public void Sum()
{
//Arrange
int[] numbers = new int[2];
Assert.AreEqual(0, CalculatorTest.Sum(numbers));
numbers[0] = 7;
Assert.AreEqual(7, CalculatorTest.Sum(numbers));
numbers[0] = 7;
numbers[1] = 11;
Assert.AreEqual(18, CalculatorTest.Sum(numbers));
}
public void Add()
{
Assert.AreEqual(0, CalculatorTest.Add(0, 0));
Assert.AreEqual(4, CalculatorTest.Add(2, 2));
Assert.AreEqual(8, CalculatorTest.Add(2, 6));
}
public void Subtract()
{
Assert.AreEqual(6, CalculatorTest.Subtract(10, 4));
}