mongodb-memory-server
Manage & spin up mongodb server binaries with zero(or slight) configuration for tests.
Easy to Use
mongodb-memory-server was build with "easy-to-use" in mind and is in most common systems zero-configuration. (except setting a custom mongodb version)
Supports all MongoDB supports systems
mongodb-memory-server supporst all systems there are mongodb binaries are for, including some unofficial environments where some other binary works.
Supports both Single-Instance and Replica Sets
mongodb-memory-server can be quickly used with single mongodb instances or spin up a entire replicaset.