Empty option value maybe cause Unity driver failed to initialize
If the value of list type option is empty, Unity driver may failed to initialize. Example: unity_io_ports= unity_storage_pool_names= Change-Id: Ib5850d984bfd3651d308f448993251e9ec5a9460 Closes-bug: #1775518
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@ -133,7 +133,8 @@ class UnityDriverTest(unittest.TestCase):
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def test_default_initialize(self):
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config = conf.Configuration(None)
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iscsi_driver = driver.UnityDriver(configuration=config)
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self.assertIsNone(config.unity_storage_pool_names)
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self.assertListEqual([], config.unity_storage_pool_names)
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self.assertListEqual([], config.unity_io_ports)
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self.assertTrue(config.san_thin_provision)
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self.assertEqual('', config.san_ip)
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self.assertEqual('admin', config.san_login)
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@ -258,3 +258,24 @@ class UnityUtilsTest(unittest.TestCase):
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ret = utils.get_backend_qos_specs(volume)
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expected = {'maxBWS': 2, 'id': 'max_2_mbps', 'maxIOPS': None}
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self.assertEqual(expected, ret)
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def test_remove_empty(self):
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option = mock.Mock()
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value_list = [' pool1', 'pool2 ', ' pool3 ']
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ret = utils.remove_empty(option, value_list)
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expected = ['pool1', 'pool2', 'pool3']
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self.assertListEqual(expected, ret)
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def test_remove_empty_none(self):
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option = mock.Mock()
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value_list = None
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ret = utils.remove_empty(option, value_list)
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expected = None
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self.assertEqual(expected, ret)
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def test_remove_empty_empty_list(self):
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option = mock.Mock()
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value_list = []
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ret = utils.remove_empty(option, value_list)
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expected = None
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self.assertEqual(expected, ret)
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@ -31,11 +31,11 @@ CONF = cfg.CONF
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UNITY_OPTS = [
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cfg.ListOpt('unity_storage_pool_names',
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default=None,
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default=[],
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help='A comma-separated list of storage pool names to be '
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'used.'),
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cfg.ListOpt('unity_io_ports',
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default=None,
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default=[],
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help='A comma-separated list of iSCSI or FC ports to be used. '
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'Each port can be Unix-style glob expressions.'),
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cfg.BoolOpt('remove_empty_host',
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@ -273,12 +273,13 @@ def get_backend_qos_specs(volume):
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def remove_empty(option, value_list):
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if value_list is not None:
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if value_list:
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value_list = list(filter(None, map(str.strip, value_list)))
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if not value_list:
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raise exception.InvalidConfigurationValue(option=option,
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value=value_list)
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return value_list
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return value_list
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return None
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def match_any(full, patterns):
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