操作不正确的状态：“新的”允许状态：“ [运行，启动]”

Question

我正在测试只有一个测试案例。我验证了mongodb方法，它们似乎要达到 日期。 Github也没有开放问题。

Error:    at MongoMemoryServer.getUri (node_modules/mongodb-memory-server- 
          core/src/MongoMemoryServer.ts:706:15)
          at src/test/setup.ts:7:32
          at src/test/setup.ts:8:71
          at Object.<anonymous>.__awaiter (src/test/setup.ts:4:12)
          at Object.<anonymous> (src/test/setup.ts:5:22)   



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

let mongo: any;
beforeAll(async () => {
  mongo = new MongoMemoryServer();
  const mongoUri = await mongo.getUri();
  await mongoose.connect(mongoUri);
});

beforeEach(async () => {
  const collections = await mongoose.connection.db.collections();
  for (let collection of collections) {
    await collection.deleteMany({});
  }
});

afterAll(async () => {
  await mongo.stop();
  await mongoose.connection.close();
});

Answer 1

频道行 mongo = new Mongomemoryserver（）; to mongo =等待mongomemoryserver.create（）

Answer 2

我遇到了同样的问题，然后查看我想知道您首先必须使用 new 创建对象，然后使用start（）启动实例：

mongod = new MongoMemoryServer()
await mongod.start()

const uri = await mongod.getUri()

const mongooseOptions = {
    useNewUrlParser:true,
};

await mongoose.connect(uri,mongooseOptions)

Answer 3

您有2个解决此问题的选项：

1-更改行：

mongo = new MongoMemoryServer(); 

TO：

mongo = await MongoMemoryServer.create();

2-更改行：

 mongo = new MongoMemoryServer();
 const mongoUri = await mongo.getUri();
 await mongoose.connect(mongoUri);

to：：

mongod = new MongoMemoryServer()
await mongod.start()

const uri = await mongod.getUri()

const mongooseOptions = {
useNewUrlParser:true,
};

await mongoose.connect(uri, mongooseOptions)

Answer 4

mongod = new MongoMemoryServer();
await mongod.start();
const mongoUri = await mongod.getUri();
await mongoose.connect(mongoUri);