private JsonEasyRuleEvaluator(IMetricService metricService = null)
{
_easyRuleDymeRuleSvc = new EasyRuleDymeRuleConverter();
_worldAnalyser = new JsonPathWorldAnalyser();
_worldReader = new JsonPathWorldReader();
_inferenceEngineSvc = new DymeInferenceEvaluator(_worldReader, _worldAnalyser, metricService);
_ruleEvaluatorSvc = new DymeRuleEvaluator(_worldReader);
}
public void ConjunctionEquals_Given2EqualConjunctionsCreatedByDifferentMeans_ExpectEqual()
{
// Arrange...
var parser = new EasyRuleDymeRuleConverter();
var compareItem1 = parser.ConvertEasyRuleToDymeRule("(sky) IS (blue) AND (weather) IS (sunny)");
var compareItem2 = All.Of(ItsAFact.That("sky").Is("blue")).And(ItsAFact.That("weather").Is("sunny")).IsTrue();
// Assert...
Assert.AreEqual(compareItem1, compareItem2);
}
public void ImplicationEquals_Given2EqualImplicationsCreatedByDifferentMeans_ExpectEqual()
{
// Arrange...
var parser = new EasyRuleDymeRuleConverter();
var compareItem1 = parser.ConvertEasyRuleToDymeRule("IF (sky) IS (blue) THEN (weather) IS (sunny)");
var compareItem2 = If.When(ItsAFact.That("sky").Is("blue")).Then(ItsAFact.That("weather").Is("sunny"));
// Assert...
Assert.AreEqual(compareItem1, compareItem2);
}
public void EasyRuleDymeParser_GivenDymeRules_ExpectEasyRules()
{
// Arrange...
var sut = new EasyRuleDymeRuleConverter();
var expectEasyRule = "IF (Age) IS (18) THEN (Movie) IS (Visible)";
var inputDymeRule = If.When(ItsAFact.That("Age").Is("18")).Then(ItsAFact.That("Movie").Is("Visible"));
// Act...
var result = sut.ConvertDymeRuleToEasyRule(inputDymeRule);
Assert.AreEqual(expectEasyRule, result);
}
public void ImplicationEquals_GivenEqualImplicationsListDistinctified_Expect1Item()
{
// Arrange...
var parser = new EasyRuleDymeRuleConverter();
var compareItemList = new List <IEvaluatable>();
compareItemList.Add(parser.ConvertEasyRuleToDymeRule("IF (sky) IS (blue) THEN (weather) IS (sunny)"));
compareItemList.Add(If.When(ItsAFact.That("sky").Is("blue")).Then(ItsAFact.That("weather").Is("sunny")));
// Act...
compareItemList = compareItemList.Distinct().ToList();
// Assert...
Assert.AreEqual(1, compareItemList.Count());
}
public void ValidateRulesAgainstWorld_GivenRuleAndworld_ExpectPass(string inputRule, string inputWorld, bool inputResult)
{
// Arrange ...
var parser = new EasyRuleDymeRuleConverter();
var stateOfTheWorld = GetWorldFromFlatWorld(inputWorld);
var evaluatableRule = parser.ConvertEasyRuleToDymeRule(inputRule);
bool expectedResult = inputResult;
// Act ...
var result = sut.IsTrueIn(evaluatableRule, stateOfTheWorld);
// Assert ...
Assert.AreEqual(expectedResult, result);
}
public void ValidateRulesAgainstWorld_GivenComplexRule2AndWorld_ExpectPass(string inputWorld, bool inputResult)
{
// Arrange ...
var inputRule = @"IF ((weather) IS (sunny) AND (wind) IS (mild)) OR ((sky) IS (blue))
THEN (destination) IS (beach)";
var parser = new EasyRuleDymeRuleConverter();
var stateOfTheWorld = GetWorldFromFlatWorld(inputWorld);
var evaluatableRule = parser.ConvertEasyRuleToDymeRule(inputRule);
bool expectedResult = inputResult;
// Act ...
var result = sut.IsTrueIn(evaluatableRule, stateOfTheWorld);
// Assert ...
Assert.AreEqual(expectedResult, result);
}
public void ValidateRulesAgainstWorld_GivenRuleAndworld_ExpectPass()
{
// Arrange ...
var parser = new EasyRuleDymeRuleConverter();
var stateOfTheWorld = new Dictionary <string, string>();
stateOfTheWorld.Add("weather", "sunny");
stateOfTheWorld.Add("destination", "beach");
var inputRule = "IF (weather) IS (sunny) THEN (destination) IS (beach)";
var evaluatableRule = parser.ConvertEasyRuleToDymeRule(inputRule);
// Act ...
var result = sut.IsTrueIn(evaluatableRule, stateOfTheWorld);
// Assert ...
Assert.AreEqual(true, result);
}
public void ConjunctionEquals_Given2EqualConjunctionsWith3ArgumentsCreatedByDifferentMeans_ExpectSimilarHashes()
{
// Arrange...
var parser = new EasyRuleDymeRuleConverter();
var compareItem1 = parser.ConvertEasyRuleToDymeRule("(sky) IS (blue) AND (weather) IS (sunny) AND (water) IS (warm)");
var compareItem2 = All.Of(
ItsAFact.That("sky").Is("blue"))
.And(ItsAFact.That("weather").Is("sunny"))
.And(ItsAFact.That("water").Is("warm"))
.IsTrue();
// Act...
var result1 = compareItem1.GetHashCode();
var result2 = compareItem2.GetHashCode();
// Assert...
Assert.AreEqual(result1, result2);
}
public void EasyRuleDymeParser_GivenNestedDymeRules_ExpectEasyRules()
{
// Arrange...
var sut = new EasyRuleDymeRuleConverter();
var expectEasyRule = "IF (age) GREATER THAN (18) OR ((age) LESS THAN (100) AND (date) PART OF (2000/01/01)) THEN (movie) IS (visible) AND (warnings) CONTAINS (violence)";
var inputDymeRule =
If.When(Any.Of
(ItsAFact.That("age").IsGreaterThan("18"))
.Or
(All.Of(ItsAFact.That("age").IsLessThan("100")).And(ItsAFact.That("date").IsIn("2000/01/01")).IsTrue())
.IsTrue())
.Then(All.Of
(ItsAFact.That("movie").Is("visible"))
.And
(ItsAFact.That("warnings").Contains("violence"))
.IsTrue());
// Act...
var result = sut.ConvertDymeRuleToEasyRule(inputDymeRule);
Assert.AreEqual(expectEasyRule, result);
}
public void EasyRuleDymeParser_GivenBothJunctiveDymeRules_ExpectEasyRules()
{
// Arrange...
var sut = new EasyRuleDymeRuleConverter();
var expectEasyRule = "IF (age) IS (10) OR (genre) IS (cartoon) THEN (movie) IS (visible) AND (there) NOT (violence)";
var inputDymeRule =
If.When(Any.Of
(ItsAFact.That("age").Is("10"))
.Or
(ItsAFact.That("genre").Is("cartoon"))
.IsTrue())
.Then(All.Of
(ItsAFact.That("movie").Is("visible"))
.And
(ItsAFact.That("there").IsNot("violence"))
.IsTrue());
// Act...
var result = sut.ConvertDymeRuleToEasyRule(inputDymeRule);
Assert.AreEqual(expectEasyRule, result);
}
public void MtricSvc_GivenRuleAndworld_ExpectPass()
{
// Arrange ...
var parser = new EasyRuleDymeRuleConverter();
var stateOfTheWorld = new Dictionary <string, string>();
stateOfTheWorld.Add("weather", "sunny");
stateOfTheWorld.Add("destination", "beach");
var inputRule = "IF (weather) IS (sunny) THEN (destination) IS (beach)";
var evaluatableRule = parser.ConvertEasyRuleToDymeRule(inputRule);
var expectedResult = new Dictionary <string, int>();
expectedResult.Add("EvaluateImplication", 1);
expectedResult.Add("EvaluateProposition", 2);
expectedResult.Add("GetValueFromWorld", 2);
// Act ...
sut.IsTrueIn(evaluatableRule, stateOfTheWorld);
var result = (metricSvc as DefaultMetricService).metrics;
// Assert ...
CollectionAssert.AreEquivalent(expectedResult, result);
}
