Report method without io.sync = self.old_sync

report2.rb

def report # :nodoc:
  super

  io.puts "before sync"
  # io.sync = self.old_sync
  io.puts "after sync"

  io.puts unless options[:verbose] # finish the dots
  io.puts
  io.puts statistics
  io.puts aggregated_results
  io.puts summary
end

result2

rack-simple_auth (master*) $ bundle exec rake
/home/benny/.rubies/rbx/bin/rbx -I"lib:test:bin:ext:controllers:helpers:models" -I"/home/benny/.rubies/rbx/gems/gems/rake-10.3.1/lib" "/home/benny/.rubies/rbx/gems/gems/rake-10.3.1/lib/rake/rake_test_loader.rb" "test/rack/simple_auth/hmac/hmac_fail_run_test.rb" "test/rack/simple_auth/hmac/hmac_fail_test.rb" "test/rack/simple_auth/hmac/hmac_test.rb" 
Run options: --seed 29440

# Running:

..................before sync
after sync


Fabulous run in 2.290506s, 7.8585 runs/s, 7.8585 assertions/s.

18 runs, 18 assertions, 0 failures, 0 errors, 0 skips
rack-simple_auth (master*) $