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import antlr3
import testbase
import unittest
import textwrap
class t022scopes(testbase.ANTLRTest):
def setUp(self):
self.compileGrammar()
def parserClass(self, base):
class TParser(base):
def emitErrorMessage(self, msg):
# report errors to /dev/null
pass
def reportError(self, re):
# no error recovery yet, just crash!
raise re
return TParser
def testa1(self):
cStream = antlr3.StringStream('foobar')
lexer = self.getLexer(cStream)
tStream = antlr3.CommonTokenStream(lexer)
parser = self.getParser(tStream)
parser.a()
def testb1(self):
cStream = antlr3.StringStream('foobar')
lexer = self.getLexer(cStream)
tStream = antlr3.CommonTokenStream(lexer)
parser = self.getParser(tStream)
try:
parser.b(False)
self.fail()
except antlr3.RecognitionException:
pass
def testb2(self):
cStream = antlr3.StringStream('foobar')
lexer = self.getLexer(cStream)
tStream = antlr3.CommonTokenStream(lexer)
parser = self.getParser(tStream)
parser.b(True)
def testc1(self):
cStream = antlr3.StringStream(
textwrap.dedent('''\
{
int i;
int j;
i = 0;
}
'''))
lexer = self.getLexer(cStream)
tStream = antlr3.CommonTokenStream(lexer)
parser = self.getParser(tStream)
symbols = parser.c()
self.failUnlessEqual(
symbols,
set(['i', 'j'])
)
def testc2(self):
cStream = antlr3.StringStream(
textwrap.dedent('''\
{
int i;
int j;
i = 0;
x = 4;
}
'''))
lexer = self.getLexer(cStream)
tStream = antlr3.CommonTokenStream(lexer)
parser = self.getParser(tStream)
try:
parser.c()
self.fail()
except RuntimeError, exc:
self.failUnlessEqual(exc.args[0], 'x')
def testd1(self):
cStream = antlr3.StringStream(
textwrap.dedent('''\
{
int i;
int j;
i = 0;
{
int i;
int x;
x = 5;
}
}
'''))
lexer = self.getLexer(cStream)
tStream = antlr3.CommonTokenStream(lexer)
parser = self.getParser(tStream)
symbols = parser.d()
self.failUnlessEqual(
symbols,
set(['i', 'j'])
)
def teste1(self):
cStream = antlr3.StringStream(
textwrap.dedent('''\
{ { { { 12 } } } }
'''))
lexer = self.getLexer(cStream)
tStream = antlr3.CommonTokenStream(lexer)
parser = self.getParser(tStream)
res = parser.e()
self.failUnlessEqual(res, 12)
def testf1(self):
cStream = antlr3.StringStream(
textwrap.dedent('''\
{ { { { 12 } } } }
'''))
lexer = self.getLexer(cStream)
tStream = antlr3.CommonTokenStream(lexer)
parser = self.getParser(tStream)
res = parser.f()
self.failUnlessEqual(res, None)
def testf2(self):
cStream = antlr3.StringStream(
textwrap.dedent('''\
{ { 12 } }
'''))
lexer = self.getLexer(cStream)
tStream = antlr3.CommonTokenStream(lexer)
parser = self.getParser(tStream)
res = parser.f()
self.failUnlessEqual(res, None)
if __name__ == '__main__':
unittest.main()
|
