[Zope] Running ExternalMethods using ZopeTestCase

[Tim Edwards]

Hi,

I am trying to run an ExternalMethod from a ZopeTestCase:

class TestSomeProduct(ZopeTestCase.ZopeTestCase):

    def afterSetUp(self):
        # Put SESSION object into REQUEST
        request = self.app.REQUEST
        sdm = self.app.session_data_manager
        request.set('SESSION', sdm.getSessionData())
        self.session = request.SESSION

    def testSomething(self):
        '''Test something'''
        print self.app.test2.company.id
        print self.app.test2.company._module
        print self.app.test2.company._function
        INSTANCE_HOME = insthome
        os.environ['INSTANCE_HOME'] = insthome
        print 'in the main module instance home is ' + INSTANCE_HOME
        print self.app.test2.company.filepath()
        print self.app.test2.company()

self.app.test2.company() is the External Method. The id, _module (Module
name) and _function (Function name) attributes are returning correct value,
as verified by the print statements. The problem seems to be that when I
actually call the method it can't find the module in the file system, to
verify this print self.app.test2.company.filepath() returns None. I have set
the instance home variable and environment variable and the print statements
above show the right values, in my case "C:\Program Files\Plone\Data".

I have traced this through some of the source code. The call to the external
method goes down into the __call__ function of
Products\ExternalMethod\ExternalMethod.py and from there it calls _getPath
from App\Extensions.py. This is where the cause of the problem seems to be:
the cause of the problem is that the instance_home variable loses it's value
- it becomes "C:\Program Files\Plone\Zope\lib\python\Testing". The
Intance_home environment variable still has the correct value. This causes
zope to be unable to find the external method.

Any help would be greatly appreciated

Tim Edwards