38 lines
1.2 KiB
Python
38 lines
1.2 KiB
Python
# Copyright (C) 2018-2021 Intel Corporation
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# SPDX-License-Identifier: Apache-2.0
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import unittest
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from extensions.middle.AddIsCyclicAttribute import AddIsCyclicAttribute
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from mo.utils.unittest.graph import build_graph_with_attrs
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class AddIsCyclicAttributeTest(unittest.TestCase):
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nodes = [('node_1', {}),
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('node_2', {})]
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edges = [('node_1', 'node_2')]
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def test_1(self):
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"""
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Acyclic case => graph.graph['is_cyclic'] should be False.
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"""
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graph = build_graph_with_attrs(nodes_with_attrs=self.nodes,
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edges_with_attrs=self.edges)
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tested_pass = AddIsCyclicAttribute()
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tested_pass.find_and_replace_pattern(graph)
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assert graph.graph['is_cyclic'] is False
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def test_2(self):
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"""
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Cyclic case => graph.graph['is_cyclic'] should be True.
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:return:
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"""
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graph = build_graph_with_attrs(nodes_with_attrs=self.nodes,
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edges_with_attrs=self.edges,
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new_edges_with_attrs=[('node_2', 'node_1')])
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tested_pass = AddIsCyclicAttribute()
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tested_pass.find_and_replace_pattern(graph)
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assert graph.graph['is_cyclic'] is True
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