Use mongo-qa only if it is in a "sister directory", not a subdirectory.

.gitignore

@@ -3,4 +3,3 @@ t
 pkg
 doc
 mongo-ruby-driver-*.gem
-mongo-qa

README.rdoc

@@ -133,17 +133,16 @@ The tests assume that the Mongo database is running on the default port.
 
 The project mongo-qa (http://github.com/mongodb/mongo-qa) contains many more
 Mongo driver tests that are language independent. To run thoses tests as part
-of the "rake test" task, run
+of the "rake test" task, download the code "next to" this directory. So, after
+installing the mongo-qa code you would have these two directories next to each
+other:
 
-  $ rake mongo_qa
+  $ ls
+  mongo-qa
+  mongo-ruby-driver
   $ rake test
 
-The mongo_qa task uses the "git clone" command to make a copy of that project
-in a directory named mongo-qa. If the directory already exists, then the
-mongo_qa task uses "git pull" to updated the code that's there. The Ruby
-driver tests will then use some of the data files from that project when it
-runs BSON tests. You can delete this directory at any time if you don't want
-to run those tests any more.
+The tests run just fine if the mongo-qa directory is not there.
 
 Additionally, the script bin/validate is used by the mongo-qa project's
 validator script.

Rakefile

@@ -11,17 +11,6 @@ Rake::TestTask.new do |t|
   t.test_files = FileList['tests/test*.rb']
 end
 
-desc "Clone or pull (update) the mongo-qa project used for testing"
-task :mongo_qa do
-  if File.exist?('mongo-qa')
-    Dir.chdir('mongo-qa') do
-      system('git pull')
-    end
-  else
-    system('git clone git://github.com/mongodb/mongo-qa.git')
-  end
-end
-
 desc "Generate documentation"
 task :rdoc do
   FileUtils.rm_rf('html')

tests/test_round_trip.rb

@@ -8,9 +8,9 @@ require 'test/unit'
 # OrderedHash and then test both Ruby-to-BSON and BSON-to-Ruby translations.
 #
 # There is a whole other project that includes similar tests
-# (http://github.com/mongodb/mongo-qa). If the directory ../mongo-qa exists,
-# then we find the BSON test files there and use those, too. Use the Rake task
-# "mongo_qa" to obtain those tests.
+# (http://github.com/mongodb/mongo-qa). If the directory ../../mongo-qa
+# exists, (that is, the top-level dir of mongo-qa is next to the top-level dir
+# of this project), then we find the BSON test files there and use those, too.
 class RoundTripTest < Test::Unit::TestCase
 
   include XGen::Mongo::Driver
@@ -47,7 +47,7 @@ EOS
   # Dynamically generate one test for each test file. This way, if one test
   # fails the others will still run.
   create_test_for_round_trip_files_in_dir(File.join(HERE, 'data'))
-  mongo_qa_dir = File.join(HERE, '..', 'mongo-qa/modules/bson_tests/tests')
+  mongo_qa_dir = File.join(HERE, '../..', 'mongo-qa/modules/bson_tests/tests')
   if File.exist?(mongo_qa_dir)
     %w(basic_types complex single_types).each { |subdir_name|
       create_test_for_round_trip_files_in_dir(File.join(mongo_qa_dir, subdir_name))