call site 9 for path.local.common
path/local/testing/test_posix.py - line 130
125
126
127
128
129
130
   def test_commondir_nocommon(self):
       # XXX This is here in local until we find a way to implement this
       #     using the subversion command line api.
       p1 = self.root.join('something')
       p2 = py.path.local(self.root.sep+'blabla')
->     assert p1.common(p2) == '/'