Settings Jest + Mongodb

Question

I am studying jest and stuck in a part in the course where it is made the configuration of the project to run the jest next to the mongodb.

I’m using the dependency @Shelf/jest-mongodb.

jest-mongodb-config.js

module.exports = {
  mongodbMemoryServerOptions: {
    binary: {
      version: '4.0.3',
      skipMD5: true
    },
    instance: {
      dbName: 'jest'
    },
    autoStart: false
  }
}

jest-config.js

module.exports = {
  roots: ['<rootDir>/src'],
  collectCoverageFrom: ['<rootDir>/src/**/*.ts'],
  coverageDirectory: 'coverage',
  testEnvironment: 'node',
  preset: '@shelf/jest-mongodb',
  transform: {
    '.+\\.ts$': 'ts-jest'
  }
}

Mongo-helper.ts

import { MongoClient } from 'mongodb'

export const MongoHelper = {
  client: null as MongoClient,

  async connect (uri: string): Promise<void> {
    this.client = await MongoClient.connect(uri, {
      useNewUrlParser: true,
      useUnifiedTopology: true
    })
  },

  async disconnect (): Promise<void> {
    await this.client.close()
  }
}

excerpt from Account.spec.ts file that makes the connection

  beforeAll(async () => {
    await MongoHelper.connect(process.env.MONGO_URL)
  })

  afterAll(async () => {
    await MongoHelper.disconnect()
  })

But while running the test, I’m getting the error:

Determining test suites to run...Starting the instance failed, please enable debug for more infomation


  ● Test suite failed to run

    Status Code is 403 (MongoDB's 404)
    This means that the requested version-platform combination doesn't exist

      at ClientRequest.<anonymous> (node_modules/mongodb-memory-server-core/lib/util/MongoBinaryDownload.js:378:44)

I tried something I saw in some posts to include in my package.json the section below, but the result is the same.

"config": {
  "mongodbMemoryServer": {
    "version": "latest"
  }
}

Answer 1

Hello, I was also having the same problem. "Latest" also didn’t work for me.

Use instead of "Latest" the current version number:

"config": {
  "mongodbMemoryServer": {
    "version": "4.4.1"
  }
}

For more questions https://github.com/nodkz/mongodb-memory-server/issues/316

I hope I’ve helped.