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feat(server): adding event emitter (#2269)
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,2 +1,6 @@ | ||
| dataStore: | ||
| --- | ||
| type: DataStore | ||
| spec: | ||
| name: OpenTelemetry Collector | ||
| type: otlp | ||
| isdefault: true |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,38 @@ | ||
| package executor | ||
|
|
||
| import ( | ||
| "context" | ||
|
|
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| "github.com/kubeshop/tracetest/server/model" | ||
| ) | ||
|
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| type EventEmitter interface { | ||
| Emit(ctx context.Context, event model.TestRunEvent) error | ||
| } | ||
|
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| type publisher interface { | ||
| Publish(eventID string, message any) | ||
| } | ||
|
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| type internalEventEmitter struct { | ||
| repository model.TestRunEventRepository | ||
| publisher publisher | ||
| } | ||
|
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| func NewEventEmitter(repository model.TestRunEventRepository, publisher publisher) EventEmitter { | ||
| return &internalEventEmitter{ | ||
| repository: repository, | ||
| publisher: publisher, | ||
| } | ||
| } | ||
|
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| func (em *internalEventEmitter) Emit(ctx context.Context, event model.TestRunEvent) error { | ||
| err := em.repository.CreateTestRunEvent(ctx, event) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
|
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| em.publisher.Publish(event.ResourceID(), event) | ||
|
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| return nil | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,153 @@ | ||
| package executor_test | ||
|
|
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| import ( | ||
| "context" | ||
| "errors" | ||
| "testing" | ||
|
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| "github.com/kubeshop/tracetest/server/executor" | ||
| "github.com/kubeshop/tracetest/server/id" | ||
| "github.com/kubeshop/tracetest/server/model" | ||
| "github.com/kubeshop/tracetest/server/subscription" | ||
| "github.com/kubeshop/tracetest/server/testdb" | ||
| "github.com/stretchr/testify/assert" | ||
| "github.com/stretchr/testify/require" | ||
| ) | ||
|
|
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| func TestEventEmitter_SuccessfulScenario(t *testing.T) { | ||
| // Given I have a test run event | ||
|
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| run := model.NewRun() | ||
|
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| test := model.Test{ | ||
| ID: id.ID("some-test"), | ||
| ServiceUnderTest: model.Trigger{ | ||
| Type: model.TriggerTypeHTTP, | ||
| }, | ||
| } | ||
|
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| testRunEvent := model.TestRunEvent{ | ||
| TestID: test.ID, | ||
| RunID: run.ID, | ||
| Type: "EVENT_1", | ||
| Stage: model.StageTrigger, | ||
| Title: "OP 1", | ||
| Description: "This happened", | ||
| } | ||
|
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| // When I emit this event successfully | ||
| repository := getTestRunEventRepositoryMock(t, false) | ||
| subscriptionManager, subscriber := getSubscriptionManagerMock(t, testRunEvent) | ||
|
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| eventEmitter := executor.NewEventEmitter(repository, subscriptionManager) | ||
|
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| err := eventEmitter.Emit(context.Background(), testRunEvent) | ||
| require.NoError(t, err) | ||
|
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| // Then I expect that it was persisted | ||
| assert.Len(t, repository.events, 1) | ||
| assert.Equal(t, testRunEvent.Title, repository.events[0].Title) | ||
| assert.Equal(t, testRunEvent.Stage, repository.events[0].Stage) | ||
| assert.Equal(t, testRunEvent.Description, repository.events[0].Description) | ||
|
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| // And that it was sent to subscribers | ||
| assert.Len(t, subscriber.events, 1) | ||
| assert.Equal(t, testRunEvent.Title, subscriber.events[0].Title) | ||
| assert.Equal(t, testRunEvent.Stage, subscriber.events[0].Stage) | ||
| assert.Equal(t, testRunEvent.Description, subscriber.events[0].Description) | ||
| } | ||
|
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| func TestEventEmitter_FailedScenario(t *testing.T) { | ||
| // Given I have a test run event | ||
|
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| run := model.NewRun() | ||
|
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| test := model.Test{ | ||
| ID: id.ID("some-test"), | ||
| ServiceUnderTest: model.Trigger{ | ||
| Type: model.TriggerTypeHTTP, | ||
| }, | ||
| } | ||
|
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| testRunEvent := model.TestRunEvent{ | ||
| TestID: test.ID, | ||
| RunID: run.ID, | ||
| Type: "EVENT_1", | ||
| Stage: model.StageTrigger, | ||
| Title: "OP 1", | ||
| Description: "This happened", | ||
| } | ||
|
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| // When I emit this event and it fails | ||
| repository := getTestRunEventRepositoryMock(t, true) | ||
| subscriptionManager, subscriber := getSubscriptionManagerMock(t, testRunEvent) | ||
|
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| eventEmitter := executor.NewEventEmitter(repository, subscriptionManager) | ||
|
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| err := eventEmitter.Emit(context.Background(), testRunEvent) | ||
| require.Error(t, err) | ||
|
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| // Then I expect that it was not persisted | ||
| assert.Len(t, repository.events, 0) | ||
|
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| // And that it was not sent to subscribers | ||
| assert.Len(t, subscriber.events, 0) | ||
| } | ||
|
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| // TestRunEventRepository | ||
| type testRunEventRepositoryMock struct { | ||
| testdb.MockRepository | ||
| events []model.TestRunEvent | ||
| returnError bool | ||
| // ... | ||
| } | ||
|
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| func (m *testRunEventRepositoryMock) CreateTestRunEvent(ctx context.Context, event model.TestRunEvent) error { | ||
| if m.returnError { | ||
| return errors.New("error on persistence") | ||
| } | ||
|
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| m.events = append(m.events, event) | ||
| return nil | ||
| } | ||
|
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| func getTestRunEventRepositoryMock(t *testing.T, returnError bool) *testRunEventRepositoryMock { | ||
| t.Helper() | ||
|
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| mock := new(testRunEventRepositoryMock) | ||
| mock.T = t | ||
| mock.Test(t) | ||
|
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| mock.events = []model.TestRunEvent{} | ||
| mock.returnError = returnError | ||
|
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| return mock | ||
| } | ||
|
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| // TestRunEventSubscriber | ||
| type testRunEventSubscriber struct { | ||
| events []model.TestRunEvent | ||
| } | ||
|
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| func (s *testRunEventSubscriber) ID() string { | ||
| return "some-id" | ||
| } | ||
|
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| func (s *testRunEventSubscriber) Notify(message subscription.Message) error { | ||
| event := message.Content.(model.TestRunEvent) | ||
| s.events = append(s.events, event) | ||
| return nil | ||
| } | ||
|
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| func getSubscriptionManagerMock(t *testing.T, event model.TestRunEvent) (*subscription.Manager, *testRunEventSubscriber) { | ||
| t.Helper() | ||
|
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| subscriptionManager := subscription.NewManager() | ||
| subscriber := &testRunEventSubscriber{ | ||
| events: []model.TestRunEvent{}, | ||
| } | ||
|
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| subscriptionManager.Subscribe(event.ResourceID(), subscriber) | ||
|
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| return subscriptionManager, subscriber | ||
| } |
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