jest is not terminating, giving error when used jest with mongo-mock

[sagargadekar601]

I am getting below error when I run 'npm run test' :

"Jest did not exit one second after the test run has completed.

This usually means that there are asynchronous operations that weren't stopped in your tests. Consider running Jest with --detectOpenHandles to troubleshoot this issue."

Tried running jest with --detectOpenHandles but still the same issue. Below is my code :

var mongodb = require("mongo-mock"); mongodb.max_delay = 10; //you can choose to NOT pretend to be async (default is 400ms) var MongoClient = mongodb.MongoClient; MongoClient.persist = "mongo.js"; //persist the data to disk

// Connection URL var url = "mongodb://localhost:27017/myproject";

describe("test set", () => { beforeAll(done => { // Use connect method to connect to the Server MongoClient.connect( url, { sslValidate: false, useNewUrlParser: true, sslCA: fs.readFileSync("./rds-combined-ca-bundle.certs") }, async function (err, client) { if (err) { debug(Failed to connect to the database. ${err.stack}); } else { app.locals.dbClient = client; done(); } } ); //done(); });

afterAll(done => { // Closing the DB connection allows Jest to exit successfully. try { app.locals.dbClient.db().close(); app.locals.dbClient.close(); done(); } catch (error) { console.log(error); done(); } // done() });

describe('POST request', () => { test("test POST query", async () => { var bodyData = mockData.test_SingleData; var response = await request .post(/) .send(bodyData); expect(response.statusCode).toBe(200); //done(); }); });

});

test case run successfully but somehow its not turminated,. Help please.

[beamery-tomht]

I have exactly the same issue.

My tests are hanging and if I log the steps I can see that the beforeEach block isn't respecting your "async" code.

      beforeEach((done) => {
        const db = STUBS.mongoClient.db();
        const collection = db.collection('foo'); // executes before the test. Good.
        collection.insertMany(
          [foo1, foo2],
          () => {
            const j = collection.toJSON(); // executes after the test... Bad!
            done();
          },
        );
      }, 10000);

Also with async, same behaviour

      beforeEach(async () => {
        const db = await STUBS.mongoClient.db();
        const collection = db.collection('foo'); // executes before the test
        await collection.insertMany([foo1, foo2]);
        const j = collection.toJSON(); // executes AFTER the test...
      });

Seems like some internal promise hacking is conflicting with jest.

[ollixx]

this works for me:

describe('test using mongo-mock', () => {
    var db, client;

    beforeAll(async () => {
        var mongoUrl = process.env.MONGODB_URL || 'mongodb://localhost:27017/myproject';
        client = await mongoClient.connect(mongoUrl, {});
        db = client.db();
        var collection = db.collection('documents');
       // prepare data ....
    });

    afterAll(() => {
        db.close();
        client.close();
    });

    // tests come here....
});