import sys
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import unittest
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import antlr3
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class TestBaseRecognizer(unittest.TestCase):
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"""Tests for BaseRecognizer class"""
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def testGetRuleInvocationStack(self):
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"""BaseRecognizer._getRuleInvocationStack()"""
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rules = antlr3.BaseRecognizer._getRuleInvocationStack(__name__)
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self.failUnlessEqual(
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rules,
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['testGetRuleInvocationStack']
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)
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class TestTokenSource(unittest.TestCase):
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"""Testcase to the antlr3.TokenSource class"""
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def testIteratorInterface(self):
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"""TokenSource.next()"""
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class TrivialToken(object):
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def __init__(self, type):
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self.type = type
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class TestSource(antlr3.TokenSource):
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def __init__(self):
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self.tokens = [
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TrivialToken(1),
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TrivialToken(2),
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TrivialToken(3),
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TrivialToken(4),
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TrivialToken(antlr3.EOF),
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]
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def nextToken(self):
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return self.tokens.pop(0)
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src = TestSource()
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tokens = []
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for token in src:
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tokens.append(token.type)
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self.failUnlessEqual(tokens, [1, 2, 3, 4])
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class TestLexer(unittest.TestCase):
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def testInit(self):
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"""Lexer.__init__()"""
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class TLexer(antlr3.Lexer):
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api_version = 'HEAD'
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stream = antlr3.StringStream('foo')
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TLexer(stream)
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if __name__ == "__main__":
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unittest.main(testRunner=unittest.TextTestRunner(verbosity=2))
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