public void ApplyChangeHistory_Applies_Changes()
{
//Arrange
Guid aggregateId = Guid.NewGuid();
var event1 = new FakeEvent(aggregateId, "First");
var event2 = new FakeEvent(aggregateId, "Second");
var events = new List <Event>()
{
event1, event2
};
var aggregate = new FakeAggregate(Guid.NewGuid(), events);
//Act
aggregate.ApplyChangeHistory();
//Assert
aggregate.Changes.Should().NotBeNullOrEmpty();
var changes = aggregate.Changes.ToList();
changes.Should().Contain(event1);
changes.Should().Contain(event2);
aggregate.MessageLog.Should().Contain(event1.Message);
aggregate.MessageLog.Should().Contain(event2.Message);
}
public void AddChange_ThrowsArgumentNullException_WhenEventIsNull()
{
//Arrange
var aggregate = new FakeAggregate();
//Act
Action action = (() => aggregate.TriggerNullEvent());
//Assert
Assert.Throws <ArgumentNullException>(action);
}
public void AddChange_ThrowsEventNotHandledException_WhenEventIsNotHandled()
{
//Arrange
var aggregate = new FakeAggregate();
//Act
Action action = (() => aggregate.TriggerUnhandledFakeEvent());
//Assert
Assert.Throws <EventNotHandledException>(action);
}
public void ApplyChangeHistory_ThrowsEventNotHandledException_WhenOneEventIsNotHandled()
{
//Arrange
Guid aggregateId = Guid.NewGuid();
var event1 = new UnhandledFakeEvent(aggregateId);
var events = new List <Event>()
{
event1
};
var aggregate = new FakeAggregate(Guid.NewGuid(), events);
//Act
Action action = (() => aggregate.ApplyChangeHistory());
//Assert
Assert.Throws <EventNotHandledException>(action);
}
public void AddChange_AddsChangeToHistory_AndAppliesChange()
{
//Arrange
const string message = "Hello !";
var aggregate = new FakeAggregate();
//Act
aggregate.TriggerFakeEvent(message);
//Assert
aggregate.Changes.Should().NotBeNullOrEmpty();
var changes = aggregate.Changes.ToList();
changes.Should().Contain(c => ((FakeEvent)c).Message == message);
aggregate.MessageLog.Should().Contain(message);
}
public void ApplyChangeHistory_AppliesEventBeforeUpToParameter_IfSupplied()
{
//Arrange
Guid aggregateId = Guid.NewGuid();
var event1 = new FakeEvent(aggregateId, Guid.NewGuid(), DateTime.MinValue, "first");
var event2 = new FakeEvent(aggregateId, Guid.NewGuid(), DateTime.Now.AddDays(-10), "second");
var event3 = new FakeEvent(aggregateId, Guid.NewGuid(), DateTime.Now.AddDays(-5), "third");
var event4 = new FakeEvent(aggregateId, Guid.NewGuid(), DateTime.MaxValue, "fourth");
var events = new List <Event>()
{
event1, event2, event3, event4
};
var aggregate = new FakeAggregate(Guid.NewGuid(), events);
//Act
aggregate.ApplyChangeHistory(DateTime.Now);
//Assert
aggregate.MessageLog.Should().NotBeNullOrEmpty();
aggregate.MessageLog.Should().Contain(event1.Message);
aggregate.MessageLog.Should().Contain(event2.Message);
aggregate.MessageLog.Should().Contain(event3.Message);
aggregate.MessageLog.Should().NotContain(event4.Message);
}