Hi,

I am running test suite of BSON with minitest and Ruby 1.9.3. So when I did:

sed -i "/gem 'test-unit'/ d" test/bson/test_helper.rb

testrb -Ilib test/**/*_test.rb

the test suite finished just fine:

Finished tests in 0.317522s, 428.3172 tests/s, 982.6100 assertions/s.
136 tests, 312 assertions, 0 failures, 0 errors, 0 skips

Could you please enlighten me why are you using this hard dependency on unit-test when default Ruby's framework works just fine? This was introduced in https://github.com/mongodb/mongo-ruby-driver/commit/12e1af0c3dfcada167264faa113f2407a44f2091#test/bson/test_helper.rb