public void Operator_ShouldThrowException_WhenInputInvalidOperator()
{
Captcha captcha = new Captcha(1, 1, 4, 1);
Assert.Throws(typeof(InvalidFormatOperatorException),
delegate { captcha.GetOperator(); });
}
public void Operator_ShouldBePlus_WhenInputIs1()
{
Captcha captcha = new Captcha(1, 1, 1, 1);
Assert.AreEqual("+", captcha.GetOperator());
}
public void Operator_ShouldBeMultiply_WhenInputIs2()
{
Captcha captcha = new Captcha(1, 1, 2, 1);
Assert.AreEqual("*", captcha.GetOperator());
}
public void Operator_ShouldBeMinus_WhenInputIs3()
{
Captcha captcha = new Captcha(1, 1, 3, 1);
Assert.AreEqual("-", captcha.GetOperator());
}