I happened to put an apostrophe into the name of a test case page and later tried to rename that page. The rename operation had the resulted in an Internal Error:
TypeError: coercing to Unicode: need string or buffer, NoneType found
... and all subsequent access to test catalogs and test cases failed with another Internal error.
The cure is to delete the wiki page and the testcase from the database (table wiki and table testcase.
I've put severity at major - it is unhealthy to people with high blood pressure if it happens in a large set of test cases.
PS. TestManager: Really nice work!
TestManager 1.4.10, Python 2.6, RHEL
Most recent call last:
File "/usr/lib/python2.6/site-packages/trac/web/main.py", line 514, in _dispatch_request
File "/usr/lib/python2.6/site-packages/trac/web/main.py", line 261, in dispatch
File "/usr/lib/python2.6/site-packages/trac/web/chrome.py", line 843, in render_template
stream |= self._filter_stream(req, method, filename, stream, data)
File "/usr/lib/python2.6/site-packages/Genshi-0.6-py2.6.egg/genshi/core.py", line 132, in __or__
return Stream(_ensure(function(self)), serializer=self.serializer)
File "/usr/lib/python2.6/site-packages/trac/web/chrome.py", line 994, in inner
File "build/bdist.linux-x86_64/egg/testmanager/wiki.py", line 124, in filter_stream
return self._testcase_wiki_view(req, formatter, planid, page_name, stream)
File "build/bdist.linux-x86_64/egg/testmanager/wiki.py", line 374, in _testcase_wiki_view
tag.input(type='button', value=_("Open a Ticket on this Test Case"), onclick='creaTicket("'+tc_name+'", "", "", "'+summary+'")'),