I am using repoze.depinj in a small project to help replace a backend
database with a dummy version. I was puzzled for quite some time by my
code sometimes getting my test dummy and sometimes getting the real
database. I finally tracked this down to something unexpected in
repoze.depinj: every call to lookup() removes an inserted dummy. Since
my code calls the backend at several places, I ended up having to do
multiple inject() calls in my test. My functional test base class now
looks like this:
def setUp(self):
from repoze.depinj import inject
from customer.portal.run import main
from customer.portal.backend import get_backend
from infrae.testbrowser.browser import Browser
self.backend = DummyBackend()
def dummy_get_backend(request):
return self.backend
# Every lookup() removes an injection, so inject many times
# to make sure multiple get_backend() calls are covered
for i in range(50):
inject(dummy_get_backend, get_backend)
self.app = main({})
self.browser = Browser(self.app)
this works, but is not very pleasant. I could not find any hint in the
repoze.depinj documentation that lookup() is supposed to remove an
override. Is that really the intended behaviour?
Wichert.
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