public void GivenAnyEvent_WhenQueryingVersion_ThenShouldReturnCorrectVersion()
{
// Arrange
var versionHandler = new RuntimeConfiguredVersionHandler();
versionHandler.AddConfiguration<UserRegistered>(e => e.Version, null);
var evt = new UserRegistered(Guid.NewGuid());
// Act
Guid version = versionHandler.GetVersion(evt);
// Assert
Assert.AreEqual(evt.Version, version);
}
public void GivenEmptyEventStore_WhenAddingEventsOneAtATime_ThenStoreShouldContainThoseEvents()
{
// Arrange
IEventStore store = new InMemoryEventStore();
var userId = Guid.NewGuid();
var userRegistered = new UserRegistered(userId);
// Act
store.Store(userId, userRegistered);
// Assert
CollectionAssert.IsNotEmpty(((InMemoryEventStore)store).Events);
Assert.AreSame(userRegistered, ((InMemoryEventStore)store).Events.First());
}
public void GivenNewEvent_WhenSettingParentVersion_ThenShouldSetParentVersion()
{
// Arrange
var userId = Guid.Parse("00000000-0000-0000-0000-000000000001");
var userRegisteredEvent = new UserRegistered(userId);
var userChangedPasswordEvent = new UserChangedPassword("newpassword");
var versionHandler = new RuntimeConfiguredVersionHandler();
versionHandler.AddConfiguration<UserChangedPassword>(null, (e, v) => e.ParentVersion = v);
// Act
versionHandler.SetParentVersion(userChangedPasswordEvent, userRegisteredEvent.Version);
// Assert
Assert.AreEqual(userRegisteredEvent.Version, userChangedPasswordEvent.ParentVersion);
}
public void GivenAggregateWithUncommittedEvents_WhenSaved_ThenBaseVersionShouldMatchCurrentVersion()
{
// Arrange
var userId = Guid.NewGuid();
var eventStore = new InMemoryEventStore();
var userRegistered = new UserRegistered(userId);
eventStore.Update(userId, userRegistered);
var repository = new EventSourcingRepository<User>(eventStore, new Mock<IConcurrencyMonitor>().Object);
var user = repository.Get(userId);
user.ChangePassword("newpassword");
var currentVersion = user.GetUncommittedEvents().Cast<Event>().Last().Version;
// Act
repository.Save(user);
// Assert
Assert.AreEqual(currentVersion, user.BaseVersion, "User's base version has not been updated to match current version on successful save.");
}
public void AcceptingEvents_GivenAggregateWithUncommittedEvents_ShouldClearUncommittedEvents()
{
// Arrange
var user = new User();
user.Register();
user.ChangePassword("newpassword");
// Act
var userRegisteredEvent = new UserRegistered(user.Id);
var userChangedPasswordEvent = new UserChangedPassword("newpassword") { ParentVersion = userRegisteredEvent.Version };
IEnumerable<object> expectedBefore = new object[] { userRegisteredEvent, userChangedPasswordEvent };
IEnumerable<object> expectedAfter = new object[0];
IEnumerable<object> before = user.GetUncommittedEvents();
user.AcceptUncommittedEvents();
IEnumerable<object> after = user.GetUncommittedEvents();
// Assert
CollectionAssertAreJsonEqual(expectedBefore, before);
CollectionAssertAreJsonEqual(expectedAfter, after);
}
public void InvokingBehaviour_GivenSimpleAggregateRoot_ShouldRecordEvents()
{
// Arrange
var user = new User();
user.Register();
// Act
user.ChangePassword("newpassword");
IEnumerable<object> actual = user.GetUncommittedEvents();
var userRegisteredEvent = new UserRegistered(user.Id);
var userChangedPasswordEvent = new UserChangedPassword("newpassword") { ParentVersion = userRegisteredEvent.Version };
IEnumerable<object> expected = new object[] { userRegisteredEvent, userChangedPasswordEvent };
// Assert
CollectionAssertAreJsonEqual(expected, actual);
}
private void Apply(UserRegistered evt)
{
Id = evt.UserId;
}
private void Apply(UserRegistered evt)
{
Id = evt.UserId;
}
