I'm trying to write a functional test that verifies that an instance
of my Product works correctly after it's been exported and re-imported.
I'm stuck on how to give the test object a valid _p_oid which is needed
to do the export.
This Product is a dynamic content object for CMF. Its behavior depends on
another CMF type instances, which it keeps a path to. So I need to ensure
that things work even when one or both objects have moved. I've got
moving & renaming handled well and now I want to test import/export.
So my test suite sets up a dummy CMF instance. I do this by swiping
stuff from the CMFCore and CMFDefault tests; I subclass SecurityRequestTest
and then do
manage_addCMFSite(self.root, 'cmf_test_site' )
self.site = self.root.cmf_test_site
I've also got a portal folder in the site which I keep a handy
reference to as self.fol1.
All tests are passing, now I move on to writing the export / import tests.
Let's say the object I want to export is self.cmf_test_site.fol1.cp1.
I have a shorthand reference to this stored as self.cp1.
So I think the first thing I need to do is get the export data
data self.fol1.manage_exportObject('cp1', download=1)
... and once that works, I'll use the same data to do an import.
But the export fails. Using pdb and browsing some source I've learned
that cp1 needs a _p_jar and _p_oid in order to be exported.
The _p_jar I've already dealt with in my move / rename tests, by swiping
a hack from CMFCore/tests/test_portalFolder.py:
id = self.cp1.getId()
# WAAAA! must get _p_jar set
old, self.cp1._p_jar = self.cp1._p_jar, self.root._p_jar
data = self.fol1.manage_exportObject(id, download=1)
self.cp1._p_jar = old
That seems to work fine.
But now I'm stuck on _p_oid. How do I give the object a valid one?
I'm sure I can't just use the same trick and swipe the _p_oid of the app
I must say that using pyunit to write functional tests for zope 2 / CMF
is a royal pain. It requires too much knowledge of implementation.
(why should i need to worry about _p_foo???)
Also I've found that if there's an error in your class' setUp(),
it can cause the test to hang and never show you a traceback.
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