test.js

import ava from 'ava'
import nanoid from 'nanoid'
import mongoose from 'mongoose'

/*
  test wrapper for ava
  creates new database and drops it afterwards
*/
export const test = (message, cb) =>
  ava(message, async (t) => {
    const db = await mongoose.createConnection(`mongodb://localhost/test-${nanoid(5)}`)

    try {
      await cb(t, { db })
    } catch (error) {
      throw error
    } finally {
      await db.connection.dropDatabase()
      await db.connection.close()
    }
  })