working version, with basic tests

src/modules/health/tests/unit/message-publisher.spec.ts

@@ -1,6 +1,6 @@
+import { MessagePublisher } from '@modules/health/infrastructure/message-publisher';
 import { Test, TestingModule } from '@nestjs/testing';
-import { MessagePublisher } from '../../adapters/secondaries/message-publisher';
-import { MESSAGE_BROKER_PUBLISHER } from '../../../../app.constants';
+import { MESSAGE_BROKER_PUBLISHER } from '@src/app.constants';
 
 const mockMessageBrokerPublisher = {
   publish: jest.fn().mockImplementation(),

src/modules/health/tests/unit/repositories.health-indicator.usecase.spec.ts

@@ -1,19 +1,25 @@
 import { Test, TestingModule } from '@nestjs/testing';
 import { HealthCheckError, HealthIndicatorResult } from '@nestjs/terminus';
-import { RepositoriesHealthIndicatorUseCase } from '../../domain/usecases/repositories.health-indicator.usecase';
-import { AdsRepository } from '../../../ad/adapters/secondaries/ads.repository';
+import { RepositoriesHealthIndicatorUseCase } from '../../core/usecases/repositories.health-indicator.usecase';
+import { AD_REPOSITORY } from '@modules/health/health.di-tokens';
+import { MESSAGE_PUBLISHER } from '@src/app.constants';
+import { DatabaseErrorException } from '@libs/exceptions';
 
-const mockAdsRepository = {
+const mockAdRepository = {
   healthCheck: jest
     .fn()
     .mockImplementationOnce(() => {
       return Promise.resolve(true);
     })
     .mockImplementation(() => {
-      throw new Error('an error occured in the repository');
+      throw new DatabaseErrorException('an error occured in the database');
     }),
 };
 
+const mockMessagePublisher = {
+  publish: jest.fn().mockImplementation(),
+};
+
 describe('RepositoriesHealthIndicatorUseCase', () => {
   let repositoriesHealthIndicatorUseCase: RepositoriesHealthIndicatorUseCase;
 
@@ -22,8 +28,12 @@ describe('RepositoriesHealthIndicatorUseCase', () => {
       providers: [
         RepositoriesHealthIndicatorUseCase,
         {
-          provide: AdsRepository,
-          useValue: mockAdsRepository,
+          provide: AD_REPOSITORY,
+          useValue: mockAdRepository,
+        },
+        {
+          provide: MESSAGE_PUBLISHER,
+          useValue: mockMessagePublisher,
         },
       ],
     }).compile();
@@ -42,7 +52,6 @@ describe('RepositoriesHealthIndicatorUseCase', () => {
     it('should check health successfully', async () => {
       const healthIndicatorResult: HealthIndicatorResult =
         await repositoriesHealthIndicatorUseCase.isHealthy('repositories');
-
       expect(healthIndicatorResult['repositories'].status).toBe('up');
     });