public void Test_Sum_InputTheSecondAreThirdParamsAreEqual_ExpectedReturnsTheFirstdParamValue()
{
var unique = new SumUnique();
var expected = -1;
var actual = unique.Sum(3, -1, 3);
Assert.AreEqual(expected, actual);
}
public void Test_Sum_InputUniqueArguments_ExpectedTheSumOfThreeParams()
{
var unique = new SumUnique();
var expected = 6;
var actual = unique.Sum(1, 2, 3);
Assert.AreEqual(expected, actual);
}