redstone-cache-layer/test/helpers/test-db.ts

import mongoose from 'mongoose';
import { MongoMemoryServer } from 'mongodb-memory-server';

let mongo: MongoMemoryServer;

export const connect = async () => {
  mongo = await MongoMemoryServer.create();
  const uri = mongo.getUri();
  await mongoose.connect(uri);
};

export const closeDatabase = async () => {
  await mongoose.connection.dropDatabase();
  await mongoose.connection.close();
  await mongo.stop();
};