            errclass,errmsg,errstack = error
            errstackdump = java.lang.StringBuffer()
            errstack.dumpStack(errstackdump)
            self.stream.writeln("%s %s" % (errclass,errmsg))
            self.stream.writeln("%s" % errstackdump)
# end changes
            i = i + 1

But this is not yet perfect. Anyone a better solution here?

Anyway, using JPython with PyUnit to test-drive Java is a much better
solution than
using JPython with JUnit.

-Otto Perdeck

> > [snip] I would prefer to use PyUnit to drive my Java classes.
> > In the doc it is suggested that this isn't possible, but why is that?
[snip]
>
> There are a few complications; I think they were mainly covered in a few
mails
> on this list a couple of months back. If you didn't already look, perhaps
> you could look at the list archives and see if they answer your questions.

> The interrelationship of JUnit and PyUnit together with JPython/CPython is
> one of great interest to me. I have to admit that I'm currently doing Java
> work with JUnit, and I'm writing the tests in Java.
>
> I'm trying to pick out aspects of JUnit v3 that might be useful in PyUnit,
but
> usually I prefer to keep things simple so that my poor brain can
understand
> them.
> Steve Purcell, Pythangelist