56 lines
1.7 KiB
TypeScript
56 lines
1.7 KiB
TypeScript
import { Test, TestingModule } from '@nestjs/testing';
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import { HealthCheckError, HealthIndicatorResult } from '@nestjs/terminus';
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import { RepositoriesHealthIndicatorUseCase } from '../../domain/usecases/repositories.health-indicator.usecase';
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import { AdRepository } from '../../../ad/adapters/secondaries/ad.repository';
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const mockAdRepository = {
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healthCheck: jest
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.fn()
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.mockImplementationOnce(() => {
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return Promise.resolve(true);
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})
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.mockImplementation(() => {
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throw new Error('an error occured in the repository');
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}),
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};
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describe('RepositoriesHealthIndicatorUseCase', () => {
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let repositoriesHealthIndicatorUseCase: RepositoriesHealthIndicatorUseCase;
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beforeAll(async () => {
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const module: TestingModule = await Test.createTestingModule({
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providers: [
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RepositoriesHealthIndicatorUseCase,
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{
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provide: AdRepository,
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useValue: mockAdRepository,
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},
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],
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}).compile();
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repositoriesHealthIndicatorUseCase =
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module.get<RepositoriesHealthIndicatorUseCase>(
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RepositoriesHealthIndicatorUseCase,
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);
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});
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it('should be defined', () => {
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expect(repositoriesHealthIndicatorUseCase).toBeDefined();
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});
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describe('execute', () => {
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it('should check health successfully', async () => {
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const healthIndicatorResult: HealthIndicatorResult =
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await repositoriesHealthIndicatorUseCase.isHealthy('repositories');
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expect(healthIndicatorResult['repositories'].status).toBe('up');
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});
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it('should throw an error if database is unavailable', async () => {
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await expect(
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repositoriesHealthIndicatorUseCase.isHealthy('repositories'),
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).rejects.toBeInstanceOf(HealthCheckError);
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});
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});
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});
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