Add method to assert an event has been dispatched

pkg/events/events.go

@@ -80,6 +80,7 @@ func InitEvents() (err error) {
 
 func Publish(event Event) error {
 	if isUnderTest {
+		dispatchedTestEvents = append(dispatchedTestEvents, event)
 		return nil
 	}
 

pkg/events/testing.go

@@ -16,11 +16,33 @@
 
 package events
 
-var isUnderTest bool
+import (
+	"github.com/stretchr/testify/assert"
+	"testing"
+)
+
+var (
+	isUnderTest          bool
+	dispatchedTestEvents []Event
+)
 
 // Fake sets up the "test mode" of the events package. Typically you'd call this function in the TestMain function
 // in the package you're testing. It will prevent any events from being fired, instead they will be recorded and be
 // available for assertions.
 func Fake() {
 	isUnderTest = true
+	dispatchedTestEvents = nil
+}
+
+// AssertDispatched asserts an event has been dispatched.
+func AssertDispatched(t *testing.T, event Event) {
+	var found bool
+	for _, testEvent := range dispatchedTestEvents {
+		if event.TopicName() == testEvent.TopicName() {
+			found = true
+			break
+		}
+	}
+
+	assert.True(t, found, "Failed to assert "+event.TopicName()+" has been dispatched.")
 }

pkg/models/tasks_test.go

@@ -17,6 +17,7 @@
 package models
 
 import (
+	"code.vikunja.io/api/pkg/events"
 	"testing"
 	"time"
 
@@ -65,6 +66,7 @@ func TestTask_Create(t *testing.T) {
 			"bucket_id":     1,
 		}, false)
 
+		events.AssertDispatched(t, &TaskCreatedEvent{})
 	})
 	t.Run("empty title", func(t *testing.T) {
 		db.LoadAndAssertFixtures(t)