You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
59 lines
1.7 KiB
59 lines
1.7 KiB
import antlr3
|
|
import testbase
|
|
import unittest
|
|
|
|
class t017parser(testbase.ANTLRTest):
|
|
def setUp(self):
|
|
self.compileGrammar()
|
|
|
|
def parserClass(self, base):
|
|
class TestParser(base):
|
|
def __init__(self, *args, **kwargs):
|
|
base.__init__(self, *args, **kwargs)
|
|
|
|
self.reportedErrors = []
|
|
|
|
|
|
def emitErrorMessage(self, msg):
|
|
self.reportedErrors.append(msg)
|
|
|
|
return TestParser
|
|
|
|
|
|
def testValid(self):
|
|
cStream = antlr3.StringStream("int foo;")
|
|
lexer = self.getLexer(cStream)
|
|
tStream = antlr3.CommonTokenStream(lexer)
|
|
parser = self.getParser(tStream)
|
|
parser.program()
|
|
|
|
assert len(parser.reportedErrors) == 0, parser.reportedErrors
|
|
|
|
|
|
def testMalformedInput1(self):
|
|
cStream = antlr3.StringStream('int foo() { 1+2 }')
|
|
lexer = self.getLexer(cStream)
|
|
tStream = antlr3.CommonTokenStream(lexer)
|
|
parser = self.getParser(tStream)
|
|
parser.program()
|
|
|
|
# FIXME: currently strings with formatted errors are collected
|
|
# can't check error locations yet
|
|
assert len(parser.reportedErrors) == 1, parser.reportedErrors
|
|
|
|
|
|
def testMalformedInput2(self):
|
|
cStream = antlr3.StringStream('int foo() { 1+; 1+2 }')
|
|
lexer = self.getLexer(cStream)
|
|
tStream = antlr3.CommonTokenStream(lexer)
|
|
parser = self.getParser(tStream)
|
|
parser.program()
|
|
|
|
# FIXME: currently strings with formatted errors are collected
|
|
# can't check error locations yet
|
|
assert len(parser.reportedErrors) == 2, parser.reportedErrors
|
|
|
|
|
|
if __name__ == '__main__':
|
|
unittest.main()
|