public void ProcessNumber_Should_Evaluate_Custom_Rule()
{
var fizzBuzz = new RulesEngine();
const string textForMatches = "FOUR!";
var result = fizzBuzz.ProcessNumber(4, ((x) => x == 4), textForMatches);
Assert.AreEqual("even " + textForMatches, result);
}
public void ProcessNumber_Should_Bypass_Default_Rules_If_Apply_Default_Rules_IsFalse()
{
var fizzBuzz = new RulesEngine();
const string textForMatches = "FOUR!";
var result = fizzBuzz.ProcessNumber(4, ((x) => x == 4), textForMatches, false);
Assert.AreEqual(textForMatches, result);
}
public void ProcessNumber_Should_Evaluate_Multiple_Custom_Rules()
{
var fizzBuzz = new RulesEngine();
const string textForMatches4 = "FOUR!";
const string textForGreaterThan3 = "GREATER_THAN_THREE";
var rules = new Dictionary<NumberRule, string>()
{
{(x) => x == 4, textForMatches4},
{(x) => x > 3, textForGreaterThan3}
};
var result = fizzBuzz.ProcessNumber(4, rules);
Assert.AreEqual("even " + textForMatches4 + " " + textForGreaterThan3, result);
}
public void ProcessNumber_Should_Return_Odd_For_1()
{
var fizzBuzz = new RulesEngine();
var result = fizzBuzz.ProcessNumber(1);
Assert.AreEqual("odd", result);
}
public void ProcessNumber_Should_Return_Even_For_4()
{
var fizzBuzz = new RulesEngine();
var result = fizzBuzz.ProcessNumber(4);
Assert.AreEqual("even", result);
}