mongoose.connect(), first argument should be String, received undefined

Question

I am trying to set the test database for the testing purpose, but its not working.

I am trying to connect to mongodb using mongoose, but finding problem in connection er

Answer 1

I had same error, for me it was because I was trying to use environment variables in globalSetup which had the file for initiating db connection.. mongoose.connect(global.__MONGO_URI__

Apparently, environment variables are not initialised yet in globalSetup so I had to move the code somewhere else, either to setupFilesAfterEnv or by using Async Test Environment