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# ============LICENSE_START=======================================================
# Copyright (c) 2018-2019 AT&T Intellectual Property. 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.
# ============LICENSE_END=========================================================
#
"""mocking for the policy-engine - shared by many tests"""
import copy
import json
from policyhandler.pdp_api.pdp_consts import (PDP_METADATA,
PDP_POLICY_ID,
PDP_POLICY_VERSION,
PDP_POLICIES, PDP_PROPERTIES)
from policyhandler.pdp_api.policy_utils import PolicyUtils
from policyhandler.utils import Utils
_LOGGER = Utils.get_logger(__file__)
class MockPolicyEngine(object):
"""pretend this is the policy-engine"""
scope_prefix = "test_scope_prefix.pdp_desition_"
LOREM_IPSUM = """Lorem ipsum dolor sit amet consectetur ametist""".split()
LONG_TEXT = "0123456789" * 100
_policies = {}
_inited = False
@staticmethod
def init():
"""init collection of policies: policy_version = policy_index + 1"""
if MockPolicyEngine._inited:
return
MockPolicyEngine._inited = True
MockPolicyEngine._policies = dict(
(policy_id, MockPolicyEngine._create_policy_body(policy_id, policy_version))
for policy_id, policy_version in
[(MockPolicyEngine.get_policy_id(policy_index), policy_index + 1)
for policy_index in range(1 + len(MockPolicyEngine.LOREM_IPSUM))]
)
_LOGGER.info("_policies: %s", json.dumps(MockPolicyEngine._policies))
@staticmethod
def get_policy_id(policy_index):
"""get the policy_id by policy_index"""
return (MockPolicyEngine.scope_prefix
+ MockPolicyEngine.LOREM_IPSUM[
policy_index % len(MockPolicyEngine.LOREM_IPSUM)])
@staticmethod
def get_policy(policy_id):
"""find policy the way the policy-engine finds"""
if policy_id not in MockPolicyEngine._policies:
return {}
return {PDP_POLICIES: {policy_id: copy.deepcopy(MockPolicyEngine._policies[policy_id])}}
@staticmethod
def gen_policy_latest(policy_index, version_offset=0):
"""generate the policy response from policy-handler by policy_index = version - 1"""
policy_id = MockPolicyEngine.get_policy_id(policy_index)
policy = PolicyUtils.convert_to_policy(
MockPolicyEngine._create_policy_body(policy_id, policy_index + 1 - version_offset)
)
return policy_id, policy
@staticmethod
def _create_policy_body(policy_id, policy_version=1):
"""returns a fake policy-body"""
return {
"type": "unit.test.type.policies",
"version": "1.0.0",
PDP_METADATA: {
PDP_POLICY_ID: policy_id,
PDP_POLICY_VERSION: policy_version,
"description": "description for {}".format(policy_id)
},
PDP_PROPERTIES: {
"policy_updated_from_ver": (policy_version - 1),
"policy_updated_to_ver": policy_version,
"policy_hello": "world!",
"updated_policy_id": policy_id
}
}
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