public void SubsequentViewPersistence(
IRepository <string, SomeData> repository,
View view,
ISequenceResolver sequenceResolver,
IRepository <string, Snapshot> snapshotRepository,
IViewManager viewManager,
SomeEvent firstEvent,
SomeEvent secondEvent,
SomeData initialData,
SomeData actualInitialData,
SomeData subsequentData)
{
"Given a view repository"._(() => repository = new MemoryRepository <string, SomeData>());
"and some intial data"._(
() => initialData = new SomeData
{
LastEventId = "test2",
EventCount = 2,
});
"and the repository contains the initial data"._(() => repository.AddOrUpdate("root", initialData));
"and a view"._(() => view = new SomeView(repository));
"and a sequence resolver"._(() => sequenceResolver = new CustomSequenceResolver());
"and a snapshot repository"._(() => snapshotRepository = new MemoryRepository <string, Snapshot>());
"and the snapshot repository contains the initial snapshot data"._(
() => snapshotRepository.AddOrUpdate(
view.GetType().FullName,
new Snapshot
{
ViewName = view.GetType().FullName,
PersistedSequenceNumber = 2,
}));
"and a view manager"._(ctx => viewManager =
ViewManager.ForViews(view)
.OrderEventsUsing(sequenceResolver)
.SnapshotViewsUsing(snapshotRepository).WithAQuietTimeTimeoutOf(2)
.Create().Using(ctx));
"and a third event"._(() => firstEvent = new SomeEvent {
Sequence = 3, Id = "test3"
});
"and a fourth event"._(() => secondEvent = new SomeEvent {
Sequence = 4, Id = "test4"
});
"when those events are dispatched"._(
() =>
{
viewManager.QueueForDispatch(firstEvent);
viewManager.QueueForDispatch(secondEvent);
});
"and the operation is given time to process"._(() => Thread.Sleep(1000));
"and the repository is queried initially"._(() => actualInitialData = repository.Get("root"));
"and the snapshot is given time to process"._(() => Thread.Sleep(2000));
"and the repository is queried subsequently"._(() => subsequentData = repository.Get("root"));
"then the initial query should be empty"._(() => actualInitialData.Should().Be(initialData));
"and the view received the second event last"._(() => subsequentData.LastEventId.Should().Be(secondEvent.Id));
"and the view received two events"._(() => subsequentData.EventCount.Should().Be(4));
}
public void InitialViewPersistence(
IRepository <string, SomeData> repository,
View view,
ISequenceResolver sequenceResolver,
IRepository <string, Snapshot> snapshotRepository,
IViewManager viewManager,
SomeEvent firstEvent,
SomeEvent secondEvent,
SomeData initialData,
SomeData subsequentData)
{
"Given a view repository"._(() => repository = new MemoryRepository <string, SomeData>());
"and a view"._(() => view = new SomeView(repository));
"and a sequence resolver"._(() => sequenceResolver = new CustomSequenceResolver());
"and a snapshot repository"._(() => snapshotRepository = new MemoryRepository <string, Snapshot>());
"and a view manager"._(ctx => viewManager =
ViewManager.ForViews(view)
.OrderEventsUsing(sequenceResolver)
.SnapshotViewsUsing(snapshotRepository).WithAQuietTimeTimeoutOf(2)
.Create().Using(ctx));
"and a first event"._(() => firstEvent = new SomeEvent {
Sequence = 1, Id = "test"
});
"and a second event"._(() => secondEvent = new SomeEvent {
Sequence = 2, Id = "test2"
});
"when those events are dispatched"._(
() =>
{
viewManager.QueueForDispatch(firstEvent);
viewManager.QueueForDispatch(secondEvent);
});
"and the operation is given time to process"._(() => Thread.Sleep(1000));
"and the repository is queried initially"._(() => initialData = repository.Get("root"));
"and the snapshot is given time to process"._(() => Thread.Sleep(2000));
"and the repository is queried subsequently"._(() => subsequentData = repository.Get("root"));
"then the initial query should be empty"._(() => initialData.Should().BeNull());
"and the view received the second event last"._(() => subsequentData.LastEventId.Should().Be(secondEvent.Id));
"and the view received two events"._(() => subsequentData.EventCount.Should().Be(2));
}
