I am facing two issues with my jest test:
- Is there a way to define the
Contentcollection only once instead of repeating it inside the test? I encountered this error:
Jest did not exit one second after the test run has completed. This usually indicates that there are unresolved asynchronous operations in the tests. Try running Jest with
--detectOpenHandlesflag to debug this problem.
I'm puzzled as to why my async code is not being stopped...
import resolvers from 'resolvers/'
import Db from 'lib/db'
const db = new Db()
describe('Resolver', () => {
let token
beforeAll(async () => {
await db.connect()
})
beforeEach(async () => {
token = 'string'
await db.dropDB()
})
afterAll(async () => {
await db.connection.close()
})
describe('articleGetContent()', () => {
test('should return dataset', async () => {
// SETUP
const Content = db.connection.collection('content')
const docs = [{
// some content...
}]
await Content.insertMany(docs)
// EXECUTE
const result = await resolvers.Query.articleGetContent({}, {
id: '123,
language: 'en'
}, {
token
})
// VERIFY
expect.assertions(1)
expect(result).toBeDefined()
})
})
})
resolver
import { articleGetContent } from '../models/article'
export default {
Query: {
articleGetContent: async (obj, { id }, { token }) => articleGetContent(id, token)
}
}
This is what my db class looks like
db.js
export default class Db {
constructor (uri, callback) {
const mongo = process.env.MONGO || 'mongodb://localhost:27017'
this.mongodb = process.env.MONGO_DB || 'testing'
this.gfs = null
this.connection = MongoClient.connect(mongo, { useNewUrlParser: true })
this.connected = false
return this
}
async connect (msg) {
if (!this.connected) {
try {
this.connection = await this.connection
this.connection = this.connection.db(this.mongodb)
this.gfs = new mongo.GridFSBucket(this.connection)
this.connected = true
} catch (err) {
console.error('mongo connection error', err)
}
}
return this
}
async disconnect () {
if (this.connected) {
try {
this.connection = await this.connection.close()
this.connected = false
} catch (err) {
console.error('mongo disconnection error', err)
}
}
}
async dropDB () {
const Content = this.connection.collection('content')
await Content.deleteMany({})
}
}