public void WhenAnEventsAreReplayed_ThenTheNextEventVersionShouldBeInitializedProperly()
{
var entity = new AggregateRootFake
{
Id = new FakeId()
};
var event1 = new FakeEvent(
Guid.NewGuid(),
entity.Id.Value,
entity.Id.Value,
DateTime.UtcNow,
1
);
var event2 = new FakeEvent(
Guid.NewGuid(),
entity.Id.Value,
entity.Id.Value,
DateTime.UtcNow,
2
);
entity.Replay(event1);
entity.Replay(event2);
entity.Increment();
entity.Changes[0].Version.Should().Be(3);
}
public void WhenAnEventsAreReplayed_AnErrorShouldBeThrownIfTheirIsAVersionMismatch()
{
var entity = new AggregateRootFake
{
Id = new FakeId()
};
var event1 = new FakeEvent(
Guid.NewGuid(),
entity.Id.Value,
entity.Id.Value,
DateTime.UtcNow,
1
);
var event2 = new FakeEvent(
Guid.NewGuid(),
entity.Id.Value,
entity.Id.Value,
DateTime.UtcNow,
100
);
entity.Replay(event1);
entity.Invoking(e => e.Replay(event2))
.Should().Throw <EntityException>()
.WithMessage("Unexpected event version. Expected version '100' to be '2'");
}
public void Create_entity_from_IAggregateRoot()
{
var id = new IdFake(10);
var aggregateRoot = new AggregateRootFake(id);
aggregateRoot.Should().BeAssignableTo <IAggregateRoot>();
}
public void WhenAnEntityIsCreated_ThenTheFirstEventVersionToAssignedShouldBeOne()
{
var entity = new AggregateRootFake
{
Id = new FakeId()
};
entity.Increment();
entity.Changes.Count.Should().Be(1);
entity.Changes[0].Version.Should().Be(1);
}
public async void ShouldSaveEventsForEntity()
{
var db = new Mock <IEventStore>();
var entityStore = new EntityStore(db.Object);
var entity = new AggregateRootFake
{
Id = new FakeId()
};
entity.Increment();
entity.Increment();
entity.Increment();
await entityStore.Save <AggregateRootFake>(entity);
db.Verify(m => m.Save(It.IsAny <FakeEvent>()), Times.Exactly(3));
}
public async void ShouldLoadEntityAndApplyStoredEvent()
{
var db = new InMemoryEventStore();
var entityStore = new EntityStore(db);
var entity = new AggregateRootFake
{
Id = new FakeId()
};
entity.Increment();
entity.Increment();
entity.Increment();
await entityStore.Save(entity);
var loadedEntity = await entityStore.Load <AggregateRootFake>(entity.Id);
loadedEntity.Changes.Count.Should().Be(0);
loadedEntity.Count.Should().Be(3);
}
public ListDatabaseTest()
{
_database = new ListDatabase <AggregateRootFake, IdFake>();
_id = new IdFake(10);
_aggregate = new AggregateRootFake(_id);
}
