Hi, I m trying to make my first content type with zope3. The code is available there: http://github.com/toutpt/z3weblog.entry/tree I m following the second edition of the book "web component developement with zope3", i know this is not the last edition. So, i m making a ISized component for my simple content type, with a simple unittest, but now, i want to use zope.dublincore package and i get an error when i m launch the tests: ================= (zope3apps)toutpt@linux-tggd:~/workspace/zope3apps/apps/prout> .bin/test Running tests at level 1 Running unit tests: Running: ... Error in test test_size_for_display (z3weblog.entry.tests.test_size.EntrySizeTestCase) Traceback (most recent call last): File "/home/toutpt/outils/python_system/2.5.4/lib/python2.5/unittest.py", line 260, in run testMethod() File "/home/toutpt/workspace/zope3apps/apps/prout/src/z3weblog.entry/src/z3weblog/entry/tests/test_size.py", line 21, in test_size_for_display msg = self.size.sizeForDisplay() File "/home/toutpt/workspace/zope3apps/apps/prout/src/z3weblog.entry/src/z3weblog/entry/size.py", line 24, in sizeForDisplay unit, chars = self.sizeForSorting() File "/home/toutpt/workspace/zope3apps/apps/prout/src/z3weblog.entry/src/z3weblog/entry/size.py", line 18, in sizeForSorting dc = dcI.IZopeDublinCore(self.context) TypeError: ('Could not adapt', <z3weblog.entry.content.ZODBWeblogEntry object at 0x839382c>, <InterfaceClass zope.dublincore.interfaces.IZopeDublinCore>) . Error in test test_size_for_sorting (z3weblog.entry.tests.test_size.EntrySizeTestCase) Traceback (most recent call last): File "/home/toutpt/outils/python_system/2.5.4/lib/python2.5/unittest.py", line 260, in run testMethod() File "/home/toutpt/workspace/zope3apps/apps/prout/src/z3weblog.entry/src/z3weblog/entry/tests/test_size.py", line 16, in test_size_for_sorting unit, size = self.size.sizeForSorting() File "/home/toutpt/workspace/zope3apps/apps/prout/src/z3weblog.entry/src/z3weblog/entry/size.py", line 18, in sizeForSorting dc = dcI.IZopeDublinCore(self.context) TypeError: ('Could not adapt', <z3weblog.entry.content.ZODBWeblogEntry object at 0x839382c>, <InterfaceClass zope.dublincore.interfaces.IZopeDublinCore>) Ran 4 tests with 0 failures and 2 errors in 0.007 seconds. Tests with errors: test_size_for_display (z3weblog.entry.tests.test_size.EntrySizeTestCase) test_size_for_sorting (z3weblog.entry.tests.test_size.EntrySizeTestCase) ============ The trace back is very clear, the zope.dublincore components are not loaded. The question is : what is the best way to load components in unittests ? Do just i have to load the zcml of zope.dublincore, or do i have to register only needed components, if so how can i do that ? JeanMichel FRANCOIS Makina-Corpus