public void RuleThatAlwaysFiresTest()
{
var underTest = new ProductionRuleEngine <TestContext>(new List <IProductionRule <TestContext> >()
{
new RuleThatAlwaysFires()
});
var blankContext = new TestContext();
underTest.Run(blankContext);
Assert.IsTrue(blankContext.IsHot == false);
}
public void NoInferenceOnNullValues()
{
var underTest = new ProductionRuleEngine <TestContext>(new List <IProductionRule <TestContext> >()
{
new TestRule()
});
var blankContext = new TestContext();
underTest.Run(blankContext);
Assert.IsTrue(blankContext.IsHappy.HasValue == false);
}
public void ReEvaluateRule()
{
var underTest = new ProductionRuleEngine <TestContext>(new List <IProductionRule <TestContext> >()
{
new WhenHappyRule(), new WhenBirdsSingingRule()
});
var context = new TestContext()
{
IsSunShining = false, IsDawn = true
};
underTest.Run(context);
Assert.IsTrue(context.IsHappy == true);
}
public void HigherSalienceRulesOverride()
{
var underTest = new ProductionRuleEngine <TestContext>(new List <IProductionRule <TestContext> >()
{
new TestRule(), new ConflictingRule1()
});
var blankContext = new TestContext()
{
IsSunShining = false
};
underTest.Run(blankContext);
Assert.IsTrue(blankContext.IsHappy == true);
}
public void Inference()
{
var underTest = new ProductionRuleEngine <TestContext>(new List <IProductionRule <TestContext> >()
{
new TestRule()
});
var blankContext = new TestContext()
{
IsSunShining = true
};
underTest.Run(blankContext);
Assert.IsTrue(blankContext.IsHappy == true);
}
static void Main(string[] args)
{
var context = new Context();
// rules
var re = new ProductionRuleEngine <Context>(new List <IProductionRule <Context> >()
{
new SunShiningRule(), new SuperNovaRule()
});
var screen1 = new SimpleWizard.QuestionScreen <Context>()
{
QuestionText = "Shining?",
QuestionType = typeof(bool),
ReflectAnswer = (a, c) => c.IsSunShining = (bool)a
};
var screen2 = new SimpleWizard.QuestionScreen <Context>()
{
QuestionText = "Likes sun?",
QuestionType = typeof(bool),
ReflectAnswer = (a, c) => c.PersonLikesSun = (bool)a
};
var screen3 = new QuestionScreen <Context>()
{
QuestionText = "Sun gone nova?",
QuestionType = typeof(bool),
ReflectAnswer = (a, c) => c.SunGoneNova = (bool)a
};
var edge = new ScreenLink <Context>()
{
Source = screen1, Target = screen2, TraverseCondition = c => !c.IsPersonHappy.HasValue
};
var edge2 = new ScreenLink <Context>()
{
Source = screen2, Target = screen3, TraverseCondition = c => c.IsPersonHappy == true
};
var wm = new WizardManager <Context>(new[] { screen1, screen2, screen3 }, new[] { edge, edge2 }, c => re.Run(c));
var cc = new ConsoleWizardClient <Context>(wm, context);
cc.Start();
var outcome = context.IsPersonHappy;
Console.WriteLine("Outcome: " + outcome);
Console.ReadKey();
}
public void TestTracing()
{
var underTest = new ProductionRuleEngine <TestContext>(new List <IProductionRule <TestContext> >()
{
new TestRule()
});
var blankContext = new TestContext()
{
IsSunShining = true
};
underTest.Run(blankContext);
var log = underTest.Log;
Assert.IsTrue(log.Count() == 1);
Assert.IsTrue(log.First().Before.IsHappy.HasValue == false);
Assert.IsTrue(log.First().After.IsHappy.HasValue == true);
}
