xos/synchronizers/new_base/tests/test_load.py

# Copyright 2017-present Open Networking Foundation
#
# 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 unittest
from mock import patch
import mock
import pdb
import networkx as nx

import os
import sys

test_path = os.path.abspath(os.path.dirname(os.path.realpath(__file__)))
xos_dir = os.path.join(test_path, "..", "..", "..")


class TestScheduling(unittest.TestCase):
    def setUp(self):
        self.sys_path_save = sys.path
        self.cwd_save = os.getcwd()
        sys.path.append(xos_dir)
        sys.path.append(os.path.join(xos_dir, "synchronizers", "new_base"))
        sys.path.append(
            os.path.join(xos_dir, "synchronizers", "new_base", "tests", "steps")
        )

        config = os.path.join(test_path, "test_config.yaml")
        from xosconfig import Config

        Config.clear()
        Config.init(config, "synchronizer-config-schema.yaml")

        from synchronizers.new_base.mock_modelaccessor_build import (
            build_mock_modelaccessor,
        )

        build_mock_modelaccessor(xos_dir, services_dir=None, service_xprotos=[])

        os.chdir(os.path.join(test_path, ".."))  # config references tests/model-deps

        import event_loop

        reload(event_loop)
        import backend

        reload(backend)

        # self.policy = TenantWithContainerPolicy()
        # self.user = User(email="testadmin@test.org")
        # self.tenant = Tenant(creator=self.user)
        # self.flavor = Flavor(name="m1.small")
        # model_policy_tenantwithcontainer.Instance = Instance
        # model_policy_tenantwithcontainer.Flavor = Flavor

        b = backend.Backend()
        steps_dir = Config.get("steps_dir")
        self.steps = b.load_sync_step_modules(steps_dir)
        self.synchronizer = event_loop.XOSObserver(self.steps)

    def tearDown(self):
        sys.path = self.sys_path_save
        os.chdir(self.cwd_save)

    def test_load_steps(self):
        step_names = [s.__name__ for s in self.steps]
        self.assertIn("SyncControllerSlices", step_names)

    def test_load_deps(self):
        self.synchronizer.load_dependency_graph()
        graph = self.synchronizer.model_dependency_graph
        self.assertTrue(graph[False].has_edge("Instance", "Slice"))
        self.assertTrue(graph[True].has_edge("Slice", "Instance"))
        self.assertTrue(graph[False].has_edge("Slice", "ControllerSlice"))
        self.assertTrue(graph[True].has_edge("ControllerSlice", "Slice"))

    def test_load_dep_accessors(self):
        self.synchronizer.load_dependency_graph()
        graph = self.synchronizer.model_dependency_graph
        self.assertDictContainsSubset(
            {"src_accessor": "controllerslices"},
            graph[False]["Slice"]["ControllerSlice"],
        )
        self.assertDictContainsSubset(
            {"src_accessor": "slice", "dst_accessor": "controllerslices"},
            graph[True]["Slice"]["ControllerSlice"],
        )

    def test_load_sync_steps(self):
        self.synchronizer.load_sync_steps()
        model_to_step = self.synchronizer.model_to_step
        step_lookup = self.synchronizer.step_lookup
        self.assertIn(
            ("ControllerSlice", ["SyncControllerSlices"]), model_to_step.items()
        )
        self.assertIn(("SiteRole", ["SyncRoles"]), model_to_step.items())

        for k, v in model_to_step.items():
            val = v[0]
            observes = step_lookup[val].observes
            if not isinstance(observes, list):
                observes = [observes]

            observed_names = [o.__name__ for o in observes]
            self.assertIn(k, observed_names)


if __name__ == "__main__":
    unittest.main()