synapse-old/tests/util/test_katriel_bodlaender.py

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# -*- coding: utf-8 -*-
# Copyright 2018 New Vector Ltd
#
# 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.
from synapse.util.katriel_bodlaender import InMemoryOrderedListStore
from tests import unittest
class KatrielBodlaenderTests(unittest.TestCase):
def test_simple_graph(self):
store = InMemoryOrderedListStore()
nodes = [
"node_1",
"node_2",
"node_3",
"node_4",
]
for node in nodes:
store.add_node(node)
store.add_edge("node_2", "node_3")
store.add_edge("node_1", "node_2")
store.add_edge("node_3", "node_4")
self.assertEqual(nodes, store.list)
def test_reverse_graph(self):
store = InMemoryOrderedListStore()
nodes = [
"node_1",
"node_2",
"node_3",
"node_4",
]
for node in nodes:
store.add_node(node)
store.add_edge("node_3", "node_2")
store.add_edge("node_2", "node_1")
store.add_edge("node_4", "node_3")
self.assertEqual(list(reversed(nodes)), store.list)