gns3-server/tests/compute/iou/utils/test_application_id.py

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# -*- coding: utf-8 -*-
#
# Copyright (C) 2017 GNS3 Technologies Inc.
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
import pytest
from unittest.mock import MagicMock
from gns3server.compute.iou.utils.application_id import get_next_application_id, IOUError
def test_get_next_application_id():
# test first node
assert get_next_application_id([]) == 1
# test second node
nodes = [
MagicMock(node_type='different'),
MagicMock(node_type='iou', properties=dict(application_id=1))
]
assert get_next_application_id(nodes) == 2
# test reach out the limit
nodes = [MagicMock(node_type='iou', properties=dict(application_id=i)) for i in range(1, 512)]
with pytest.raises(IOUError):
get_next_application_id(nodes)