| # Copyright 2015 Mirantis Inc. |
| # 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. |
| |
| from netaddr import ip |
| import random |
| import re |
| |
| import six |
| from tempest import config |
| import testtools |
| |
| CONF = config.CONF |
| |
| |
| def get_microversion_as_tuple(microversion_str): |
| """Transforms string-like microversion to two-value tuple of integers. |
| |
| Tuple of integers useful for microversion comparisons. |
| """ |
| regex = r"^([1-9]\d*)\.([1-9]\d*|0)$" |
| match = re.match(regex, microversion_str) |
| if not match: |
| raise ValueError( |
| "Microversion does not fit template 'x.y' - %s" % microversion_str) |
| return int(match.group(1)), int(match.group(2)) |
| |
| |
| def is_microversion_gt(left, right): |
| """Is microversion for left is greater than the right one.""" |
| return get_microversion_as_tuple(left) > get_microversion_as_tuple(right) |
| |
| |
| def is_microversion_ge(left, right): |
| """Is microversion for left is greater than or equal to the right one.""" |
| return get_microversion_as_tuple(left) >= get_microversion_as_tuple(right) |
| |
| |
| def is_microversion_eq(left, right): |
| """Is microversion for left is equal to the right one.""" |
| return get_microversion_as_tuple(left) == get_microversion_as_tuple(right) |
| |
| |
| def is_microversion_ne(left, right): |
| """Is microversion for left is not equal to the right one.""" |
| return get_microversion_as_tuple(left) != get_microversion_as_tuple(right) |
| |
| |
| def is_microversion_le(left, right): |
| """Is microversion for left is less than or equal to the right one.""" |
| return get_microversion_as_tuple(left) <= get_microversion_as_tuple(right) |
| |
| |
| def is_microversion_lt(left, right): |
| """Is microversion for left is less than the right one.""" |
| return get_microversion_as_tuple(left) < get_microversion_as_tuple(right) |
| |
| |
| def is_microversion_supported(microversion): |
| bottom = get_microversion_as_tuple(CONF.share.min_api_microversion) |
| microversion = get_microversion_as_tuple(microversion) |
| top = get_microversion_as_tuple(CONF.share.max_api_microversion) |
| return bottom <= microversion <= top |
| |
| |
| def skip_if_microversion_not_supported(microversion): |
| """Decorator for tests that are microversion-specific.""" |
| if not is_microversion_supported(microversion): |
| reason = ("Skipped. Test requires microversion '%s'." % microversion) |
| return testtools.skip(reason) |
| return lambda f: f |
| |
| |
| def skip_if_microversion_lt(microversion): |
| """Decorator for tests that are microversion-specific.""" |
| if is_microversion_lt(CONF.share.max_api_microversion, microversion): |
| reason = ("Skipped. Test requires microversion greater than or " |
| "equal to '%s'." % microversion) |
| return testtools.skip(reason) |
| return lambda f: f |
| |
| |
| def rand_ip(network=False): |
| """This uses the TEST-NET-3 range of reserved IP addresses. |
| |
| Using this range, which are reserved solely for use in |
| documentation and example source code, should avoid any potential |
| conflicts in real-world testing. |
| """ |
| test_net_3 = '203.0.113.' |
| address = test_net_3 + six.text_type(random.randint(0, 255)) |
| if network: |
| mask_length = six.text_type(random.randint(24, 32)) |
| address = '/'.join((address, mask_length)) |
| ip_network = ip.IPNetwork(address) |
| return '/'.join((six.text_type(ip_network.network), mask_length)) |
| return address |
| |
| |
| def rand_ipv6_ip(network=False): |
| """This uses the IPv6 documentation range of 2001:DB8::/32""" |
| ran_add = ["%x" % random.randrange(0, 16 ** 4) for i in range(6)] |
| address = "2001:0DB8:" + ":".join(ran_add) |
| if network: |
| mask_length = six.text_type(random.randint(32, 128)) |
| address = '/'.join((address, mask_length)) |
| ip_network = ip.IPNetwork(address) |
| return '/'.join((six.text_type(ip_network.network), mask_length)) |
| return address |
| |
| |
| def choose_matching_backend(share, pools, share_type): |
| extra_specs = {} |
| # fix extra specs with string values instead of boolean |
| for k, v in share_type['extra_specs'].items(): |
| extra_specs[k] = (True if six.text_type(v).lower() == 'true' |
| else False if six.text_type(v).lower() == 'false' |
| else v) |
| selected_pool = next( |
| (x for x in pools if (x['name'] != share['host'] and all( |
| y in x['capabilities'].items() for y in extra_specs.items()))), |
| None) |
| |
| return selected_pool |
| |
| |
| def get_configured_extra_specs(variation=None): |
| """Retrieve essential extra specs according to configuration in tempest. |
| |
| :param variation: can assume possible values: None to be as configured in |
| tempest; 'opposite_driver_modes' for as configured in tempest but |
| inverse driver mode; 'invalid' for inverse as configured in tempest, |
| ideal for negative tests. |
| :return: dict containing essential extra specs. |
| """ |
| |
| extra_specs = {'storage_protocol': CONF.share.capability_storage_protocol} |
| |
| if variation == 'invalid': |
| extra_specs['driver_handles_share_servers'] = ( |
| not CONF.share.multitenancy_enabled) |
| extra_specs['snapshot_support'] = ( |
| not CONF.share.capability_snapshot_support) |
| |
| elif variation == 'opposite_driver_modes': |
| extra_specs['driver_handles_share_servers'] = ( |
| not CONF.share.multitenancy_enabled) |
| extra_specs['snapshot_support'] = ( |
| CONF.share.capability_snapshot_support) |
| |
| else: |
| extra_specs['driver_handles_share_servers'] = ( |
| CONF.share.multitenancy_enabled) |
| extra_specs['snapshot_support'] = ( |
| CONF.share.capability_snapshot_support) |
| extra_specs['create_share_from_snapshot_support'] = ( |
| CONF.share.capability_create_share_from_snapshot_support) |
| |
| return extra_specs |