AT_BANNER([UUID unit tests])

m4_define([UUID_REGEX], 
  [[[0-9a-f]\{8\}-[0-9a-f]\{4\}-4[0-9a-f]\{3\}-[89ab][0-9a-f]\{3\}-[0-9a-f]\{12\}$]])

m4_define([CHECK_UUID],
  [if expr "$uuid" : 'UUID_REGEX' > /dev/null
   then
      :
   else
     echo "$uuid: not a random UUID"
     exit 1
   fi])

AT_SETUP([UUID generation, parsing, serialization])
AT_KEYWORDS([UUID])
AT_CHECK([
  uuids=
  for i in m4_for([count], [1], [100], [1], [count ]); do
     # Generate random UUID and check that it is in the expected format.
     uuid=`ovstest test-uuid`
     CHECK_UUID

     # Verify that $uuid does not duplicate any UUID generated so far.
     case $uuids in
       *$uuid*) 
         echo "$uuid: generated duplicate UUID"
         exit 1
     esac
     uuids="$uuids $uuid"

     # Verify that test-uuid parses and re-serializes this UUID correctly.
     serialized=`ovstest test-uuid $uuid`
     if test "$uuid" != "$serialized"; then
       echo "$uuid: test-uuid serialized this as $serialized"
       exit 1
     fi
   done], [0])
AT_CLEANUP