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comparison test/test_burm.py @ 321:8c569fbe60e4

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Load yacc and burg dynamic
author Windel Bouwman
date Sun, 19 Jan 2014 18:48:45 +0100
parents python/test_burm.py@8d07a4254f04
children
comparison
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320:84d67cce67b7 321:8c569fbe60e4
1 import unittest
2 import io
3 import argparse
4
5 from tree import Tree
6 import pyburg
7
8
9 class testBURG(unittest.TestCase):
10 def testSample4(self):
11 """ Test sample4 burg system """
12 # Generate matcher from spec:
13 buf = io.StringIO()
14 args = argparse.Namespace(source=open('sample4.brg'), output=buf)
15 pyburg.main(args)
16
17 # Execute generated script into global scope:
18 exec(buf.getvalue(), globals())
19
20 # Sample tree:
21 t = Tree('ASGNI',
22 Tree('ADDRLP'),
23 Tree('ADDI',
24 Tree('CVCI', Tree('INDIRC', Tree('ADDRLP'))),
25 Tree('CNSTI')
26 )
27 )
28
29 # Subclass generated matcher:
30 class MyMatcher(Matcher):
31 def __init__(self):
32 super().__init__()
33 self.trace = []
34
35 def tr(self, r):
36 self.trace.append(r)
37
38 # Match tree:
39 mm = MyMatcher()
40 mm.gen(t)
41 self.assertSequenceEqual([8,8,4,11,9,3,1], mm.trace)
42
43 if __name__ == '__main__':
44 unittest.main()