public void PassingNullThrowsNullReferenceException()
{
// Arrange
var thrower = new Thrower();
// Act
Action action = () => thrower.GetStringLengthOrThrowIfNull(null);
// Assert
Assert.Throws <NullReferenceException>(action);
}
public void ReturnsFourWhichIsTheStringLength()
{
// Arrange
const string value = "four";
var thrower = new Thrower();
// Act
var result = thrower.GetStringLengthOrThrowIfNull(value);
// Assert
Assert.Equal(4, result);
}