Mercurial > lcfOS

comparison python/testpyy.py @ 191:6b2bec5653f1

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Added assembler testset
author Windel Bouwman
date Sun, 26 May 2013 15:28:07 +0200
parents 51a6440d6398
children 6cd6260789a1
comparison
equal deleted inserted replaced
190:65dda7e7e8bd 191:6b2bec5653f1
1 import unittest, pprint 1 import unittest, pprint
2 from pyyacc import Grammar, Item, EOF 2 from pyyacc import Grammar, Item, EOF
3 from ppci import Token
3 4
5 def genTokens(lst):
6 for t in lst:
7 yield Token(t, t, 0)
4 8
5 class testLR(unittest.TestCase): 9 class testLR(unittest.TestCase):
6 def setUp(self): 10 def setUp(self):
7 pass 11 pass
8 12
16 g.add_production('term', ['term', '*', 'factor']) 20 g.add_production('term', ['term', '*', 'factor'])
17 g.add_production('factor', ['(', 'expression', ')']) 21 g.add_production('factor', ['(', 'expression', ')'])
18 g.add_production('factor', ['identifier']) 22 g.add_production('factor', ['identifier'])
19 g.start_symbol = 'input' 23 g.start_symbol = 'input'
20 # 2. define input: 24 # 2. define input:
21 tokens = ['identifier', '+', 'identifier', '+', 'identifier', 'EOF'] 25 tokens = genTokens(['identifier', '+', 'identifier', '+', 'identifier'])
22 # 3. build parser: 26 # 3. build parser:
23 p = g.genParser() 27 p = g.genParser()
24 # 4. feed input: 28 # 4. feed input:
25 p.parse(tokens) 29 p.parse(tokens)
26 30
106 self.assertIn(Item(p3, 0, '('), s0) 110 self.assertIn(Item(p3, 0, '('), s0)
107 self.assertIn(Item(p4, 0, EOF), s0) 111 self.assertIn(Item(p4, 0, EOF), s0)
108 self.assertIn(Item(p4, 0, '('), s0) 112 self.assertIn(Item(p4, 0, '('), s0)
109 113
110 def testParser(self): 114 def testParser(self):
111 tokens = ['(', '(', ')', ')', '(', ')', EOF] 115 tokens = ['(', '(', ')', ')', '(', ')']
112 # 3. build parser: 116 # 3. build parser:
113 p = self.g.genParser() 117 p = self.g.genParser()
114 self.assertEqual(len(p.goto_table), 5) 118 self.assertEqual(len(p.goto_table), 5)
115 self.assertEqual(len(p.action_table), 19) 119 self.assertEqual(len(p.action_table), 19)
116 120
117 # 4. feed input: 121 # 4. feed input:
118 p.parse(tokens) 122 p.parse(genTokens(tokens))
119 123
120 if __name__ == '__main__': 124 if __name__ == '__main__':
121 unittest.main() 125 unittest.main()
122 126
123 127