class_docstr: MongoDB backend tests
code: def create_db(self):
      try:
          from ipyparallel.controller.mongodb import MongoDB
  
          return MongoDB(database="iptestdb", _connection=c)
      except Exception:
          pytest.skip("Couldn't connect to mongodb")
  
file_path: ipyparallel/ipyparallel/tests/test_mongodb.py
imports: import os
  from unittest import TestCase
  import pytest
  from .None import test_db
label_desc: Use image node_id 1 for calling the TestMongoBackend obj's underlying member method code with example usage: obj.create_db() and returns: MongoDB