98 lines
2.7 KiB
Python
98 lines
2.7 KiB
Python
#!/usr/bin/env python2
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# -*- coding: utf-8 -*-
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try:
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import unittest2 as unittest
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except ImportError:
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import unittest
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import os
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import sys
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from pungi.graph import SimpleAcyclicOrientedGraph
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sys.path.insert(0, os.path.join(os.path.dirname(__file__), '..'))
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class SimpleAcyclicOrientedGraphTestCase(unittest.TestCase):
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def setUp(self):
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self.g = SimpleAcyclicOrientedGraph()
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def test_simple_graph(self):
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graph_data = (
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('Client', 'Base'),
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('Server', 'Base'),
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('Workstation', 'Base'),
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)
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for start, end in graph_data:
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self.g.add_edge(start, end)
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spanning_line = self.g.prune_graph()
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self.assertEqual(4, len(spanning_line))
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# 'Base' as a lookaside should be at the end of the spanning line, order of others is not crucial
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self.assertEqual("Base", spanning_line[-1])
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def test_complex_graph(self):
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graph_data = (
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('1', '3'), # 1 --> 3 --> 4 --> 5 ...
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('3', '4'),
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('4', '5'),
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('4', '6'),
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('2', '4'),
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('7', '6'),
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('6', '5'),
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)
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for start, end in graph_data:
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self.g.add_edge(start, end)
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spanning_line = self.g.prune_graph()
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# spanning line have to match completely to given graph
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self.assertEqual(['1', '3', '2', '4', '7', '6', '5'], spanning_line)
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def test_cyclic_graph(self):
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graph_data = (
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('1', '2'),
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('2', '3'),
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('3', '1'),
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)
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with self.assertRaises(ValueError):
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for start, end in graph_data:
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self.g.add_edge(start, end)
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def test_two_separate_graph_lines(self):
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graph_data = (
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('1', '3'), # 1st graph
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('3', '2'), # 1st graph
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('6', '5'), # 2nd graph
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)
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for start, end in graph_data:
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self.g.add_edge(start, end)
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spanning_line = self.g.prune_graph()
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spanning_line_str = ''.join(spanning_line)
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self.assertEqual(5, len(spanning_line))
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# Particular parts should match. Order of these parts is not crucial.
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self.assertTrue(
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"132" in spanning_line_str and "65" in spanning_line_str,
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"Spanning line '%s' does not match to graphs" % spanning_line_str
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)
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def alternative_route_in_graph(self):
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graph_data = (
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('1', '3'),
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('3', '2'),
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('1', '2'),
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)
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for start, end in graph_data:
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self.g.add_edge(start, end)
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spanning_line = self.g.prune_graph()
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# spanning line have to match completely to given graph
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self.assertEqual(['1', '3', '2'], spanning_line)
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