Listen to user.deleted events to delete the corresponding user ads

tests/unit/ad/core/delete-user-ads.service.spec.ts

@@ -0,0 +1,53 @@
+import { DeleteUserAdsCommand } from '@modules/ad/core/application/commands/delete-user-ads/delete-user-ads.command';
+import { DeleteUserAdsService } from '@modules/ad/core/application/commands/delete-user-ads/delete-user-ads.service';
+import { AdEntity } from '@modules/ad/core/domain/ad.entity';
+import { CommandBus, QueryBus } from '@nestjs/cqrs';
+import { Test, TestingModule } from '@nestjs/testing';
+import { punctualPassengerCreateAdProps } from './ad.fixtures';
+
+const userAds = [
+  AdEntity.create(punctualPassengerCreateAdProps()),
+  AdEntity.create(punctualPassengerCreateAdProps()),
+];
+
+const mockQueryBus = {
+  execute: jest.fn().mockImplementation(() => userAds),
+};
+
+const mockCommandBus = {
+  execute: jest.fn(),
+};
+
+describe('delete-user-ads.service', () => {
+  let deleteUserAdsService: DeleteUserAdsService;
+
+  beforeAll(async () => {
+    const module: TestingModule = await Test.createTestingModule({
+      providers: [
+        {
+          provide: QueryBus,
+          useValue: mockQueryBus,
+        },
+        {
+          provide: CommandBus,
+          useValue: mockCommandBus,
+        },
+        DeleteUserAdsService,
+      ],
+    }).compile();
+
+    deleteUserAdsService =
+      module.get<DeleteUserAdsService>(DeleteUserAdsService);
+  });
+
+  it('should be defined', () => {
+    expect(deleteUserAdsService).toBeDefined();
+  });
+
+  it('should call the delete command for each ad returned by the query', async () => {
+    await deleteUserAdsService.execute(
+      new DeleteUserAdsCommand({ id: userAds[0].getProps().userId }),
+    );
+    expect(mockCommandBus.execute).toHaveBeenCalledTimes(userAds.length);
+  });
+});

tests/unit/ad/interface/user-deleted.message-handler.spec.ts

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+import { UserDeletedMessageHandler } from '@modules/ad/interface/message-handlers/user-deleted.message-handler';
+import { CommandBus } from '@nestjs/cqrs';
+import { Test, TestingModule } from '@nestjs/testing';
+
+const mockCommandBus = {
+  execute: jest.fn(),
+};
+
+describe('Matcher Ad Created Message Handler', () => {
+  let userDeletedMessageHandler: UserDeletedMessageHandler;
+
+  beforeAll(async () => {
+    const module: TestingModule = await Test.createTestingModule({
+      providers: [
+        {
+          provide: CommandBus,
+          useValue: mockCommandBus,
+        },
+        UserDeletedMessageHandler,
+      ],
+    }).compile();
+
+    userDeletedMessageHandler = module.get<UserDeletedMessageHandler>(
+      UserDeletedMessageHandler,
+    );
+  });
+
+  afterEach(async () => {
+    jest.clearAllMocks();
+  });
+
+  it('should be defined', () => {
+    expect(userDeletedMessageHandler).toBeDefined();
+  });
+
+  it('should call the command bus', async () => {
+    const userId = '4eb6a6af-ecfd-41c3-9118-473a507014d4';
+    const userDeletedMessage = `{"id":"${userId}"}`;
+    await userDeletedMessageHandler.userDeleted(userDeletedMessage);
+    expect(mockCommandBus.execute).toHaveBeenCalledTimes(1);
+    expect(mockCommandBus.execute.mock.lastCall[0].id).toBe(userId);
+  });
+});