# 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 fixtures

from nova.tests.unit import fake_notifier


class NotificationFixture(fixtures.Fixture):
    def __init__(self, test):
        self.test = test

    def setUp(self):
        super().setUp()
        self.addCleanup(fake_notifier.reset)
        fake_notifier.stub_notifier(self.test)

    def reset(self):
        fake_notifier.reset()

    def wait_for_versioned_notifications(
        self, event_type, n_events=1, timeout=10.0,
    ):
        return fake_notifier.VERSIONED_SUBS[event_type].wait_n(
            n_events, event_type, timeout,
        )

    @property
    def versioned_notifications(self):
        return fake_notifier.VERSIONED_NOTIFICATIONS