public void TestMultipleOfReturn()
{
var mathsHelper = new MathsHelper();
var number1 = 3;
var number2 = 4;
var number3 = 5;
var number4 = 15;
var result1 = mathsHelper.MultipleOf3or5orBoth(number1);
var result2 = mathsHelper.MultipleOf3or5orBoth(number2);
var result3 = mathsHelper.MultipleOf3or5orBoth(number3);
var result4 = mathsHelper.MultipleOf3or5orBoth(number4);
Assert.Equal(3, result1);
Assert.Equal(0, result2);
Assert.Equal(5, result3);
Assert.Equal(15, result4);
}
