public void RightOperand_WhenInputIs1119_ShouldBeNine()
{
Captcha captcha = new Captcha(1, 1, 1, 9);
String operand = captcha.RightOperand();
Assert.AreEqual("Nine", operand);
}
public void RightOperand_WhenInputIs1118_ShouldBeEight()
{
Captcha captcha = new Captcha(1, 1, 1, 8);
String operand = captcha.RightOperand();
Assert.AreEqual("Eight", operand);
}