Tests rebuild database which takes a bit of time. I hacked Rakefile to not rebuild database every time.
Rake::Task['features'].clear_prerequisites rescue nil # For some super weird reason this fails for some...
Rake::Task['default'].clear_prerequisites rescue nil
Rake::Task['spec'].clear_prerequisites rescue nil
task :spec => %w[db:abort_if_pending_migrations]
task :features => %w[db:abort_if_pending_migrations]
desc "Run all tests and features"
task :default => %w(spec features)