openstack/neutron-vpnaas
Code Issues Proposed changes
9826e09325
neutron-vpnaas/neutron/tests/unit/test_attributes.py
Yong Sheng Gong 53a66b299f validate and recommend the cidr 
Bug #1195974

It is hard to validate the CIDR typed in by user,
the simple way is to recognize only one and recommend it
if user's input is not the one.

Change-Id: Ic8defe30a43a5ae69c3f737094f866b36bb68f59
2013-07-07 21:26:59 +08:00

689 lines
27 KiB
Python
Raw Blame History

# vim: tabstop=4 shiftwidth=4 softtabstop=4
# Copyright 2012 OpenStack Foundation
# All Rights Reserved.
#
# 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 neutron.api.v2 import attributes
from neutron.common import exceptions as q_exc
from neutron.tests import base
class TestAttributes(base.BaseTestCase):
def _construct_dict_and_constraints(self):
"""Constructs a test dictionary and a definition of constraints.
:return: A (dictionary, constraint) tuple
"""
constraints = {'key1': {'type:values': ['val1', 'val2'],
'required': True},
'key2': {'type:string': None,
'required': False},
'key3': {'type:dict': {'k4': {'type:string': None,
'required': True}},
'required': True}}
dictionary = {'key1': 'val1',
'key2': 'a string value',
'key3': {'k4': 'a string value'}}
return dictionary, constraints
def test_is_attr_set(self):
data = attributes.ATTR_NOT_SPECIFIED
self.assertIs(attributes.is_attr_set(data), False)
data = None
self.assertIs(attributes.is_attr_set(data), False)
data = "I'm set"
self.assertIs(attributes.is_attr_set(data), True)
def test_validate_values(self):
msg = attributes._validate_values(4, [4, 6])
self.assertIsNone(msg)
msg = attributes._validate_values(4, (4, 6))
self.assertIsNone(msg)
msg = attributes._validate_values(7, [4, 6])
self.assertEqual(msg, "'7' is not in [4, 6]")
msg = attributes._validate_values(7, (4, 6))
self.assertEqual(msg, "'7' is not in (4, 6)")
def test_validate_string(self):
msg = attributes._validate_string(None, None)
self.assertEqual(msg, "'None' is not a valid string")
# 0 == len(data) == max_len
msg = attributes._validate_string("", 0)
self.assertIsNone(msg)
# 0 == len(data) < max_len
msg = attributes._validate_string("", 9)
self.assertIsNone(msg)
# 0 < len(data) < max_len
msg = attributes._validate_string("123456789", 10)
self.assertIsNone(msg)
# 0 < len(data) == max_len
msg = attributes._validate_string("123456789", 9)
self.assertIsNone(msg)
# 0 < max_len < len(data)
msg = attributes._validate_string("1234567890", 9)
self.assertEqual(msg, "'1234567890' exceeds maximum length of 9")
msg = attributes._validate_string("123456789", None)
self.assertIsNone(msg)
def test_validate_no_whitespace(self):
data = 'no_white_space'
result = attributes._validate_no_whitespace(data)
self.assertEqual(result, data)
self.assertRaises(q_exc.InvalidInput,
attributes._validate_no_whitespace,
'i have whitespace')
self.assertRaises(q_exc.InvalidInput,
attributes._validate_no_whitespace,
'i\thave\twhitespace')
def test_validate_range(self):
msg = attributes._validate_range(1, [1, 9])
self.assertIsNone(msg)
msg = attributes._validate_range(5, [1, 9])
self.assertIsNone(msg)
msg = attributes._validate_range(9, [1, 9])
self.assertIsNone(msg)
msg = attributes._validate_range(1, (1, 9))
self.assertIsNone(msg)
msg = attributes._validate_range(5, (1, 9))
self.assertIsNone(msg)
msg = attributes._validate_range(9, (1, 9))
self.assertIsNone(msg)
msg = attributes._validate_range(0, [1, 9])
self.assertEqual(msg, "'0' is not in range 1 through 9")
msg = attributes._validate_range(10, (1, 9))
self.assertEqual(msg, "'10' is not in range 1 through 9")
def test_validate_mac_address(self):
mac_addr = "ff:16:3e:4f:00:00"
msg = attributes._validate_mac_address(mac_addr)
self.assertIsNone(msg)
mac_addr = "ffa:16:3e:4f:00:00"
msg = attributes._validate_mac_address(mac_addr)
self.assertEqual(msg, "'%s' is not a valid MAC address" % mac_addr)
def test_validate_ip_address(self):
ip_addr = '1.1.1.1'
msg = attributes._validate_ip_address(ip_addr)
self.assertIsNone(msg)
ip_addr = '1111.1.1.1'
msg = attributes._validate_ip_address(ip_addr)
self.assertEqual(msg, "'%s' is not a valid IP address" % ip_addr)
ip_addr = '1.1.1.1 has whitespace'
msg = attributes._validate_ip_address(ip_addr)
self.assertEqual(msg, "'%s' is not a valid IP address" % ip_addr)
ip_addr = '111.1.1.1\twhitespace'
msg = attributes._validate_ip_address(ip_addr)
self.assertEqual(msg, "'%s' is not a valid IP address" % ip_addr)
ip_addr = '111.1.1.1\nwhitespace'
msg = attributes._validate_ip_address(ip_addr)
self.assertEqual(msg, "'%s' is not a valid IP address" % ip_addr)
def test_validate_ip_pools(self):
pools = [[{'end': '10.0.0.254'}],
[{'start': '10.0.0.254'}],
[{'start': '1000.0.0.254',
'end': '1.1.1.1'}],
[{'start': '10.0.0.2', 'end': '10.0.0.254',
'forza': 'juve'}],
[{'start': '10.0.0.2', 'end': '10.0.0.254'},
{'end': '10.0.0.254'}],
[None],
None]
for pool in pools:
msg = attributes._validate_ip_pools(pool)
self.assertIsNotNone(msg)
pools = [[{'end': '10.0.0.254', 'start': '10.0.0.2'},
{'start': '11.0.0.2', 'end': '11.1.1.1'}],
[{'start': '11.0.0.2', 'end': '11.0.0.100'}]]
for pool in pools:
msg = attributes._validate_ip_pools(pool)
self.assertIsNone(msg)
def test_validate_fixed_ips(self):
fixed_ips = [
{'data': [{'subnet_id': '00000000-ffff-ffff-ffff-000000000000',
'ip_address': '1111.1.1.1'}],
'error_msg': "'1111.1.1.1' is not a valid IP address"},
{'data': [{'subnet_id': 'invalid',
'ip_address': '1.1.1.1'}],
'error_msg': "'invalid' is not a valid UUID"},
{'data': None,
'error_msg': "Invalid data format for fixed IP: 'None'"},
{'data': "1.1.1.1",
'error_msg': "Invalid data format for fixed IP: '1.1.1.1'"},
{'data': ['00000000-ffff-ffff-ffff-000000000000', '1.1.1.1'],
'error_msg': "Invalid data format for fixed IP: "
"'00000000-ffff-ffff-ffff-000000000000'"},
{'data': [['00000000-ffff-ffff-ffff-000000000000', '1.1.1.1']],
'error_msg': "Invalid data format for fixed IP: "
"'['00000000-ffff-ffff-ffff-000000000000', "
"'1.1.1.1']'"},
{'data': [{'subnet_id': '00000000-0fff-ffff-ffff-000000000000',
'ip_address': '1.1.1.1'},
{'subnet_id': '00000000-ffff-ffff-ffff-000000000000',
'ip_address': '1.1.1.1'}],
'error_msg': "Duplicate IP address '1.1.1.1'"}]
for fixed in fixed_ips:
msg = attributes._validate_fixed_ips(fixed['data'])
self.assertEqual(msg, fixed['error_msg'])
fixed_ips = [[{'subnet_id': '00000000-ffff-ffff-ffff-000000000000',
'ip_address': '1.1.1.1'}],
[{'subnet_id': '00000000-0fff-ffff-ffff-000000000000',
'ip_address': '1.1.1.1'},
{'subnet_id': '00000000-ffff-ffff-ffff-000000000000',
'ip_address': '1.1.1.2'}]]
for fixed in fixed_ips:
msg = attributes._validate_fixed_ips(fixed)
self.assertIsNone(msg)
def test_validate_nameservers(self):
ns_pools = [['1.1.1.2', '1.1.1.2'],
['www.hostname.com', 'www.hostname.com'],
['77.hostname.com'],
['1000.0.0.1'],
None]
for ns in ns_pools:
msg = attributes._validate_nameservers(ns, None)
self.assertIsNotNone(msg)
ns_pools = [['100.0.0.2'],
['www.hostname.com'],
['www.great.marathons.to.travel'],
['valid'],
['www.internal.hostname.com']]
for ns in ns_pools:
msg = attributes._validate_nameservers(ns, None)
self.assertIsNone(msg)
def test_validate_hostroutes(self):
hostroute_pools = [[{'destination': '100.0.0.0/24'}],
[{'nexthop': '10.0.2.20'}],
[{'nexthop': '10.0.2.20',
'forza': 'juve',
'destination': '100.0.0.0/8'}],
[{'nexthop': '1110.0.2.20',
'destination': '100.0.0.0/8'}],
[{'nexthop': '10.0.2.20',
'destination': '100.0.0.0'}],
[{'nexthop': '10.0.2.20',
'destination': '100.0.0.0/8'},
{'nexthop': '10.0.2.20',
'destination': '100.0.0.0/8'}],
[None],
None]
for host_routes in hostroute_pools:
msg = attributes._validate_hostroutes(host_routes, None)
self.assertIsNotNone(msg)
hostroute_pools = [[{'destination': '100.0.0.0/24',
'nexthop': '10.0.2.20'}],
[{'nexthop': '10.0.2.20',
'destination': '100.0.0.0/8'},
{'nexthop': '10.0.2.20',
'destination': '101.0.0.0/8'}]]
for host_routes in hostroute_pools:
msg = attributes._validate_hostroutes(host_routes, None)
self.assertIsNone(msg)
def test_validate_ip_address_or_none(self):
ip_addr = None
msg = attributes._validate_ip_address_or_none(ip_addr)
self.assertIsNone(msg)
ip_addr = '1.1.1.1'
msg = attributes._validate_ip_address_or_none(ip_addr)
self.assertIsNone(msg)
ip_addr = '1111.1.1.1'
msg = attributes._validate_ip_address_or_none(ip_addr)
self.assertEqual(msg, "'%s' is not a valid IP address" % ip_addr)
def test_hostname_pattern(self):
data = '@openstack'
msg = attributes._validate_regex(data, attributes.HOSTNAME_PATTERN)
self.assertIsNotNone(msg)
data = 'www.openstack.org'
msg = attributes._validate_regex(data, attributes.HOSTNAME_PATTERN)
self.assertIsNone(msg)
def test_uuid_pattern(self):
data = 'garbage'
msg = attributes._validate_regex(data, attributes.UUID_PATTERN)
self.assertIsNotNone(msg)
data = '00000000-ffff-ffff-ffff-000000000000'
msg = attributes._validate_regex(data, attributes.UUID_PATTERN)
self.assertIsNone(msg)
def test_mac_pattern(self):
# Valid - 3 octets
base_mac = "fa:16:3e:00:00:00"
msg = attributes._validate_regex(base_mac,
attributes.MAC_PATTERN)
self.assertIsNone(msg)
# Valid - 4 octets
base_mac = "fa:16:3e:4f:00:00"
msg = attributes._validate_regex(base_mac,
attributes.MAC_PATTERN)
self.assertIsNone(msg)
# Invalid - not unicast
base_mac = "01:16:3e:4f:00:00"
msg = attributes._validate_regex(base_mac,
attributes.MAC_PATTERN)
self.assertIsNotNone(msg)
# Invalid - invalid format
base_mac = "a:16:3e:4f:00:00"
msg = attributes._validate_regex(base_mac,
attributes.MAC_PATTERN)
self.assertIsNotNone(msg)
# Invalid - invalid format
base_mac = "ffa:16:3e:4f:00:00"
msg = attributes._validate_regex(base_mac,
attributes.MAC_PATTERN)
self.assertIsNotNone(msg)
# Invalid - invalid format
base_mac = "01163e4f0000"
msg = attributes._validate_regex(base_mac,
attributes.MAC_PATTERN)
self.assertIsNotNone(msg)
# Invalid - invalid format
base_mac = "01-16-3e-4f-00-00"
msg = attributes._validate_regex(base_mac,
attributes.MAC_PATTERN)
self.assertIsNotNone(msg)
# Invalid - invalid format
base_mac = "00:16:3:f:00:00"
msg = attributes._validate_regex(base_mac,
attributes.MAC_PATTERN)
self.assertIsNotNone(msg)
# Invalid - invalid format
base_mac = "12:3:4:5:67:89ab"
msg = attributes._validate_regex(base_mac,
attributes.MAC_PATTERN)
self.assertIsNotNone(msg)
def test_validate_subnet(self):
# Valid - IPv4
cidr = "10.0.2.0/24"
msg = attributes._validate_subnet(cidr,
None)
self.assertIsNone(msg)
# Valid - IPv6 without final octets
cidr = "fe80::/24"
msg = attributes._validate_subnet(cidr,
None)
self.assertIsNone(msg)
# Valid - IPv6 with final octets
cidr = "fe80::/24"
msg = attributes._validate_subnet(cidr,
None)
self.assertIsNone(msg)
# Invalid - IPv4 missing mask
cidr = "10.0.2.0"
msg = attributes._validate_subnet(cidr,
None)
error = _("'%(data)s' isn't a recognized IP subnet cidr,"
" '%(cidr)s' is recommended") % {"data": cidr,
"cidr": "10.0.2.0/32"}
self.assertEqual(msg, error)
# Invalid - IPv4 with final octets
cidr = "192.168.1.1/24"
msg = attributes._validate_subnet(cidr,
None)
error = _("'%(data)s' isn't a recognized IP subnet cidr,"
" '%(cidr)s' is recommended") % {"data": cidr,
"cidr": "192.168.1.0/24"}
self.assertEqual(msg, error)
# Invalid - IPv6 without final octets, missing mask
cidr = "fe80::"
msg = attributes._validate_subnet(cidr,
None)
error = _("'%(data)s' isn't a recognized IP subnet cidr,"
" '%(cidr)s' is recommended") % {"data": cidr,
"cidr": "fe80::/128"}
self.assertEqual(msg, error)
# Invalid - IPv6 with final octets, missing mask
cidr = "fe80::0"
msg = attributes._validate_subnet(cidr,
None)
error = _("'%(data)s' isn't a recognized IP subnet cidr,"
" '%(cidr)s' is recommended") % {"data": cidr,
"cidr": "fe80::/128"}
self.assertEqual(msg, error)
# Invalid - Address format error
cidr = 'invalid'
msg = attributes._validate_subnet(cidr,
None)
error = "'%s' is not a valid IP subnet" % cidr
self.assertEqual(msg, error)
def test_validate_regex(self):
pattern = '[hc]at'
data = None
msg = attributes._validate_regex(data, pattern)
self.assertEqual(msg, "'%s' is not a valid input" % data)
data = 'bat'
msg = attributes._validate_regex(data, pattern)
self.assertEqual(msg, "'%s' is not a valid input" % data)
data = 'hat'
msg = attributes._validate_regex(data, pattern)
self.assertIsNone(msg)
data = 'cat'
msg = attributes._validate_regex(data, pattern)
self.assertIsNone(msg)
def test_validate_uuid(self):
msg = attributes._validate_uuid('garbage')
self.assertEqual(msg, "'garbage' is not a valid UUID")
msg = attributes._validate_uuid('00000000-ffff-ffff-ffff-000000000000')
self.assertIsNone(msg)
def test_validate_uuid_list(self):
# check not a list
uuids = [None,
123,
'e5069610-744b-42a7-8bd8-ceac1a229cd4',
'12345678123456781234567812345678',
{'uuid': 'e5069610-744b-42a7-8bd8-ceac1a229cd4'}]
for uuid in uuids:
msg = attributes._validate_uuid_list(uuid)
error = "'%s' is not a list" % uuid
self.assertEqual(msg, error)
# check invalid uuid in a list
invalid_uuid_lists = [[None],
[123],
[123, 'e5069610-744b-42a7-8bd8-ceac1a229cd4'],
['123', '12345678123456781234567812345678'],
['t5069610-744b-42a7-8bd8-ceac1a229cd4'],
['e5069610-744b-42a7-8bd8-ceac1a229cd44'],
['e50696100-744b-42a7-8bd8-ceac1a229cd4'],
['e5069610-744bb-42a7-8bd8-ceac1a229cd4']]
for uuid_list in invalid_uuid_lists:
msg = attributes._validate_uuid_list(uuid_list)
error = "'%s' is not a valid UUID" % uuid_list[0]
self.assertEqual(msg, error)
# check duplicate items in a list
duplicate_uuids = ['e5069610-744b-42a7-8bd8-ceac1a229cd4',
'f3eeab00-8367-4524-b662-55e64d4cacb5',
'e5069610-744b-42a7-8bd8-ceac1a229cd4']
msg = attributes._validate_uuid_list(duplicate_uuids)
error = ("Duplicate items in the list: "
"'%s'" % ', '.join(duplicate_uuids))
self.assertEqual(msg, error)
# check valid uuid lists
valid_uuid_lists = [['e5069610-744b-42a7-8bd8-ceac1a229cd4'],
['f3eeab00-8367-4524-b662-55e64d4cacb5'],
['e5069610-744b-42a7-8bd8-ceac1a229cd4',
'f3eeab00-8367-4524-b662-55e64d4cacb5']]
for uuid_list in valid_uuid_lists:
msg = attributes._validate_uuid_list(uuid_list)
self.assertEqual(msg, None)
def test_validate_dict_type(self):
for value in (None, True, '1', []):
self.assertEqual(attributes._validate_dict(value),
"'%s' is not a dictionary" % value)
def test_validate_dict_without_constraints(self):
msg = attributes._validate_dict({})
self.assertIsNone(msg)
# Validate a dictionary without constraints.
msg = attributes._validate_dict({'key': 'value'})
self.assertIsNone(msg)
def test_validate_a_valid_dict_with_constraints(self):
dictionary, constraints = self._construct_dict_and_constraints()
msg = attributes._validate_dict(dictionary, constraints)
self.assertIsNone(msg, 'Validation of a valid dictionary failed.')
def test_validate_dict_with_invalid_validator(self):
dictionary, constraints = self._construct_dict_and_constraints()
constraints['key1'] = {'type:unsupported': None, 'required': True}
msg = attributes._validate_dict(dictionary, constraints)
self.assertEqual(msg, "Validator 'type:unsupported' does not exist.")
def test_validate_dict_not_required_keys(self):
dictionary, constraints = self._construct_dict_and_constraints()
del dictionary['key2']
msg = attributes._validate_dict(dictionary, constraints)
self.assertIsNone(msg, 'Field that was not required by the specs was'
'required by the validator.')
def test_validate_dict_required_keys(self):
dictionary, constraints = self._construct_dict_and_constraints()
del dictionary['key1']
msg = attributes._validate_dict(dictionary, constraints)
self.assertIn('Expected keys:', msg)
def test_validate_dict_wrong_values(self):
dictionary, constraints = self._construct_dict_and_constraints()
dictionary['key1'] = 'UNSUPPORTED'
msg = attributes._validate_dict(dictionary, constraints)
self.assertIsNotNone(msg)
def test_subdictionary(self):
dictionary, constraints = self._construct_dict_and_constraints()
del dictionary['key3']['k4']
dictionary['key3']['k5'] = 'a string value'
msg = attributes._validate_dict(dictionary, constraints)
self.assertIn('Expected keys:', msg)
def test_validate_dict_or_none(self):
dictionary, constraints = self._construct_dict_and_constraints()
# Check whether None is a valid value.
msg = attributes._validate_dict_or_none(None, constraints)
self.assertIsNone(msg, 'Validation of a None dictionary failed.')
# Check validation of a regular dictionary.
msg = attributes._validate_dict_or_none(dictionary, constraints)
self.assertIsNone(msg, 'Validation of a valid dictionary failed.')
def test_validate_dict_or_empty(self):
dictionary, constraints = self._construct_dict_and_constraints()
# Check whether an empty dictionary is valid.
msg = attributes._validate_dict_or_empty({}, constraints)
self.assertIsNone(msg, 'Validation of a None dictionary failed.')
# Check validation of a regular dictionary.
msg = attributes._validate_dict_or_none(dictionary, constraints)
self.assertIsNone(msg, 'Validation of a valid dictionary failed.')
self.assertIsNone(msg, 'Validation of a valid dictionary failed.')
def test_validate_non_negative(self):
for value in (-1, '-2'):
self.assertEqual(attributes._validate_non_negative(value),
"'%s' should be non-negative" % value)
for value in (0, 1, '2', True, False):
msg = attributes._validate_non_negative(value)
self.assertIsNone(msg)
class TestConvertToBoolean(base.BaseTestCase):
def test_convert_to_boolean_bool(self):
self.assertIs(attributes.convert_to_boolean(True), True)
self.assertIs(attributes.convert_to_boolean(False), False)
def test_convert_to_boolean_int(self):
self.assertIs(attributes.convert_to_boolean(0), False)
self.assertIs(attributes.convert_to_boolean(1), True)
self.assertRaises(q_exc.InvalidInput,
attributes.convert_to_boolean,
7)
def test_convert_to_boolean_str(self):
self.assertIs(attributes.convert_to_boolean('True'), True)
self.assertIs(attributes.convert_to_boolean('true'), True)
self.assertIs(attributes.convert_to_boolean('False'), False)
self.assertIs(attributes.convert_to_boolean('false'), False)
self.assertIs(attributes.convert_to_boolean('0'), False)
self.assertIs(attributes.convert_to_boolean('1'), True)
self.assertRaises(q_exc.InvalidInput,
attributes.convert_to_boolean,
'7')
class TestConvertToInt(base.BaseTestCase):
def test_convert_to_int_int(self):
self.assertEqual(attributes.convert_to_int(-1), -1)
self.assertEqual(attributes.convert_to_int(0), 0)
self.assertEqual(attributes.convert_to_int(1), 1)
def test_convert_to_int_str(self):
self.assertEqual(attributes.convert_to_int('4'), 4)
self.assertEqual(attributes.convert_to_int('6'), 6)
self.assertRaises(q_exc.InvalidInput,
attributes.convert_to_int,
'garbage')
def test_convert_to_int_none(self):
self.assertRaises(q_exc.InvalidInput,
attributes.convert_to_int,
None)
def test_convert_none_to_empty_list_none(self):
self.assertEqual(
[], attributes.convert_none_to_empty_list(None))
def test_convert_none_to_empty_dict(self):
self.assertEqual(
{}, attributes.convert_none_to_empty_dict(None))
def test_convert_none_to_empty_list_value(self):
values = ['1', 3, [], [1], {}, {'a': 3}]
for value in values:
self.assertEqual(
value, attributes.convert_none_to_empty_list(value))
class TestConvertKvp(base.BaseTestCase):
def test_convert_kvp_list_to_dict_succeeds_for_missing_values(self):
result = attributes.convert_kvp_list_to_dict(['True'])
self.assertEqual({}, result)
def test_convert_kvp_list_to_dict_succeeds_for_multiple_values(self):
result = attributes.convert_kvp_list_to_dict(
['a=b', 'a=c', 'a=c', 'b=a'])
self.assertEqual({'a': ['c', 'b'], 'b': ['a']}, result)
def test_convert_kvp_list_to_dict_succeeds_for_values(self):
result = attributes.convert_kvp_list_to_dict(['a=b', 'c=d'])
self.assertEqual({'a': ['b'], 'c': ['d']}, result)
def test_convert_kvp_str_to_list_fails_for_missing_key(self):
with testtools.ExpectedException(q_exc.InvalidInput):
attributes.convert_kvp_str_to_list('=a')
def test_convert_kvp_str_to_list_fails_for_missing_equals(self):
with testtools.ExpectedException(q_exc.InvalidInput):
attributes.convert_kvp_str_to_list('a')
def test_convert_kvp_str_to_list_succeeds_for_one_equals(self):
result = attributes.convert_kvp_str_to_list('a=')
self.assertEqual(['a', ''], result)
def test_convert_kvp_str_to_list_succeeds_for_two_equals(self):
result = attributes.convert_kvp_str_to_list('a=a=a')
self.assertEqual(['a', 'a=a'], result)
class TestConvertToList(base.BaseTestCase):
def test_convert_to_empty_list(self):
for item in (None, [], (), {}):
self.assertEqual(attributes.convert_to_list(item), [])
def test_convert_to_list_string(self):
for item in ('', 'foo'):
self.assertEqual(attributes.convert_to_list(item), [item])
def test_convert_to_list_iterable(self):
for item in ([None], [1, 2, 3], (1, 2, 3), set([1, 2, 3]), ['foo']):
self.assertEqual(attributes.convert_to_list(item), list(item))
def test_convert_to_list_non_iterable(self):
for item in (True, False, 1, 1.2, object()):
self.assertEqual(attributes.convert_to_list(item), [item])
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