test_policy_runner.py

# Copyright 2017 Bloomberg Finance L.P.
#
# 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 pytest
import pkg_resources
from mock import MagicMock

from powerfulseal.policy import PolicyRunner


def test_default_policy_validates():
    assert PolicyRunner.is_policy_valid(PolicyRunner.DEFAULT_POLICY)


def test_example_config_validates():
    filename = pkg_resources.resource_filename("tests.policy", "example_config.yml")
    policy = PolicyRunner.load_file(filename)
    assert PolicyRunner.is_policy_valid(policy)


def test_parses_a_whole_config_correctly(monkeypatch):
    sleep_mock = MagicMock()
    monkeypatch.setattr("time.sleep", sleep_mock)
    filename = pkg_resources.resource_filename("tests.policy", "example_config2.yml")
    policy = PolicyRunner.load_file(filename)
    inventory = MagicMock()
    k8s_inventory = MagicMock()
    driver = MagicMock()
    executor = MagicMock()
    LOOPS = policy.get("config").get("loopsNumber")
    nodes, pods = PolicyRunner.run(policy, inventory, k8s_inventory, driver, executor)
    assert sleep_mock.call_count == LOOPS
    for call in sleep_mock.call_args_list:
        args, _ = call
        assert 77 <= args[0] <= 100
    assert inventory.sync.call_count == LOOPS
    assert len(nodes) == 2
    assert len(pods) == 1