Python rpn_calculate Examples

Example #1

 def test_sqrt_of_one_number(self):
     expr = '9 SQRT'
     self.assertEqual(rpn_calculate(expr), 3)

Example #2

 def test_when_only_one_number_is_passed_then_return_the_same_digit(self):
     expr = '45'
     self.assertEqual(rpn_calculate(expr), 45)