xref: /aosp_15_r20/external/antlr/runtime/Python3/tests/t018llstar.py (revision 16467b971bd3e2009fad32dd79016f2c7e421deb)
1*16467b97STreehugger Robotimport antlr3
2*16467b97STreehugger Robotimport testbase
3*16467b97STreehugger Robotimport unittest
4*16467b97STreehugger Robotimport os
5*16467b97STreehugger Robotimport sys
6*16467b97STreehugger Robotfrom io import StringIO
7*16467b97STreehugger Robot
8*16467b97STreehugger Robotclass t018llstar(testbase.ANTLRTest):
9*16467b97STreehugger Robot    def setUp(self):
10*16467b97STreehugger Robot        self.compileGrammar()
11*16467b97STreehugger Robot
12*16467b97STreehugger Robot
13*16467b97STreehugger Robot    def testValid(self):
14*16467b97STreehugger Robot        inputPath = os.path.splitext(__file__)[0] + '.input'
15*16467b97STreehugger Robot        with open(inputPath) as f:
16*16467b97STreehugger Robot            cStream = antlr3.StringStream(f.read())
17*16467b97STreehugger Robot        lexer = self.getLexer(cStream)
18*16467b97STreehugger Robot        tStream = antlr3.CommonTokenStream(lexer)
19*16467b97STreehugger Robot        parser = self.getParser(tStream)
20*16467b97STreehugger Robot        parser.program()
21*16467b97STreehugger Robot
22*16467b97STreehugger Robot        output = parser.output.getvalue()
23*16467b97STreehugger Robot
24*16467b97STreehugger Robot        outputPath = os.path.splitext(__file__)[0] + '.output'
25*16467b97STreehugger Robot        with open(outputPath) as f:
26*16467b97STreehugger Robot            testOutput = f.read()
27*16467b97STreehugger Robot
28*16467b97STreehugger Robot        self.assertEqual(output, testOutput)
29*16467b97STreehugger Robot
30*16467b97STreehugger Robotif __name__ == '__main__':
31*16467b97STreehugger Robot    unittest.main()
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