t039labels.py revision 324c4644fee44b9898524c09511bd33c3f12e2df 
1import antlr3
2import testbase
3import unittest
4
5
6class t039labels(testbase.ANTLRTest):
7    def setUp(self):
8        self.compileGrammar()
9
10
11    def lexerClass(self, base):
12        class TLexer(base):
13            def recover(self, input, re):
14                # no error recovery yet, just crash!
15                raise
16
17        return TLexer
18
19
20    def parserClass(self, base):
21        class TParser(base):
22            def recover(self, input, re):
23                # no error recovery yet, just crash!
24                raise
25
26        return TParser
27
28
29    def testValid1(self):
30        cStream = antlr3.StringStream(
31            'a, b, c, 1, 2 A FOOBAR GNU1 A BLARZ'
32            )
33
34        lexer = self.getLexer(cStream)
35        tStream = antlr3.CommonTokenStream(lexer)
36        parser = self.getParser(tStream)
37        ids, w = parser.a()
38
39        assert len(ids) == 6, ids
40        assert ids[0].text == 'a', ids[0]
41        assert ids[1].text == 'b', ids[1]
42        assert ids[2].text == 'c', ids[2]
43        assert ids[3].text == '1', ids[3]
44        assert ids[4].text == '2', ids[4]
45        assert ids[5].text == 'A', ids[5]
46
47        assert w.text == 'GNU1', w
48
49
50if __name__ == '__main__':
51    unittest.main()
52
53
54