func TestCommandBus(t *testing.T) {
bus := NewCommandBus()
if bus == nil {
t.Fatal("there should be a bus")
}
t.Log("handle with no handler")
command1 := &testutil.TestCommand{eh.NewUUID(), "command1"}
err := bus.HandleCommand(command1)
if err != eh.ErrHandlerNotFound {
t.Error("there should be a ErrHandlerNotFound error:", err)
}
t.Log("set handler")
handler := &TestCommandHandler{}
err = bus.SetHandler(handler, testutil.TestCommandType)
if err != nil {
t.Error("there should be no error:", err)
}
t.Log("handle with handler")
err = bus.HandleCommand(command1)
if err != nil {
t.Error("there should be no error:", err)
}
if handler.command != command1 {
t.Error("the handled command should be correct:", handler.command)
}
err = bus.SetHandler(handler, testutil.TestCommandType)
if err != eh.ErrHandlerAlreadySet {
t.Error("there should be a ErrHandlerAlreadySet error:", err)
}
}
func TestEventStore(t *testing.T) {
config := &EventStoreConfig{
Table: "eventhorizonTest-" + eh.NewUUID().String(),
Region: "eu-west-1",
}
store, err := NewEventStore(config)
if err != nil {
t.Fatal("there should be no error:", err)
}
if store == nil {
t.Fatal("there should be a store")
}
t.Log("creating table:", config.Table)
if err := store.CreateTable(); err != nil {
t.Fatal("could not create table:", err)
}
defer func() {
t.Log("deleting table:", store.config.Table)
if err := store.DeleteTable(); err != nil {
t.Fatal("could not delete table: ", err)
}
}()
// Run the actual test suite.
testutil.EventStoreCommonTests(t, store)
}
func TestEventBus(t *testing.T) {
bus := NewEventBus()
if bus == nil {
t.Fatal("there should be a bus")
}
observer := testutil.NewMockEventObserver()
bus.AddObserver(observer)
t.Log("publish event without handler")
event1 := &testutil.TestEvent{eh.NewUUID(), "event1"}
bus.PublishEvent(event1)
if !reflect.DeepEqual(observer.Events, []eh.Event{event1}) {
t.Error("the observed events should be correct:", observer.Events)
}
t.Log("publish event")
handler := testutil.NewMockEventHandler("testHandler")
bus.AddHandler(handler, testutil.TestEventType)
bus.PublishEvent(event1)
if !reflect.DeepEqual(handler.Events, []eh.Event{event1}) {
t.Error("the handler events should be correct:", handler.Events)
}
if !reflect.DeepEqual(observer.Events, []eh.Event{event1, event1}) {
t.Error("the observed events should be correct:", observer.Events)
}
t.Log("publish another event")
bus.AddHandler(handler, testutil.TestEventOtherType)
event2 := &testutil.TestEventOther{eh.NewUUID(), "event2"}
bus.PublishEvent(event2)
if !reflect.DeepEqual(handler.Events, []eh.Event{event1, event2}) {
t.Error("the handler events should be correct:", handler.Events)
}
if !reflect.DeepEqual(observer.Events, []eh.Event{event1, event1, event2}) {
t.Error("the observed events should be correct:", observer.Events)
}
}
func TestReadRepository(t *testing.T) {
// Support Wercker testing with MongoDB.
host := os.Getenv("MONGO_PORT_27017_TCP_ADDR")
port := os.Getenv("MONGO_PORT_27017_TCP_PORT")
url := "localhost"
if host != "" && port != "" {
url = host + ":" + port
}
repo, err := NewReadRepository(url, "test", "testutil.TestModel")
if err != nil {
t.Error("there should be no error:", err)
}
if repo == nil {
t.Error("there should be a repository")
}
repo.SetModel(func() interface{} {
return &testutil.TestModel{}
})
defer repo.Close()
defer func() {
t.Log("clearing collection")
if err = repo.Clear(); err != nil {
t.Fatal("there should be no error:", err)
}
}()
// TODO: Share these tests between implementations.
t.Log("FindAll with no items")
result, err := repo.FindAll()
if err != nil {
t.Error("there should be no error:", err)
}
if len(result) != 0 {
t.Error("there should be no items:", len(result))
}
t.Log("Save one item")
model1 := &testutil.TestModel{eh.NewUUID(), "model1", time.Now().Round(time.Millisecond)}
if err = repo.Save(model1.ID, model1); err != nil {
t.Error("there should be no error:", err)
}
model, err := repo.Find(model1.ID)
if err != nil {
t.Error("there should be no error:", err)
}
if !reflect.DeepEqual(model, model1) {
t.Error("the item should be correct:", model)
}
t.Log("Save and overwrite with same ID")
model1Alt := &testutil.TestModel{model1.ID, "model1Alt", time.Now().Round(time.Millisecond)}
if err = repo.Save(model1Alt.ID, model1Alt); err != nil {
t.Error("there should be no error:", err)
}
model, err = repo.Find(model1Alt.ID)
if err != nil {
t.Error("there should be no error:", err)
}
if !reflect.DeepEqual(model, model1Alt) {
t.Error("the item should be correct:", model)
}
t.Log("FindAll with one item")
result, err = repo.FindAll()
if err != nil {
t.Error("there should be no error:", err)
}
if len(result) != 1 {
t.Error("there should be one item:", len(result))
}
if !reflect.DeepEqual(result[0], model1Alt) {
t.Error("the item should be correct:", model)
}
t.Log("Save with another ID")
model2 := &testutil.TestModel{eh.NewUUID(), "model2", time.Now().Round(time.Millisecond)}
if err = repo.Save(model2.ID, model2); err != nil {
t.Error("there should be no error:", err)
}
model, err = repo.Find(model2.ID)
if err != nil {
t.Error("there should be no error:", err)
}
if !reflect.DeepEqual(model, model2) {
t.Error("the item should be correct:", model)
}
t.Log("FindAll with two items")
result, err = repo.FindAll()
if err != nil {
t.Error("there should be no error:", err)
}
if len(result) != 2 {
t.Error("there should be two items:", len(result))
}
if (!reflect.DeepEqual(result[0], model1Alt) || !reflect.DeepEqual(result[1], model2)) &&
(!reflect.DeepEqual(result[0], model2) || !reflect.DeepEqual(result[1], model1Alt)) {
t.Error("the items should be correct:", result)
}
t.Log("FindCustom by content")
result, err = repo.FindCustom(func(c *mgo.Collection) *mgo.Query {
return c.Find(bson.M{"content": "model1Alt"})
})
if len(result) != 1 {
t.Error("there should be one item:", len(result))
}
if !reflect.DeepEqual(result[0], model1Alt) {
t.Error("the item should be correct:", model)
}
t.Log("FindCustom with no query")
result, err = repo.FindCustom(func(c *mgo.Collection) *mgo.Query {
return nil
})
if err == nil || err != ErrInvalidQuery {
t.Error("there should be a invalid query error:", err)
}
count := 0
t.Log("FindCustom with query execution in the callback")
_, err = repo.FindCustom(func(c *mgo.Collection) *mgo.Query {
if count, err = c.Count(); err != nil {
t.Error("there should be no error:", err)
}
// Be sure to return nil to not execute the query again in FindCustom.
return nil
})
if err == nil || err != ErrInvalidQuery {
t.Error("there should be a invalid query error:", err)
}
if count != 2 {
t.Error("the count should be correct:", count)
}
t.Log("Remove one item")
err = repo.Remove(model1Alt.ID)
if err != nil {
t.Error("there should be no error:", err)
}
result, err = repo.FindAll()
if err != nil {
t.Error("there should be no error:", err)
}
if len(result) != 1 {
t.Error("there should be one item:", len(result))
}
if !reflect.DeepEqual(result[0], model2) {
t.Error("the item should be correct:", result[0])
}
t.Log("Remove non-existing item")
err = repo.Remove(model1Alt.ID)
if err != eh.ErrModelNotFound {
t.Error("there should be a ErrModelNotFound error:", err)
}
}
func EventStoreCommonTests(t *testing.T, store eh.EventStore) []eh.Event {
savedEvents := []eh.Event{}
t.Log("save no events")
err := store.Save([]eh.Event{}, 0)
if err != eh.ErrNoEventsToAppend {
t.Error("there shoud be a ErrNoEventsToAppend error:", err)
}
t.Log("save event, version 1")
id, _ := eh.ParseUUID("c1138e5f-f6fb-4dd0-8e79-255c6c8d3756")
event1 := &TestEvent{id, "event1"}
err = store.Save([]eh.Event{event1}, 0)
if err != nil {
t.Error("there should be no error:", err)
}
savedEvents = append(savedEvents, event1)
t.Log("save event, version 2")
err = store.Save([]eh.Event{event1}, 1)
if err != nil {
t.Error("there should be no error:", err)
}
savedEvents = append(savedEvents, event1)
t.Log("save event, version 3")
event2 := &TestEvent{id, "event2"}
err = store.Save([]eh.Event{event2}, 2)
if err != nil {
t.Error("there should be no error:", err)
}
savedEvents = append(savedEvents, event2)
t.Log("save multiple events, version 4, 5 and 6")
err = store.Save([]eh.Event{event1, event2, event1}, 3)
if err != nil {
t.Error("there should be no error:", err)
}
savedEvents = append(savedEvents, event1, event2, event1)
t.Log("save event for another aggregate")
id2, _ := eh.ParseUUID("c1138e5e-f6fb-4dd0-8e79-255c6c8d3756")
event3 := &TestEvent{id2, "event3"}
err = store.Save([]eh.Event{event3}, 0)
if err != nil {
t.Error("there should be no error:", err)
}
savedEvents = append(savedEvents, event3)
t.Log("load events for non-existing aggregate")
events, err := store.Load(eh.NewUUID())
if err != nil {
t.Error("there should be no error:", err)
}
if len(events) != 0 {
t.Error("there should be no loaded events:", eventsToString(events))
}
t.Log("load events")
events, err = store.Load(id)
if err != nil {
t.Error("there should be no error:", err)
}
if !reflect.DeepEqual(events, []eh.Event{
event1, // Version 1
event1, // Version 2
event2, // Version 3
event1, event2, event1, // Version 4, 5 and 6
}) {
t.Error("the loaded events should be correct:", eventsToString(events))
}
t.Log("load events for another aggregate")
events, err = store.Load(id2)
if err != nil {
t.Error("there should be no error:", err)
}
if !reflect.DeepEqual(events, []eh.Event{event3}) {
t.Error("the loaded events should be correct:", eventsToString(events))
}
return savedEvents
}
func Example() {
// Support Wercker testing with MongoDB.
host := os.Getenv("MONGO_PORT_27017_TCP_ADDR")
port := os.Getenv("MONGO_PORT_27017_TCP_PORT")
url := "localhost"
if host != "" && port != "" {
url = host + ":" + port
}
// Create the event store.
eventStore, err := eventstore.NewEventStore(url, "demo")
if err != nil {
log.Fatalf("could not create event store: %s", err)
}
// Create the event bus that distributes events.
eventBus := eventbus.NewEventBus()
eventBus.AddObserver(&domain.Logger{})
// Create the aggregate repository.
repository, err := eh.NewEventSourcingRepository(eventStore, eventBus)
if err != nil {
log.Fatalf("could not create repository: %s", err)
}
// Create the aggregate command handler.
handler, err := eh.NewAggregateCommandHandler(repository)
if err != nil {
log.Fatalf("could not create command handler: %s", err)
}
// Register the domain aggregates with the dispather. Remember to check for
// errors here in a real app!
handler.SetAggregate(domain.InvitationAggregateType, domain.CreateInviteCommand)
handler.SetAggregate(domain.InvitationAggregateType, domain.AcceptInviteCommand)
handler.SetAggregate(domain.InvitationAggregateType, domain.DeclineInviteCommand)
// Create the command bus and register the handler for the commands.
commandBus := commandbus.NewCommandBus()
commandBus.SetHandler(handler, domain.CreateInviteCommand)
commandBus.SetHandler(handler, domain.AcceptInviteCommand)
commandBus.SetHandler(handler, domain.DeclineInviteCommand)
// Create and register a read model for individual invitations.
invitationRepository, err := readrepository.NewReadRepository(url, "demo", "invitations")
if err != nil {
log.Fatalf("could not create invitation repository: %s", err)
}
invitationRepository.SetModel(func() interface{} { return &domain.Invitation{} })
invitationProjector := domain.NewInvitationProjector(invitationRepository)
eventBus.AddHandler(invitationProjector, domain.InviteCreatedEvent)
eventBus.AddHandler(invitationProjector, domain.InviteAcceptedEvent)
eventBus.AddHandler(invitationProjector, domain.InviteDeclinedEvent)
// Create and register a read model for a guest list.
eventID := eh.NewUUID()
guestListRepository, err := readrepository.NewReadRepository(url, "demo", "guest_lists")
if err != nil {
log.Fatalf("could not create guest list repository: %s", err)
}
guestListRepository.SetModel(func() interface{} { return &domain.GuestList{} })
guestListProjector := domain.NewGuestListProjector(guestListRepository, eventID)
eventBus.AddHandler(guestListProjector, domain.InviteCreatedEvent)
eventBus.AddHandler(guestListProjector, domain.InviteAcceptedEvent)
eventBus.AddHandler(guestListProjector, domain.InviteDeclinedEvent)
// Clear DB collections.
eventStore.Clear()
invitationRepository.Clear()
guestListRepository.Clear()
// Issue some invitations and responses.
// Note that Athena tries to decline the event, but that is not allowed
// by the domain logic in InvitationAggregate. The result is that she is
// still accepted.
athenaID := eh.NewUUID()
commandBus.HandleCommand(&domain.CreateInvite{InvitationID: athenaID, Name: "Athena", Age: 42})
commandBus.HandleCommand(&domain.AcceptInvite{InvitationID: athenaID})
err = commandBus.HandleCommand(&domain.DeclineInvite{InvitationID: athenaID})
if err != nil {
log.Printf("error: %s\n", err)
}
hadesID := eh.NewUUID()
commandBus.HandleCommand(&domain.CreateInvite{InvitationID: hadesID, Name: "Hades"})
commandBus.HandleCommand(&domain.AcceptInvite{InvitationID: hadesID})
zeusID := eh.NewUUID()
commandBus.HandleCommand(&domain.CreateInvite{InvitationID: zeusID, Name: "Zeus"})
commandBus.HandleCommand(&domain.DeclineInvite{InvitationID: zeusID})
// Read all invites.
invitations, _ := invitationRepository.FindAll()
for _, i := range invitations {
if i, ok := i.(*domain.Invitation); ok {
log.Printf("invitation: %s - %s\n", i.Name, i.Status)
fmt.Printf("invitation: %s - %s\n", i.Name, i.Status)
}
}
// Read the guest list.
l, _ := guestListRepository.Find(eventID)
if l, ok := l.(*domain.GuestList); ok {
log.Printf("guest list: %d guests (%d accepted, %d declined)\n",
l.NumGuests, l.NumAccepted, l.NumDeclined)
fmt.Printf("guest list: %d guests (%d accepted, %d declined)\n",
l.NumGuests, l.NumAccepted, l.NumDeclined)
}
// records := eventStore.FindAllEventRecords()
// fmt.Printf("event records:\n")
// for _, r := range records {
// fmt.Printf("%#v\n", r)
// }
// Output:
// invitation: Athena - accepted
// invitation: Hades - accepted
// invitation: Zeus - declined
// guest list: 3 guests (2 accepted, 1 declined)
}
func TestReadRepository(t *testing.T) {
repo := NewReadRepository()
if repo == nil {
t.Error("there should be a repository")
}
// TODO: Share these tests between implementations.
t.Log("FindAll with no items")
result, err := repo.FindAll()
if err != nil {
t.Error("there should be no error:", err)
}
if len(result) != 0 {
t.Error("there should be no items:", len(result))
}
t.Log("Save one item")
model1 := &testutil.TestModel{eh.NewUUID(), "model1", time.Now().Round(time.Millisecond)}
if err = repo.Save(model1.ID, model1); err != nil {
t.Error("there should be no error:", err)
}
model, err := repo.Find(model1.ID)
if err != nil {
t.Error("there should be no error:", err)
}
if !reflect.DeepEqual(model, model1) {
t.Error("the item should be correct:", model)
}
t.Log("Save and overwrite with same ID")
model1Alt := &testutil.TestModel{model1.ID, "model1Alt", time.Now().Round(time.Millisecond)}
if err = repo.Save(model1Alt.ID, model1Alt); err != nil {
t.Error("there should be no error:", err)
}
model, err = repo.Find(model1Alt.ID)
if err != nil {
t.Error("there should be no error:", err)
}
if !reflect.DeepEqual(model, model1Alt) {
t.Error("the item should be correct:", model)
}
t.Log("FindAll with one item")
result, err = repo.FindAll()
if err != nil {
t.Error("there should be no error:", err)
}
if len(result) != 1 {
t.Error("there should be one item:", len(result))
}
if !reflect.DeepEqual(result[0], model1Alt) {
t.Error("the item should be correct:", model)
}
t.Log("Save with another ID")
model2 := &testutil.TestModel{eh.NewUUID(), "model2", time.Now().Round(time.Millisecond)}
if err = repo.Save(model2.ID, model2); err != nil {
t.Error("there should be no error:", err)
}
model, err = repo.Find(model2.ID)
if err != nil {
t.Error("there should be no error:", err)
}
if !reflect.DeepEqual(model, model2) {
t.Error("the item should be correct:", model)
}
t.Log("FindAll with two items")
result, err = repo.FindAll()
if err != nil {
t.Error("there should be no error:", err)
}
if len(result) != 2 {
t.Error("there should be two items:", len(result))
}
if (!reflect.DeepEqual(result[0], model1Alt) || !reflect.DeepEqual(result[1], model2)) &&
(!reflect.DeepEqual(result[0], model2) || !reflect.DeepEqual(result[1], model1Alt)) {
t.Error("the items should be correct:", result)
}
t.Log("Remove one item")
err = repo.Remove(model1Alt.ID)
if err != nil {
t.Error("there should be no error:", err)
}
result, err = repo.FindAll()
if err != nil {
t.Error("there should be no error:", err)
}
if len(result) != 1 {
t.Error("there should be one item:", len(result))
}
if !reflect.DeepEqual(result[0], model2) {
t.Error("the item should be correct:", result[0])
}
t.Log("Remove non-existing item")
err = repo.Remove(model1Alt.ID)
if err != eh.ErrModelNotFound {
t.Error("there should be a ErrModelNotFound error:", err)
}
}
func main() {
// Create the event bus that distributes events.
eventBus := eventhorizon.NewInternalEventBus()
eventBus.AddGlobalHandler(&LoggerSubscriber{})
// Create the event store.
eventStore, err := eventhorizon.NewMongoEventStore(eventBus, "localhost", "demo")
if err != nil {
log.Fatalf("could not create event store: %s", err)
}
eventStore.RegisterEventType(&InviteCreated{}, func() eventhorizon.Event { return &InviteCreated{} })
eventStore.RegisterEventType(&InviteAccepted{}, func() eventhorizon.Event { return &InviteAccepted{} })
eventStore.RegisterEventType(&InviteDeclined{}, func() eventhorizon.Event { return &InviteDeclined{} })
// Create the aggregate repository.
repository, err := eventhorizon.NewCallbackRepository(eventStore)
if err != nil {
log.Fatalf("could not create repository: %s", err)
}
// Register an aggregate factory.
repository.RegisterAggregate(&InvitationAggregate{},
func(id eventhorizon.UUID) eventhorizon.Aggregate {
return &InvitationAggregate{
AggregateBase: eventhorizon.NewAggregateBase(id),
}
},
)
// Create the aggregate command handler.
handler, err := eventhorizon.NewAggregateCommandHandler(repository)
if err != nil {
log.Fatalf("could not create command handler: %s", err)
}
// Register the domain aggregates with the dispather. Remember to check for
// errors here in a real app!
handler.SetAggregate(&InvitationAggregate{}, &CreateInvite{})
handler.SetAggregate(&InvitationAggregate{}, &AcceptInvite{})
handler.SetAggregate(&InvitationAggregate{}, &DeclineInvite{})
// Create the command bus and register the handler for the commands.
commandBus := eventhorizon.NewInternalCommandBus()
commandBus.SetHandler(handler, &CreateInvite{})
commandBus.SetHandler(handler, &AcceptInvite{})
commandBus.SetHandler(handler, &DeclineInvite{})
// Create and register a read model for individual invitations.
invitationRepository, err := eventhorizon.NewMongoReadRepository("localhost", "demo", "invitations")
if err != nil {
log.Fatalf("could not create invitation repository: %s", err)
}
invitationRepository.SetModel(func() interface{} { return &Invitation{} })
invitationProjector := NewInvitationProjector(invitationRepository)
eventBus.AddHandler(invitationProjector, &InviteCreated{})
eventBus.AddHandler(invitationProjector, &InviteAccepted{})
eventBus.AddHandler(invitationProjector, &InviteDeclined{})
// Create and register a read model for a guest list.
eventID := eventhorizon.NewUUID()
guestListRepository, err := eventhorizon.NewMongoReadRepository("localhost", "demo", "guest_lists")
if err != nil {
log.Fatalf("could not create guest list repository: %s", err)
}
guestListRepository.SetModel(func() interface{} { return &GuestList{} })
guestListProjector := NewGuestListProjector(guestListRepository, eventID)
eventBus.AddHandler(guestListProjector, &InviteCreated{})
eventBus.AddHandler(guestListProjector, &InviteAccepted{})
eventBus.AddHandler(guestListProjector, &InviteDeclined{})
// Clear DB collections.
eventStore.Clear()
invitationRepository.Clear()
guestListRepository.Clear()
// Issue some invitations and responses.
// Note that Athena tries to decline the event, but that is not allowed
// by the domain logic in InvitationAggregate. The result is that she is
// still accepted.
athenaID := eventhorizon.NewUUID()
commandBus.HandleCommand(&CreateInvite{InvitationID: athenaID, Name: "Athena", Age: 42})
commandBus.HandleCommand(&AcceptInvite{InvitationID: athenaID})
err = commandBus.HandleCommand(&DeclineInvite{InvitationID: athenaID})
if err != nil {
fmt.Printf("error: %s\n", err)
}
hadesID := eventhorizon.NewUUID()
commandBus.HandleCommand(&CreateInvite{InvitationID: hadesID, Name: "Hades"})
commandBus.HandleCommand(&AcceptInvite{InvitationID: hadesID})
zeusID := eventhorizon.NewUUID()
commandBus.HandleCommand(&CreateInvite{InvitationID: zeusID, Name: "Zeus"})
commandBus.HandleCommand(&DeclineInvite{InvitationID: zeusID})
// Read all invites.
invitations, _ := invitationRepository.FindAll()
for _, i := range invitations {
fmt.Printf("invitation: %#v\n", i)
}
// Read the guest list.
guestList, _ := guestListRepository.Find(eventID)
fmt.Printf("guest list: %#v\n", guestList)
// records := eventStore.FindAllEventRecords()
// fmt.Printf("event records:\n")
// for _, r := range records {
// fmt.Printf("%#v\n", r)
// }
}
func TestEventBus(t *testing.T) {
// Support Wercker testing with MongoDB.
host := os.Getenv("REDIS_PORT_6379_TCP_ADDR")
port := os.Getenv("REDIS_PORT_6379_TCP_PORT")
url := ":6379"
if host != "" && port != "" {
url = host + ":" + port
}
bus, err := NewEventBus("test", url, "")
if err != nil {
t.Fatal("there should be no error:", err)
}
if bus == nil {
t.Fatal("there should be a bus")
}
defer bus.Close()
observer := testutil.NewMockEventObserver()
bus.AddObserver(observer)
// Another bus to test the observer.
bus2, err := NewEventBus("test", url, "")
if err != nil {
t.Fatal("there should be no error:", err)
}
defer bus2.Close()
observer2 := testutil.NewMockEventObserver()
bus2.AddObserver(observer2)
t.Log("publish event without handler")
event1 := &testutil.TestEvent{eh.NewUUID(), "event1"}
bus.PublishEvent(event1)
<-observer.Recv
if !reflect.DeepEqual(observer.Events, []eh.Event{event1}) {
t.Error("the observed events should be correct:", observer.Events)
}
<-observer2.Recv
if !reflect.DeepEqual(observer2.Events, []eh.Event{event1}) {
t.Error("the second observed events should be correct:", observer2.Events)
}
t.Log("publish event")
handler := testutil.NewMockEventHandler("testHandler")
bus.AddHandler(handler, testutil.TestEventType)
bus.PublishEvent(event1)
if !reflect.DeepEqual(handler.Events, []eh.Event{event1}) {
t.Error("the handler events should be correct:", handler.Events)
}
<-observer.Recv
if !reflect.DeepEqual(observer.Events, []eh.Event{event1, event1}) {
t.Error("the observed events should be correct:", observer.Events)
}
<-observer2.Recv
if !reflect.DeepEqual(observer2.Events, []eh.Event{event1, event1}) {
t.Error("the second observed events should be correct:", observer2.Events)
}
t.Log("publish another event")
bus.AddHandler(handler, testutil.TestEventOtherType)
event2 := &testutil.TestEventOther{eh.NewUUID(), "event2"}
bus.PublishEvent(event2)
if !reflect.DeepEqual(handler.Events, []eh.Event{event1, event2}) {
t.Error("the handler events should be correct:", handler.Events)
}
<-observer.Recv
if !reflect.DeepEqual(observer.Events, []eh.Event{event1, event1, event2}) {
t.Error("the observed events should be correct:", observer.Events)
}
<-observer2.Recv
if !reflect.DeepEqual(observer2.Events, []eh.Event{event1, event1, event2}) {
t.Error("the second observed events should be correct:", observer2.Events)
}
}
