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77 lines
2.1 KiB
77 lines
2.1 KiB
4 months ago
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import antlr3
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import testbase
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import unittest
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import os
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import sys
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from cStringIO import StringIO
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import difflib
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class t018llstar(testbase.ANTLRTest):
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def setUp(self):
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self.compileGrammar()
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def testValid(self):
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inputPath = os.path.splitext(__file__)[0] + '.input'
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cStream = antlr3.StringStream(open(inputPath).read())
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lexer = self.getLexer(cStream)
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tStream = antlr3.CommonTokenStream(lexer)
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parser = self.getParser(tStream)
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parser.program()
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output = parser.output.getvalue()
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outputPath = os.path.splitext(__file__)[0] + '.output'
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testOutput = open(outputPath).read()
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success = (output == testOutput)
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if not success:
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d = difflib.Differ()
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r = d.compare(output.splitlines(1), testOutput.splitlines(1))
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self.fail(
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''.join([l.encode('ascii', 'backslashreplace') for l in r])
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)
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if __name__ == '__main__':
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unittest.main()
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## # run an infinite loop with randomly mangled input
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## while True:
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## print "ping"
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## input = open(inputPath).read()
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## import random
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## input = list(input) # make it mutable
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## for _ in range(3):
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## p1 = random.randrange(len(input))
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## p2 = random.randrange(len(input))
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## c1 = input[p1]
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## input[p1] = input[p2]
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## input[p2] = c1
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## input = ''.join(input) # back to string
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## try:
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## cStream = antlr3.StringStream(input)
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## lexer = Lexer(cStream)
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## tStream = antlr3.CommonTokenStream(lexer)
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## parser = TestParser(tStream)
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## parser.program()
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## except antlr3.RecognitionException, exc:
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## print exc
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## for l in input.splitlines()[0:exc.line]:
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## print l
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## print ' '*exc.charPositionInLine + '^'
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## except BaseException, exc:
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## print '\n'.join(['%02d: %s' % (idx+1, l) for idx, l in enumerate(input.splitlines())])
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## print "%s at %d:%d" % (exc, cStream.line, cStream.charPositionInLine)
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## print
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## raise
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