public void ValidInput_ReturnAorB()
        {
            MyService myService = new MyService();
            var       result    = myService.ReturnAorB(52);

            Assert.AreEqual("A", result);
        }
 public void InputLessThan1_ReturnAorB()
 {
     MyService myService = new MyService();
     var       result    = myService.ReturnAorB(-2);
 }
 public void NullInput_ReturnAorB()
 {
     MyService myService = new MyService();
     var       result    = myService.ReturnAorB(null);
 }
 public string WhatItReturns(int?input)
 {
     return(_service.ReturnAorB(input));
 }