def test_3_should_be_multiply(self):
		operator = Operator(3)
		self.assertEqual('-', operator.toString())
 def test_3_should_be_multiply(self):
     operator = Operator(3)
     self.assertEqual('-', operator.toString())
	def test_1_should_be_plus(self):
		operator = Operator(1)
		self.assertEqual('+', operator.toString())
 def test_1_should_be_plus(self):
     operator = Operator(1)
     self.assertEqual('+', operator.toString())