public void IsNot()
{
IRule <int> rule = RuleMaker.IsNot(10);
Assert.IsTrue(rule.Evaluate(20));
Assert.IsFalse(rule.Evaluate(10));
}
public void CopyConstructor()
{
var pattern = new Pattern("A-U-A")
{
Description = "hello",
IsLeftFirst = true,
ValencyPosition = 1,
UpRule = new MorphemeRule(GrammarCharacter.A, RuleMaker.Is("bla1"), RuleMaker.Is <BigInteger>(1)),
UpAttributes = 100,
LeftRule = new MorphemeRule(GrammarCharacter.O, RuleMaker.Is("bla2"), RuleMaker.Is <BigInteger>(2)),
LeftAttributes = 200,
RightRule = new MorphemeRule(GrammarCharacter.I, RuleMaker.Is("bla3"), RuleMaker.Is <BigInteger>(3)),
RightAttributes = 300,
};
var copy = new Pattern(pattern);
Assert.AreEqual(pattern.Name, copy.Name);
Assert.AreEqual(pattern.Description, copy.Description);
Assert.AreEqual(pattern.ValencyPosition, copy.ValencyPosition);
Assert.AreEqual(pattern.IsLeftFirst, copy.IsLeftFirst);
Assert.IsTrue(pattern.UpRule.Equals(copy.UpRule));
Assert.AreEqual(pattern.UpAttributes, copy.UpAttributes);
Assert.IsTrue(pattern.LeftRule.Equals(copy.LeftRule));
Assert.AreEqual(pattern.LeftAttributes, copy.LeftAttributes);
Assert.IsTrue(pattern.RightRule.Equals(copy.RightRule));
Assert.AreEqual(pattern.RightAttributes, copy.RightAttributes);
Assert.IsTrue(pattern.Equals(copy));
}
public void IsNotNull()
{
IRule <string> rule = RuleMaker.IsNotNull <string>();
Assert.IsTrue(rule.Evaluate("hello"));
Assert.IsFalse(rule.Evaluate(null));
}
public void If_Then_Else()
{
ITransformation <int> t = Trans.If(RuleMaker.Is(10), Trans.ReplaceWith(9)).Else(Trans.ReplaceWith(3));
Assert.AreEqual(9, t.Transform(10));
Assert.AreEqual(3, t.Transform(5));
}
public void IsSubruleOf_Negations()
{
IRule <int> rule1 = !RuleMaker.Is(1) & !RuleMaker.Is(2);
IRule <int> rule2 = !RuleMaker.Is(1) & !RuleMaker.Is(2) & !RuleMaker.Is(3);
Assert.IsTrue(rule2.IsSubruleOf(rule1));
Assert.IsFalse(rule1.IsSubruleOf(rule2));
}
public void And()
{
// if x != 10 && x == 20
IRule <int> rule = RuleMaker.Not(10).And(20);
Assert.IsTrue(rule.Evaluate(20));
Assert.IsFalse(rule.Evaluate(10));
Assert.IsFalse(rule.Evaluate(100));
}
public void ImplicitRuleOperators()
{
IRule <string> rule = !RuleMaker.IsNull <string>() & !RuleMaker.Is("") & RuleMaker.Is("hi") | RuleMaker.Is("hello");
Assert.IsTrue(rule.Evaluate("hi"));
Assert.IsTrue(rule.Evaluate("hello"));
Assert.IsFalse(rule.Evaluate("bla"));
Assert.IsFalse(rule.Evaluate(null));
Assert.IsFalse(rule.Evaluate(""));
}
public void GetRulesForCustomer_RuleNotMatched_ReturnsDefaultRule()
{
// Arrange
dynamic param = new ExpandoObject();
// Act
var result = RuleMaker.MakeRule("Default", "promotions", param);
// Assert
Assert.AreEqual("Default", result.ProductName);
}
public void Or()
{
// if x == 10 || x == 20 || x == 30
IRule <int> rule = RuleMaker.Is(10).Or(20).Or(30);
Assert.IsTrue(rule.Evaluate(10));
Assert.IsTrue(rule.Evaluate(20));
Assert.IsTrue(rule.Evaluate(30));
Assert.IsFalse(rule.Evaluate(100));
}
public void GetRulesForCustomer_RuleForPriceDrop_ReturnpricedropRule()
{
// Arrange
dynamic param = new ExpandoObject();
param.droppedprice = 299.99;
param.minnumitems = 1;
// Act
var result = RuleMaker.MakeRule("Standout Ad", "price_drop", param);
// Assert
Assert.AreEqual("Standout Ad", result.ProductName);
}
public void GetReferenceValues()
{
// !((1 && 2) || 3)
// it means: Not(Or(And(1, 2), 3)) => 6 rules: Not, Or, And, 1, 2, 3.
IRule <int> rule = RuleMaker.Is(1).And(2).Or(3).Not();
List <int> rules = rule.GetReferenceValues().ToList();
Assert.AreEqual(3, rules.Count);
Assert.AreEqual(1, rules[0]);
Assert.AreEqual(2, rules[1]);
Assert.AreEqual(3, rules[2]);
}
public void GetRulesForCustomer_RuleForDiscount_ReturnsDiscountRule()
{
// Arrange
dynamic param = new ExpandoObject();
param.purchased = 3;
param.chargedfor = 2;
// Act
var result = RuleMaker.MakeRule("Classic Ad", "discount", param);
// Assert
Assert.AreEqual("Classic Ad", result.ProductName);
}
public void CopyConstructor()
{
var morphemeRule = new MorphemeRule(GrammarCharacter.I, RuleMaker.Anything <string>(), MaskRule.Is(EnglishAttributes.I.Lexeme.Interjection));
morphemeRule.SetSubstitution(SubstitutionRules.Epsilon_U_E);
var copy = new MorphemeRule(morphemeRule);
Assert.AreEqual(morphemeRule.GrammarCharacter, copy.GrammarCharacter);
Assert.IsTrue(morphemeRule.MorphRule.Equals(copy.MorphRule));
Assert.IsTrue(morphemeRule.AttributesRule.Equals(copy.AttributesRule));
Assert.IsTrue(morphemeRule.SubstitutionRule.Equals(copy.SubstitutionRule));
Assert.IsTrue(morphemeRule.Equals(copy));
}
public void GetRules()
{
// !((1 && 2) || 3)
// it means: Not(Or(And(1, 2), 3)) => 6 rules: Not, Or, And, 1, 2, 3.
IRule <int> rule = RuleMaker.Is(1).And(2).Or(3).Not();
List <IRule <int> > rules = rule.GetRules().ToList();
Assert.AreEqual(6, rules.Count);
Assert.IsTrue(rules[0] is NotRule <int>);
Assert.IsTrue(rules[1] is OrRule <int>);
Assert.IsTrue(rules[2] is AndRule <int>);
Assert.IsTrue(rules[3] is IsRule <int> is1 && is1.ReferenceValue == 1);
Assert.IsTrue(rules[4] is IsRule <int> is2 && is2.ReferenceValue == 2);
Assert.IsTrue(rules[5] is IsRule <int> is3 && is3.ReferenceValue == 3);
}
public void Equals()
{
IRule <int> rule1 = RuleMaker.Is(10).Or(20).Or(30);
IRule <int> rule2 = RuleMaker.Is(10).Or(20).Or(30);
Assert.IsTrue(rule1.Equals(rule2));
Assert.IsTrue(rule2.Equals(rule1));
// Different order means a different rule because the evaluation may stop in different point.
// E.g. if the second OR is true then it does not continue. So both rules although giving the same result will
// be evaluated differently.
rule2 = RuleMaker.Is(10).Or(30).Or(20);
Assert.IsFalse(rule1.Equals(rule2));
rule1 = RuleMaker.Is(10).And(20).And(30);
rule2 = RuleMaker.Is(10).And(20).And(30);
Assert.IsTrue(rule1.Equals(rule2));
Assert.IsTrue(rule2.Equals(rule1));
rule2 = RuleMaker.Is(10).And(30).And(20);
Assert.IsFalse(rule1.Equals(rule2));
rule1 = RuleMaker.Is(10).Not();
rule2 = RuleMaker.Is(10).Not();
Assert.IsTrue(rule1.Equals(rule2));
rule1 = RuleMaker.Is(10).Not();
rule2 = RuleMaker.Is(20).Not();
Assert.IsFalse(rule1.Equals(rule2));
rule1 = RuleMaker.Anything <int>();
rule2 = RuleMaker.Anything <int>();
Assert.IsTrue(rule1.Equals(rule2));
rule1 = RuleMaker.Nothing <int>();
rule2 = RuleMaker.Nothing <int>();
Assert.IsTrue(rule1.Equals(rule2));
}
public void IsMatch()
{
IAttributesModel attributesModel = new EnglishAttributesModel();
// Or
MorphemeRule morphemeRule = new MorphemeRule(GrammarCharacter.I, RuleMaker.Anything <string>(), MaskRule.Is(EnglishAttributes.I.Lexeme.Interjection).Or(MaskRule.Is(EnglishAttributes.I.Lexeme.Verb)));
Assert.IsTrue(morphemeRule.Evaluate(new Morpheme(attributesModel, "", EnglishAttributes.I.Lexeme.Verb)));
Assert.IsTrue(morphemeRule.Evaluate(new Morpheme(attributesModel, "", EnglishAttributes.I.Lexeme.Interjection)));
Assert.IsTrue(morphemeRule.Evaluate(new Morpheme(attributesModel, "", EnglishAttributes.I.Lexeme.Verb | EnglishAttributes.I.Lexeme.Interjection)));
Assert.IsFalse(morphemeRule.Evaluate(new Morpheme(attributesModel, "", EnglishAttributes.O)));
// And
morphemeRule = new MorphemeRule(GrammarCharacter.I, RuleMaker.Anything <string>(), MaskRule.Is(EnglishAttributes.I.Lexeme.Interjection).And(MaskRule.Is(EnglishAttributes.I.Lexeme.Verb)));
Assert.IsFalse(morphemeRule.Evaluate(new Morpheme(attributesModel, "", EnglishAttributes.I.Lexeme.Verb)));
Assert.IsFalse(morphemeRule.Evaluate(new Morpheme(attributesModel, "", EnglishAttributes.I.Lexeme.Interjection)));
Assert.IsTrue(morphemeRule.Evaluate(new Morpheme(attributesModel, "", EnglishAttributes.I.Lexeme.Verb | EnglishAttributes.I.Lexeme.Interjection)));
Assert.IsFalse(morphemeRule.Evaluate(new Morpheme(attributesModel, "", EnglishAttributes.O)));
}
public void IsSubruleOf()
{
IRule <int> rule1 = RuleMaker.Is(1) | RuleMaker.Is(2);
IRule <int> rule2 = RuleMaker.Is(1) | RuleMaker.Is(2) | RuleMaker.Is(3);
Assert.IsTrue(rule1.IsSubruleOf(rule2));
Assert.IsFalse(rule2.IsSubruleOf(rule1));
// Two same rules.
Assert.IsTrue(rule1.IsSubruleOf(rule1));
Assert.IsTrue(rule1.IsSubruleOf(RuleMaker.Anything <int>()));
Assert.IsFalse(rule1.IsSubruleOf(RuleMaker.Nothing <int>()));
Assert.IsTrue(RuleMaker.Anything <int>().IsSubruleOf(RuleMaker.Anything <int>()));
Assert.IsFalse(RuleMaker.Anything <int>().IsSubruleOf(RuleMaker.Nothing <int>()));
Assert.IsFalse(RuleMaker.Nothing <int>().IsSubruleOf(RuleMaker.Anything <int>()));
}
/// <summary> /// Morph with the specified value is accepted. /// </summary> /// <param name="value"></param> /// <returns></returns> public static IRule <string> Is(string value) => RuleMaker.Is(value);
