xref: /aosp_15_r20/external/antlr/runtime/Python3/tests/t039labels.py (revision 16467b971bd3e2009fad32dd79016f2c7e421deb)

import antlr3
import testbase
import unittest


class t039labels(testbase.ANTLRTest):
    def setUp(self):
        self.compileGrammar()


    def lexerClass(self, base):
        class TLexer(base):
            def recover(self, input, re):
                # no error recovery yet, just crash!
                raise

        return TLexer


    def parserClass(self, base):
        class TParser(base):
            def recover(self, input, re):
                # no error recovery yet, just crash!
                raise

        return TParser


    def testValid1(self):
        cStream = antlr3.StringStream(
            'a, b, c, 1, 2 A FOOBAR GNU1 A BLARZ'
            )

        lexer = self.getLexer(cStream)
        tStream = antlr3.CommonTokenStream(lexer)
        parser = self.getParser(tStream)
        ids, w = parser.a()

        self.assertEqual(len(ids), 6, ids)
        self.assertEqual(ids[0].text, 'a', ids[0])
        self.assertEqual(ids[1].text, 'b', ids[1])
        self.assertEqual(ids[2].text, 'c', ids[2])
        self.assertEqual(ids[3].text, '1', ids[3])
        self.assertEqual(ids[4].text, '2', ids[4])
        self.assertEqual(ids[5].text, 'A', ids[5])

        self.assertEqual(w.text, 'GNU1', w)


if __name__ == '__main__':
    unittest.main()