# File lib/dm-core/spec/setup.rb, line 45
      def require_spec_adapter
        if ENV['ADAPTER'] == 'in_memory'
          ENV['ADAPTER_SUPPORTS'] = 'all'
          Adapters.use(Adapters::InMemoryAdapter)
        else
          require "dm-#{ENV['ADAPTER']}-adapter/spec/setup"
        end
      end