public void TestBuildAndMultipleElements()
{
const int count = 5;
// Arrange
var mocks = new List <Mock <ISpecification <T> > >();
for (var i = 0; i < count; ++i)
{
var spec = new Mock <ISpecification <T> >();
spec.Setup(s => s.IsSatisfiedBy(It.IsAny <T>())).Returns(true);
mocks.Add(spec);
}
// Act
var builder = mocks.Aggregate(new SpecificationBuilderAnd <T>() as ISpecificationContainerBuilder <T>, (current, item) => current.Add(new SimpleSpecificationBuilder <T>(() => item.Object)));
var specification = builder.Build();
// Assert
Assert.That(Value.Of(builder.Items).Count().Is().EqualTo(count), "No of Items");
Assert.That(Value.Of(specification).Is().TypeOf(typeof(AndSpecification <T>)), "Correct spec type");
Assert.That(Value.Of(specification.IsSatisfiedBy(RandomValues.Value <T>())).Is().True(), "IsSatisfied = true");
var idx = 0;
foreach (var mock in mocks)
{
mock.Verify(s => s.IsSatisfiedBy(It.IsAny <T>()), Times.Once(), string.Format("Mock {0} not called", idx++));
}
}
public void TestSpecificationPredicate()
{
// Arrange
var candidate = RandomValues.Value <T>();
var mockAction = new Mock <IInvokeDelegate>();
var specification = Specification.Create <T>(mockAction.Object.Predicate);
// Act
specification.IsSatisfiedBy(candidate);
// Assert
mockAction.Verify(a => a.Predicate(candidate), Times.Once());
}
public void TestSpecification()
{
// Arrange
var candidate = RandomValues.Value <T>();
var mockSpecification = new Mock <ISpecification <T> >();
var specification = mockSpecification.Object;
// Act
specification.IsSatisfiedBy(candidate);
// Assert
mockSpecification.Verify(s => s.IsSatisfiedBy(candidate), Times.Once());
}
public void TestAction()
{
// Arrange
var subject = RandomValues.Value <T>();
var mockAction = new Mock <IInvokeDelegate>();
var rule = Rule.Create <T>(mockAction.Object.Action);
// Act
rule.Process(subject);
// Assert
mockAction.Verify(a => a.Action(subject), Times.Once());
}
public void TestSpecificationNot([Values(false, true)] bool operand)
{
// Arrange
var candidate = RandomValues.Value <T>();
var innerSpecification = Specification.Create <T>(__ => operand);
var specification = innerSpecification.Not();
// Act
var isSatisfied = specification.IsSatisfiedBy(candidate);
// Assert
var expected = !operand;
Assert.That(Value.Of(isSatisfied).Is().EqualTo(expected), string.Format("Not {0}", operand));
}
public void TestSpecificationOr([Values(false, true)] bool lhs, [Values(false, true)] bool rhs)
{
// Arrange
var candidate = RandomValues.Value <T>();
var lhsSpecification = Specification.Create <T>(__ => lhs);
var rhsSpecification = Specification.Create <T>(__ => rhs);
var specification = lhsSpecification.Or(rhsSpecification);
// Act
var isSatisfied = specification.IsSatisfiedBy(candidate);
// Assert
var expected = lhs || rhs;
Assert.That(Value.Of(isSatisfied).Is().EqualTo(expected), string.Format("{0} Or {1}", lhs, rhs));
}
public void TestFollowOnAction()
{
// Arrange
var subject = RandomValues.Value <T>();
var mockAction2 = new Mock <IInvokeDelegate>();
var rule2 = Rule.Create <T>(mockAction2.Object.Action);
var mockAction1 = new Mock <IInvokeDelegate>();
var rule1 = Rule.Create <T>(mockAction1.Object.Action).FollowOn(rule2);
// Act
rule1.Process(subject);
// Assert
mockAction1.Verify(a => a.Action(subject), Times.Once());
mockAction2.Verify(a => a.Action(subject), Times.Once());
}
public void TestSpecificationOr([Values(false, true)] bool p1, [Values(false, true)] bool p2, [Values(false, true)] bool p3)
{
// Arrange
var candidate = RandomValues.Value <T>();
var specification1 = Specification.Create <T>(__ => p1);
var specification2 = Specification.Create <T>(__ => p2);
var specification3 = Specification.Create <T>(__ => p3);
var specification = specification1.Or(specification2).Or(specification3);
// Act
var isSatisfied = specification.IsSatisfiedBy(candidate);
// Assert
var expected = p1 || p2 || p3;
Assert.That(Value.Of(isSatisfied).Is().EqualTo(expected), string.Format("{0} OR {1} OR {2}", p1, p2, p3));
}
public void TestDecisionUnsatisfied()
{
// Arrange
var subject = RandomValues.Value <T>();
var mockActionSatisfied = new Mock <IInvokeDelegate>();
var ruleSatisfied = Rule.Create <T>(mockActionSatisfied.Object.Action);
var mockActionUnsatisfied = new Mock <IInvokeDelegate>();
var ruleUnsatisfied = Rule.Create <T>(mockActionUnsatisfied.Object.Action);
var mockSpecification = new Mock <ISpecification <T> >();
mockSpecification.Setup(s => s.IsSatisfiedBy(It.IsAny <T>())).Returns(false);
var rule = Rule.Create(mockSpecification.Object, ruleSatisfied, ruleUnsatisfied);
// Act
rule.Process(subject);
// Assert
mockActionSatisfied.Verify(a => a.Action(subject), Times.Never());
mockActionUnsatisfied.Verify(a => a.Action(subject), Times.Once());
}
public void TestChainOfResponsibilityRule()
{
// Arrange
var subject = RandomValues.Value <T>();
var mockActionTrue = new Mock <IInvokeDelegate>();
var ruleTrue = Rule.Create <T>(mockActionTrue.Object.Action);
var mockActionFalse = new Mock <IInvokeDelegate>();
var ruleFalse = Rule.Create <T>(mockActionFalse.Object.Action);
var rule = Rule.CreateChainOfResponsibility(new[]
{
Tuple.Create(Specification.False <T>(), ruleFalse),
Tuple.Create(Specification.False <T>(), ruleFalse),
Tuple.Create(Specification.True <T>(), ruleTrue),
Tuple.Create(Specification.True <T>(), ruleFalse)
});
// Act
rule.Process(subject);
// Assert
mockActionTrue.Verify(a => a.Action(subject), Times.Once());
mockActionFalse.Verify(a => a.Action(It.IsAny <T>()), Times.Never);
}