add test

Author: ckoegel

tests/unit/models/callback-type-enum.test.ts

@@ -0,0 +1,10 @@
+import { CallbackTypeEnum } from '../../../models/callback-type-enum';
+
+describe('CallbackTypeEnum', () => {
+    test('should define the expected values', () => {
+        expect(CallbackTypeEnum.Received).toBe('message-received');
+        expect(CallbackTypeEnum.Delivered).toBe('message-delivered');
+        expect(CallbackTypeEnum.Failed).toBe('message-failed');
+        expect(CallbackTypeEnum.Sending).toBe('message-sending');
+    });
+});