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

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

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https://bugs.launchpad.net/bugs/1156696

Title:
  Can't run quantum.tests.unit.test_dhcp_agent.TestDhcpAgentEventHandler
  solely

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

Bug description:
  TestDhcpAgentEventHandler tests cannot be run independently making
  difficult to use testr (that runs tests in parallel in an
  unpredictable order):

  $ nosetests quantum.tests.unit.test_dhcp_agent:TestDhcpAgentEventHandler
  quantum.tests.unit.test_dhcp_agent.TestDhcpAgentEventHandler.test_disable_dhcp_helper_driver_failure ... ERROR
  quantum.tests.unit.test_dhcp_agent.TestDhcpAgentEventHandler.test_disable_dhcp_helper_known_network ... ERROR
  quantum.tests.unit.test_dhcp_agent.TestDhcpAgentEventHandler.test_disable_dhcp_helper_unknown_network ... ERROR
  quantum.tests.unit.test_dhcp_agent.TestDhcpAgentEventHandler.test_disable_isolated_metadata_proxy ... ERROR

  ...

  ======================================================================
  ERROR: quantum.tests.unit.test_dhcp_agent.TestDhcpAgentEventHandler.test_disable_dhcp_helper_driver_failure
  ----------------------------------------------------------------------
  _StringException: Empty attachments:
    pythonlogging:''
    stderr
    stdout

  Traceback (most recent call last):
    File "/tmp/quantum/quantum/tests/unit/test_dhcp_agent.py", line 426, in setUp
      self.dhcp = dhcp_agent.DhcpAgent(HOSTNAME)
    File "/tmp/quantum/quantum/agent/dhcp_agent.py", line 82, in __init__
      self._populate_networks_cache()
    File "/tmp/quantum/quantum/agent/dhcp_agent.py", line 90, in _populate_networks_cache
      self.root_helper
    File "/tmp/quantum/quantum/agent/linux/dhcp.py", line 228, in existing_dhcp_networks
      confs_dir = os.path.abspath(os.path.normpath(conf.dhcp_confs))
    File "/tmp/.venv/lib/python2.6/site-packages/oslo/config/cfg.py", line 1191, in __getattr__
      return self._get(name)
    File "/tmp/.venv/lib/python2.6/site-packages/oslo/config/cfg.py", line 1513, in _get
      value = self._substitute(self._do_get(name, group))
    File "/tmp/.venv/lib/python2.6/site-packages/oslo/config/cfg.py", line 1529, in _do_get
      info = self._get_opt_info(name, group)
    File "/tmp/.venv/lib/python2.6/site-packages/oslo/config/cfg.py", line 1629, in _get_opt_info
      raise NoSuchOptError(opt_name, group)
  NoSuchOptError: no such option: dhcp_confs

  These tests require importing an option from quantum.agent.linux.dhcp
  module.

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