'Wrap L{verifyConstructorArgument} to provide simpler interface for
testing Message and _EDNSMessage constructor arguments.
@param argName: The name of the constructor argument.
@param defaultVal: The expected default value.
@param altVal: An alternative value which is expected to be assigned to
a correspondingly named attribute.'

def _verifyConstructorArgument(self, argName, defaultVal, altVal):

    verifyConstructorArgument(testCase=self, cls=self.messageFactory, argName=argName, defaultVal=defaultVal, altVal=altVal)
