[test/migration] fix crash on execution This assertion is there for unclear reasons. ===================== unittest_migration.py ======================= -> creating tables [====================] -> inserting default user and default groups. -> storing the schema in the database [====================] -> database for instance data initialized. F ====================================================================== FAIL: test_db_creation (unittest_migration.BaseCreationTC) make sure database can be created ---------------------------------------------------------------------- Traceback (most recent call last) File "/home/auc/confs/forges/logilab/common/testlib.py", line 661, in _proceed testfunc(*args, **kwargs) File "/home/auc/confs/forges/cubicweb/test/unittest_migration.py", line 106, in test_db_creation handler.build_db_cache() File "/home/auc/confs/forges/cubicweb/devtools/__init__.py", line 469, in build_db_cache self.init_test_database() File "/home/auc/confs/forges/cubicweb/devtools/__init__.py", line 729, in init_test_database init_repository(self.config, interactive=False) File "/home/auc/confs/forges/cubicweb/server/__init__.py", line 217, in init_repository repo = Repository(config, vreg=vreg) File "/home/auc/confs/forges/cubicweb/server/repository.py", line 197, in __init__ self.init_cnxset_pool() File "/home/auc/confs/forges/cubicweb/server/repository.py", line 220, in init_cnxset_pool config.bootstrap_cubes() File "/home/auc/confs/forges/cubicweb/devtools/__init__.py", line 176, in bootstrap_cubes super(TestServerConfiguration, self).bootstrap_cubes() File "/home/auc/confs/forges/cubicweb/server/serverconfig.py", line 279, in bootstrap_cubes self.init_cubes(self.expand_cubes(splitstrip(line))) File "/home/auc/confs/forges/cubicweb/cwconfig.py", line 1022, in init_cubes super(CubicWebConfiguration, self).init_cubes(cubes) File "/home/auc/confs/forges/cubicweb/cwconfig.py", line 798, in init_cubes assert self._cubes is None, repr(self._cubes) AssertionError: ('card', 'file', 'localperms', 'tag')