public void TestSum()
{
var sut = new Summarizer();
int actualSum = sut.CalculateSum(12, 30);
Assert.AreEqual(42, actualSum);
actualSum = sut.CalculateSum(52, -10);
Assert.AreEqual(42, actualSum);
actualSum = sut.CalculateSum(42, 0);
Assert.AreEqual(42, actualSum);
}
public void PositiveZeroSummationSucceeds()
{
var sut = new Summarizer();
int actualSum = sut.CalculateSum(42, 0);
Assert.AreEqual(42, actualSum);
}