publish integration event when an ad is updated

tests/unit/ad/core/publish-message-when-ad-is-updated.domain-event-handler.spec.ts

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+import {
+  AD_MESSAGE_PUBLISHER,
+  OUTPUT_DATETIME_TRANSFORMER,
+  TIMEZONE_FINDER,
+  TIME_CONVERTER,
+} from '@modules/ad/ad.di-tokens';
+import { AdMapper } from '@modules/ad/ad.mapper';
+import { PublishMessageWhenAdIsUpdatedDomainEventHandler } from '@modules/ad/core/application/event-handlers/publish-message-when-ad-is-updated.domain-event-handler';
+import { AdEntity } from '@modules/ad/core/domain/ad.entity';
+import { AdUpdatedDomainEvent } from '@modules/ad/core/domain/events/ad.domain-event';
+import { OutputDateTimeTransformer } from '@modules/ad/infrastructure/output-datetime-transformer';
+import { TimeConverter } from '@modules/ad/infrastructure/time-converter';
+import { TimezoneFinder } from '@modules/ad/infrastructure/timezone-finder';
+import { Test, TestingModule } from '@nestjs/testing';
+import { punctualPassengerCreateAdProps } from './ad.fixtures';
+
+const mockMessagePublisher = {
+  publish: jest.fn(),
+};
+
+describe('Publish message when ad is updated domain event handler', () => {
+  let updatedDomainEventHandler: PublishMessageWhenAdIsUpdatedDomainEventHandler;
+
+  beforeAll(async () => {
+    const module: TestingModule = await Test.createTestingModule({
+      providers: [
+        {
+          provide: AD_MESSAGE_PUBLISHER,
+          useValue: mockMessagePublisher,
+        },
+        {
+          provide: OUTPUT_DATETIME_TRANSFORMER,
+          useClass: OutputDateTimeTransformer,
+        },
+        {
+          provide: TIMEZONE_FINDER,
+          useClass: TimezoneFinder,
+        },
+        {
+          provide: TIME_CONVERTER,
+          useClass: TimeConverter,
+        },
+        AdMapper,
+        PublishMessageWhenAdIsUpdatedDomainEventHandler,
+      ],
+    }).compile();
+
+    updatedDomainEventHandler =
+      module.get<PublishMessageWhenAdIsUpdatedDomainEventHandler>(
+        PublishMessageWhenAdIsUpdatedDomainEventHandler,
+      );
+  });
+
+  it('should publish a message', () => {
+    expect(updatedDomainEventHandler).toBeDefined();
+    const ad = AdEntity.create(punctualPassengerCreateAdProps());
+    const adUpdatedDomainEvent = new AdUpdatedDomainEvent(ad);
+    updatedDomainEventHandler.handle(adUpdatedDomainEvent);
+    expect(mockMessagePublisher.publish).toHaveBeenCalledTimes(1);
+  });
+});