public void RuleContext_ShouldReturnTheHighestPriorityBasedOnIConsequencePrioritizer_WhenMultipleRulesAreTriggered()
{
//Setup
Func <SampleFact, bool> cond = x => x.SampleInt == 0;
Func <SampleFact, SampleOutput> cons = y => new SampleOutput(3);
var sampleRule1 = GetSampleRule(cond, cons);
var sampleRule2 = GetSampleRule(cond, y => new SampleOutput(4));
var sampleFact = new SampleFact()
{
SampleInt = 0 //Making sure that the ruleCondition is matched
};
_moqConsequencePriorizter
.Setup(x => x.GetHighestPriorityOutput(
It.IsAny <IEnumerable <Rule <SampleFact, SampleOutput> > >(), It.IsAny <SampleFact>())).Returns(cons.Invoke(sampleFact));
var ruleContext = GetSampleExecuter();
ruleContext.AddRule(sampleRule2);
ruleContext.AddRule(sampleRule1);
//Execution
var result = ruleContext.ExecuteFact(sampleFact);
//Assertion
Assert.Equal(cons(sampleFact), result);
}
public void RuleContext_ShouldReturnNullOrDefault_WhenNoRuleIsTriggered()
{
//Setup
var ruleContext = GetSampleExecuter();
Func <SampleFact, bool> cond = x => x.SampleInt == 0;
Func <SampleFact, SampleOutput> cons = y => new SampleOutput(3);
var sampleRule = GetSampleRule(cond, cons);
var sampleFact = new SampleFact()
{
SampleInt = 3 //Making sure that the ruleCondition is not matched
};
ruleContext.AddRule(sampleRule);
//Execution
var output = ruleContext.ExecuteFact(sampleFact);
//Assert
Assert.NotEqual(cons.Invoke(sampleFact), output);
}
public void RuleContext_ShouldReturnExecutedRuleOutput_WhenSuccessfulRuleIsTriggered()
{
//Setup
var sampleFact = new SampleFact()
{
SampleInt = 0 //Making sure that the ruleCondition is matched
};
SetUpDefaultMoqConsequence(sampleFact);
var ruleContext = GetSampleExecuter();
Func <SampleFact, bool> cond = x => x.SampleInt == 0;
Func <SampleFact, SampleOutput> cons = y => new SampleOutput(3);
var sampleRule = GetSampleRule(cond, cons);
ruleContext.AddRule(sampleRule);
//Execution
var output = ruleContext.ExecuteFact(sampleFact);
//Assert
Assert.Equal(cons.Invoke(sampleFact), output);
}
private void SetUpDefaultMoqConsequence(SampleFact sampleFact)
{
_moqConsequencePriorizter.Setup(x => x.GetHighestPriorityOutput(It.IsAny <IEnumerable <Rule <SampleFact, SampleOutput> > >(), It.IsAny <SampleFact>()))
.Returns(new SampleOutput(3));
}