Running Mongoid Tests

Quick Start

The test suite requires shared tooling that is stored in a separate repository and is referenced as a submodule. After checking out the desired driver branch, check out the matching submodules:

git submodule init
git submodule update

Spin up a MongoDB deployment against which to run the Mongoid specs. Mongoid specs support a variety of MongoDB topologies, but the simplest is a single MongoDB instance:

# Launch mongod in one terminal
mkdir /tmp/mdb
mongod --dbpath /tmp/mdb

Run the test suite in a separate terminal:

rake

Caveats

"Too many open files" error

On MacOS, you may encounter a "Too many open files" error on the MongoDB server when running the tests. If this happens, stop the server, run the command ulimit -n 10000 in the same terminal session as the server, and restart the server. This will increase the number of files that can be opened. Then, re-run the tests.