Test script for Bug #8594: https://bugs.ruby-lang.org/issues/8594

tst.rb

def try
  yield
  print '.'
rescue Errno::EINVAL
  print 'i'
  sleep 1
rescue Errno::ENOENT
  print 'n'
  sleep 1
rescue Errno::EACCES
  print 'a'
  sleep 1
rescue Errno::EBADF
  print 'b'
  sleep 1
rescue Errno::ENETDOWN
  print 'd'
  sleep 1
rescue Errno::ERANGE
  print 'r'
  sleep 1
end

50.times do
  filebase = 'shakeshake-' + Time.new.to_i.to_s
  print "\ncreate " ; 50.times { |i| try { File.write('%s_%d' % [filebase, i], 'a' * 100_000) } }
  print "\nrename " ; 50.times { |i| try { File.rename('%s_%d' % [filebase, i], 'deleteme_%d' % [i]) } }
  print "\ndelete " ; 50.times { |i| try { File.unlink('deleteme_%d' % [i]) } }
  puts
end