def testSanity(self):                    
		"""fromNegative(toNegative(n))==n for all n"""
		for integer in range(1, 100):       
			numeral = negative.toNegative(integer) 
			result = negative.fromNegative(numeral)
			self.assertEqual(integer, result)
def testToNegativeKnownValues(self):                          
	"""toneagtive should give known result with known input"""
	for integer,numeral in self.knownValues:              
		result = negative.toNegative(integer)                    
		self.assertEqual(numeral, result)