开玩笑 RabbitMq AmqpConnection 模拟失败

Question

我正在开发一个与 RabbitMQ 交互的 NestJS 应用程序。我已经为我的一个 API 编写了测试用例，并且正在尝试模拟 AmqpConnection。然而，由于某种原因，测试仍在调用实际的 RabbitMQ。这是我的代码：

MyControllerSpec.ts

describe('MyController', () => {
    let app
    let module: TestingModule
    

    beforeEach(async () => {
        jest.clearAllMocks()

        module = await Test.createTestingModule({
            controllers: [MyController],
            imports: [AppModule],
            providers: [
                {
                    provide: AmqpConnection,
                    useClass: MockAmqpConnection
                }
            ]
        }).compile()

        app = module.createNestApplication()
        await app.init()
    }, 10000)

    afterAll(async () => {
        await app.close()
    })

    it('should be defined', () => {
        const controller = module.get<MyController>(
            MyController
        )
        expect(controller).toBeDefined()
    })

    it('should call MyService.get with queryParams', async () => {
        //code
    })
})

创建了一个 MockAmqpConnection 文件 MockAmqpConnection

class MockAmqpConnection {
    private _connected: boolean = true
    get connected(): boolean {
        return true
    }
    async connect(): Promise<void> {
        this._connected = true
    }
    async disconnect(): Promise<void> {
        this._connected = false
    }
}

export { MockAmqpConnection }

当我运行测试时，它显示以下错误

Please migrate your code to use AWS SDK for JavaScript (v3).
For more information, check the migration guide at https://a.co/7PzMCcy
(Use `node --trace-warnings ...` to show where the warning was created)
[Nest] 32466  - 05/09/2024, 10:27:07 AM   ERROR [AmqpConnection] Disconnected from RabbitMQ broker (default)
Error: getaddrinfo ENOTFOUND <actual rabitmq url>

Error: Failed to connect to a RabbitMQ broker within a timeout of 5000ms

    at workspace-nestjs/n1ab/node_modules/@golevelup/nestjs-rabbitmq/src/amqp/connection.ts:192:17

尝试过的解决方案：

1. Jest 中的 NestJS 模拟 RabbitMQ

2. jest.mock('../../service/rabbitmq.health.indicator', () => { 返回 { RabbitmqHealthIndicator: jest.fn().mockImplementation(() => ({ isHealthy: jest.fn().mockResolvedValue({ status: 'up' }) }）） } })

3. 类型模拟类型 = { [P in keyof T]?: jest.Mock<{}> }

   const mockFactory: () => MockType = jest.fn(() => ({ 发布：jest.fn(() => AmqpConnection) }))

我是玩笑测试的新手。我错过了什么吗？

Answer 1

终于我找到了解决方案。我已经为我的测试环境创建了一个模拟基本配置。它看起来像这样

jest.mock('../../../config/baseConfig', () => ({
    default: () => testEnvironmentConfiguration.baseConfig
}))