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[Thierry Carrez <thierry.carrez+lp@xxxxxxxxx>]

** Changed in: neutron
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/1287792

Title:
  test_ml2_plugin can't be run independently

Status in OpenStack Neutron (virtual network service):
  Fix Released

Bug description:
  Attempting to run the tests in neutron.tests.unit.ml2.test_ml2_plugin
  in isolation will fail when setUp for the main class attempts to
  override the 'ml2_type_vlan.network_vlan_ranges' option and finds that
  the group does not exist:

  ======================================================================
  ERROR: neutron.tests.unit.ml2.test_ml2_plugin.TestMl2BulkToggle.test_bulk_enabled_with_bulk_drivers
  ----------------------------------------------------------------------
  _StringException: Traceback (most recent call last):
    File "/home/vagrant/dev/src/neutron/neutron/tests/unit/ml2/test_ml2_plugin.py", line 57, in setUp
      group='ml2_type_vlan')
    File "/opt/stack/oslo.config/oslo/config/cfg.py", line 1547, in __inner
      result = f(self, *args, **kwargs)
    File "/opt/stack/oslo.config/oslo/config/cfg.py", line 1797, in set_override
      opt_info = self._get_opt_info(name, group)
    File "/opt/stack/oslo.config/oslo/config/cfg.py", line 2102, in _get_opt_info
      group = self._get_group(group)
    File "/opt/stack/oslo.config/oslo/config/cfg.py", line 2086, in _get_group
      raise NoSuchGroupError(group_name)
  NoSuchGroupError: no such group: ml2_type_vlan

  Manually importing the type_vlan module where the config option is
  defined will result in an entirely different error, presumably because
  the ml2 drivers are intended to be loaded via stevador.

  It should be possible to run any given neutron test in isolation
  without error, so a fix is needed.

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