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

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

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https://bugs.launchpad.net/bugs/1369516

Title:
  Convert libvirt driver test suites to use NoDBTestCase

Status in OpenStack Compute (Nova):
  Fix Released

Bug description:
  A large number of libvirt test classes inherit from the TestCase
  class, which means they incur the overhead of database setup

  nova/tests/virt/libvirt/test_blockinfo.py:class LibvirtBlockInfoTest(test.TestCase):
  nova/tests/virt/libvirt/test_blockinfo.py:class DefaultDeviceNamesTestCase(test.TestCase):
  nova/tests/virt/libvirt/test_dmcrypt.py:class LibvirtDmcryptTestCase(test.TestCase):
  nova/tests/virt/libvirt/test_driver.py:class CacheConcurrencyTestCase(test.TestCase):
  nova/tests/virt/libvirt/test_driver.py:class LibvirtConnTestCase(test.TestCase,
  nova/tests/virt/libvirt/test_driver.py:class HostStateTestCase(test.TestCase):
  nova/tests/virt/libvirt/test_driver.py:class IptablesFirewallTestCase(test.TestCase):
  nova/tests/virt/libvirt/test_driver.py:class NWFilterTestCase(test.TestCase):
  nova/tests/virt/libvirt/test_driver.py:class LibvirtUtilsTestCase(test.TestCase):
  nova/tests/virt/libvirt/test_driver.py:class LibvirtDriverTestCase(test.TestCase):
  nova/tests/virt/libvirt/test_driver.py:class LibvirtVolumeUsageTestCase(test.TestCase):
  nova/tests/virt/libvirt/test_driver.py:class LibvirtNonblockingTestCase(test.TestCase):
  nova/tests/virt/libvirt/test_driver.py:class LibvirtVolumeSnapshotTestCase(test.TestCase):
  nova/tests/virt/libvirt/test_imagebackend.py:class EncryptedLvmTestCase(_ImageTestCase, test.TestCase):
  nova/tests/virt/libvirt/test_vif.py:class LibvirtVifTestCase(test.TestCase):

  Some of these do not even use the database so can be trivially
  changed. Others will need significant refactoring work to remove
  database access before they can be changed to NoDBTestCase

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