/usr/lib/python2.7/dist-packages/neutron_lib/tests/unit/utils/test_helpers.py is in python-neutron-lib 0.4.0-3.
This file is owned by root:root, with mode 0o644.
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# 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 collections
import re
import six
import testtools
from neutron_lib.tests import _base as base
from neutron_lib.utils import helpers
class TestParseMappings(base.BaseTestCase):
def parse(self, mapping_list, unique_values=True, unique_keys=True):
return helpers.parse_mappings(mapping_list, unique_values, unique_keys)
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({'key': 'val'}, self.parse(['key:val']))
def test_parse_mappings_succeeds_for_n_mappings(self):
self.assertEqual({'key1': 'val1', 'key2': 'val2'},
self.parse(['key1:val1', 'key2:val2']))
def test_parse_mappings_succeeds_for_duplicate_value(self):
self.assertEqual({'key1': 'val', 'key2': 'val'},
self.parse(['key1:val', 'key2:val'], False))
def test_parse_mappings_succeeds_for_no_mappings(self):
self.assertEqual({}, self.parse(['']))
def test_parse_mappings_succeeds_for_nonuniq_key(self):
self.assertEqual({'key': ['val1', 'val2']},
self.parse(['key:val1', 'key:val2', 'key:val2'],
unique_keys=False))
class TestCompareElements(base.BaseTestCase):
def test_compare_elements(self):
self.assertFalse(helpers.compare_elements([], ['napoli']))
self.assertFalse(helpers.compare_elements(None, ['napoli']))
self.assertFalse(helpers.compare_elements(['napoli'], []))
self.assertFalse(helpers.compare_elements(['napoli'], None))
self.assertFalse(helpers.compare_elements(['napoli', 'juve'],
['juve']))
self.assertTrue(helpers.compare_elements(['napoli', 'juve'],
['napoli', 'juve']))
self.assertTrue(helpers.compare_elements(['napoli', 'juve'],
['juve', 'napoli']))
class TestDictUtils(base.BaseTestCase):
def test_dict2str(self):
dic = {"key1": "value1", "key2": "value2", "key3": "value3"}
expected = "key1=value1,key2=value2,key3=value3"
self.assertEqual(expected, helpers.dict2str(dic))
def test_str2dict(self):
string = "key1=value1,key2=value2,key3=value3"
expected = {"key1": "value1", "key2": "value2", "key3": "value3"}
self.assertEqual(expected, helpers.str2dict(string))
def test_dict_str_conversion(self):
dic = {"key1": "value1", "key2": "value2"}
self.assertEqual(dic, helpers.str2dict(helpers.dict2str(dic)))
def test_diff_list_of_dict(self):
old_list = [{"key1": "value1"},
{"key2": "value2"},
{"key3": "value3"}]
new_list = [{"key1": "value1"},
{"key2": "value2"},
{"key4": "value4"}]
added, removed = helpers.diff_list_of_dict(old_list, new_list)
self.assertEqual(added, [dict(key4="value4")])
self.assertEqual(removed, [dict(key3="value3")])
class TestDict2Tuples(base.BaseTestCase):
def test_dict(self):
input_dict = {'foo': 'bar', '42': 'baz', 'aaa': 'zzz'}
expected = (('42', 'baz'), ('aaa', 'zzz'), ('foo', 'bar'))
output_tuple = helpers.dict2tuple(input_dict)
self.assertEqual(expected, output_tuple)
class TestCamelize(base.BaseTestCase):
def test_camelize(self):
data = {'bandwidth_limit': 'BandwidthLimit',
'test': 'Test',
'some__more__dashes': 'SomeMoreDashes',
'a_penguin_walks_into_a_bar': 'APenguinWalksIntoABar'}
for s, expected in data.items():
self.assertEqual(expected, helpers.camelize(s))
class TestRoundVal(base.BaseTestCase):
def test_round_val_ok(self):
for expected, value in ((0, 0),
(0, 0.1),
(1, 0.5),
(1, 1.49),
(2, 1.5)):
self.assertEqual(expected, helpers.round_val(value))
class TestGetRandomString(base.BaseTestCase):
def test_get_random_string(self):
length = 127
random_string = helpers.get_random_string(length)
self.assertEqual(length, len(random_string))
regex = re.compile('^[0-9a-fA-F]+$')
self.assertIsNotNone(regex.match(random_string))
def requires_py2(testcase):
return testtools.skipUnless(six.PY2, "requires python 2.x")(testcase)
def requires_py3(testcase):
return testtools.skipUnless(six.PY3, "requires python 3.x")(testcase)
class TestSafeDecodeUtf8(base.BaseTestCase):
@requires_py2
def test_py2_does_nothing(self):
s = 'test-py2'
self.assertIs(s, helpers.safe_decode_utf8(s))
@requires_py3
def test_py3_decoded_valid_bytes(self):
s = bytes('test-py2', 'utf-8')
decoded_str = helpers.safe_decode_utf8(s)
self.assertIsInstance(decoded_str, six.text_type)
self.assertEqual(s, decoded_str.encode('utf-8'))
@requires_py3
def test_py3_decoded_invalid_bytes(self):
s = bytes('test-py2', 'utf_16')
decoded_str = helpers.safe_decode_utf8(s)
self.assertIsInstance(decoded_str, six.text_type)
class TestSafeSortKey(base.BaseTestCase):
def test_safe_sort_key(self):
data1 = {'k1': 'v1',
'k2': 'v2'}
data2 = {'k2': 'v2',
'k1': 'v1'}
self.assertEqual(helpers.safe_sort_key(data1),
helpers.safe_sort_key(data2))
def _create_dict_from_list(self, list_data):
d = collections.defaultdict(list)
for k, v in list_data:
d[k].append(v)
return d
def test_safe_sort_key_mapping_ne(self):
list1 = [('yellow', 1), ('blue', 2), ('yellow', 3),
('blue', 4), ('red', 1)]
data1 = self._create_dict_from_list(list1)
list2 = [('yellow', 3), ('blue', 4), ('yellow', 1),
('blue', 2), ('red', 1)]
data2 = self._create_dict_from_list(list2)
self.assertNotEqual(helpers.safe_sort_key(data1),
helpers.safe_sort_key(data2))
def test_safe_sort_key_mapping(self):
list1 = [('yellow', 1), ('blue', 2), ('red', 1)]
data1 = self._create_dict_from_list(list1)
list2 = [('blue', 2), ('red', 1), ('yellow', 1)]
data2 = self._create_dict_from_list(list2)
self.assertEqual(helpers.safe_sort_key(data1),
helpers.safe_sort_key(data2))
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