vmware-nsx/quantum/tests/unit/test_common_utils.py
Henry Gessau 6a5edbc3c9 Create a common function for method _parse_network_vlan_ranges used
by plugins.

The _parse_network_vlan_ranges method does the same thing for the
linuxbridge, ovs, and hyperv plugins. Create a common function for
the plugins to use instead. This paves the way for improving vlan
range verification (see #1169266) in one place.

Fixes Bug #1177428

Change-Id: Ie8c20807e9146dd9c8bc011dd3a4dc10ec871e0b
2013-05-09 11:04:16 -04:00

193 lines
7.7 KiB
Python

# Copyright (c) 2012 OpenStack Foundation.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
import testtools
from quantum.common import exceptions as q_exc
from quantum.common import utils
from quantum.plugins.common import utils as plugin_utils
from quantum.tests import base
class TestParseMappings(base.BaseTestCase):
def parse(self, mapping_list, unique_values=True):
return utils.parse_mappings(mapping_list, unique_values)
def test_parse_mappings_fails_for_missing_separator(self):
with testtools.ExpectedException(ValueError):
self.parse(['key'])
def test_parse_mappings_fails_for_missing_key(self):
with testtools.ExpectedException(ValueError):
self.parse([':val'])
def test_parse_mappings_fails_for_missing_value(self):
with testtools.ExpectedException(ValueError):
self.parse(['key:'])
def test_parse_mappings_fails_for_extra_separator(self):
with testtools.ExpectedException(ValueError):
self.parse(['key:val:junk'])
def test_parse_mappings_fails_for_duplicate_key(self):
with testtools.ExpectedException(ValueError):
self.parse(['key:val1', 'key:val2'])
def test_parse_mappings_fails_for_duplicate_value(self):
with testtools.ExpectedException(ValueError):
self.parse(['key1:val', 'key2:val'])
def test_parse_mappings_succeeds_for_one_mapping(self):
self.assertEqual(self.parse(['key:val']), {'key': 'val'})
def test_parse_mappings_succeeds_for_n_mappings(self):
self.assertEqual(self.parse(['key1:val1', 'key2:val2']),
{'key1': 'val1', 'key2': 'val2'})
def test_parse_mappings_succeeds_for_duplicate_value(self):
self.assertEqual(self.parse(['key1:val', 'key2:val'], False),
{'key1': 'val', 'key2': 'val'})
def test_parse_mappings_succeeds_for_no_mappings(self):
self.assertEqual(self.parse(['']), {})
class UtilTestParseVlanRanges(base.BaseTestCase):
_err_prefix = "Invalid network VLAN range: '"
_err_too_few = "' - 'need more than 2 values to unpack'"
_err_too_many = "' - 'too many values to unpack'"
_err_not_int = "' - 'invalid literal for int() with base 10: '%s''"
def _range_too_few_err(self, nv_range):
return self._err_prefix + nv_range + self._err_too_few
def _range_too_many_err(self, nv_range):
return self._err_prefix + nv_range + self._err_too_many
def _vlan_not_int_err(self, nv_range, vlan):
return self._err_prefix + nv_range + (self._err_not_int % vlan)
class TestParseOneVlanRange(UtilTestParseVlanRanges):
def parse_one(self, cfg_entry):
return plugin_utils.parse_network_vlan_range(cfg_entry)
def test_parse_one_net_no_vlan_range(self):
config_str = "net1"
expected_networks = ("net1", None)
self.assertEqual(self.parse_one(config_str), expected_networks)
def test_parse_one_net_and_vlan_range(self):
config_str = "net1:100:199"
expected_networks = ("net1", (100, 199))
self.assertEqual(self.parse_one(config_str), expected_networks)
def test_parse_one_net_incomplete_range(self):
config_str = "net1:100"
expected_msg = self._range_too_few_err(config_str)
err = self.assertRaises(q_exc.NetworkVlanRangeError,
self.parse_one, config_str)
self.assertEqual(str(err), expected_msg)
def test_parse_one_net_range_too_many(self):
config_str = "net1:100:150:200"
expected_msg = self._range_too_many_err(config_str)
err = self.assertRaises(q_exc.NetworkVlanRangeError,
self.parse_one, config_str)
self.assertEqual(str(err), expected_msg)
def test_parse_one_net_vlan1_not_int(self):
config_str = "net1:foo:199"
expected_msg = self._vlan_not_int_err(config_str, 'foo')
err = self.assertRaises(q_exc.NetworkVlanRangeError,
self.parse_one, config_str)
self.assertEqual(str(err), expected_msg)
def test_parse_one_net_vlan2_not_int(self):
config_str = "net1:100:bar"
expected_msg = self._vlan_not_int_err(config_str, 'bar')
err = self.assertRaises(q_exc.NetworkVlanRangeError,
self.parse_one, config_str)
self.assertEqual(str(err), expected_msg)
class TestParseVlanRangeList(UtilTestParseVlanRanges):
def parse_list(self, cfg_entries):
return plugin_utils.parse_network_vlan_ranges(cfg_entries)
def test_parse_list_one_net_no_vlan_range(self):
config_list = ["net1"]
expected_networks = {"net1": []}
self.assertEqual(self.parse_list(config_list), expected_networks)
def test_parse_list_one_net_vlan_range(self):
config_list = ["net1:100:199"]
expected_networks = {"net1": [(100, 199)]}
self.assertEqual(self.parse_list(config_list), expected_networks)
def test_parse_two_nets_no_vlan_range(self):
config_list = ["net1",
"net2"]
expected_networks = {"net1": [],
"net2": []}
self.assertEqual(self.parse_list(config_list), expected_networks)
def test_parse_two_nets_range_and_no_range(self):
config_list = ["net1:100:199",
"net2"]
expected_networks = {"net1": [(100, 199)],
"net2": []}
self.assertEqual(self.parse_list(config_list), expected_networks)
def test_parse_two_nets_no_range_and_range(self):
config_list = ["net1",
"net2:200:299"]
expected_networks = {"net1": [],
"net2": [(200, 299)]}
self.assertEqual(self.parse_list(config_list), expected_networks)
def test_parse_two_nets_bad_vlan_range1(self):
config_list = ["net1:100",
"net2:200:299"]
expected_msg = self._range_too_few_err(config_list[0])
err = self.assertRaises(q_exc.NetworkVlanRangeError,
self.parse_list, config_list)
self.assertEqual(str(err), expected_msg)
def test_parse_two_nets_vlan_not_int2(self):
config_list = ["net1:100:199",
"net2:200:0x200"]
expected_msg = self._vlan_not_int_err(config_list[1], '0x200')
err = self.assertRaises(q_exc.NetworkVlanRangeError,
self.parse_list, config_list)
self.assertEqual(str(err), expected_msg)
def test_parse_two_nets_and_append_1_2(self):
config_list = ["net1:100:199",
"net1:1000:1099",
"net2:200:299"]
expected_networks = {"net1": [(100, 199),
(1000, 1099)],
"net2": [(200, 299)]}
self.assertEqual(self.parse_list(config_list), expected_networks)
def test_parse_two_nets_and_append_1_3(self):
config_list = ["net1:100:199",
"net2:200:299",
"net1:1000:1099"]
expected_networks = {"net1": [(100, 199),
(1000, 1099)],
"net2": [(200, 299)]}
self.assertEqual(self.parse_list(config_list), expected_networks)