xref: /aosp_15_r20/external/antlr/runtime/Python/tests/t013parser.py (revision 16467b971bd3e2009fad32dd79016f2c7e421deb)
1*16467b97STreehugger Robotimport antlr3
2*16467b97STreehugger Robotimport testbase
3*16467b97STreehugger Robotimport unittest
4*16467b97STreehugger Robot
5*16467b97STreehugger Robotclass t013parser(testbase.ANTLRTest):
6*16467b97STreehugger Robot    def setUp(self):
7*16467b97STreehugger Robot        self.compileGrammar()
8*16467b97STreehugger Robot
9*16467b97STreehugger Robot
10*16467b97STreehugger Robot    def testValid(self):
11*16467b97STreehugger Robot        cStream = antlr3.StringStream('foobar')
12*16467b97STreehugger Robot        lexer = self.getLexer(cStream)
13*16467b97STreehugger Robot        tStream = antlr3.CommonTokenStream(lexer)
14*16467b97STreehugger Robot        parser = self.getParser(tStream)
15*16467b97STreehugger Robot        parser.document()
16*16467b97STreehugger Robot
17*16467b97STreehugger Robot        assert len(parser.reportedErrors) == 0, parser.reportedErrors
18*16467b97STreehugger Robot        assert parser.identifiers == ['foobar']
19*16467b97STreehugger Robot
20*16467b97STreehugger Robot
21*16467b97STreehugger Robot    def testMalformedInput1(self):
22*16467b97STreehugger Robot        cStream = antlr3.StringStream('')
23*16467b97STreehugger Robot        lexer = self.getLexer(cStream)
24*16467b97STreehugger Robot        tStream = antlr3.CommonTokenStream(lexer)
25*16467b97STreehugger Robot        parser = self.getParser(tStream)
26*16467b97STreehugger Robot
27*16467b97STreehugger Robot        parser.document()
28*16467b97STreehugger Robot
29*16467b97STreehugger Robot        # FIXME: currently strings with formatted errors are collected
30*16467b97STreehugger Robot        # can't check error locations yet
31*16467b97STreehugger Robot        assert len(parser.reportedErrors) == 1, parser.reportedErrors
32*16467b97STreehugger Robot
33*16467b97STreehugger Robot
34*16467b97STreehugger Robotif __name__ == '__main__':
35*16467b97STreehugger Robot    unittest.main()
36