question: private static void runRandomTest ( final int wordLength , final int bytePadding , final int wordCount ) { final long seed = randomLong ( ) ; final Random random = new Random ( seed ) ; final Random verificationRandom = new Random ( seed ) ; final long wordMask ; if ( wordLength == 64 ) { wordMask = ~ 0L ; } else { wordMask = ( 1L << wordLength ) - 1L ; } final BigEndianAscendingWordSerializer serializer = new BigEndianAscendingWordSerializer ( wordLength , wordCount , bytePadding ) ; for ( int i = 0 ; i < wordCount ; i ++ ) { final long value = random . nextLong ( ) & wordMask ; serializer . writeWord ( value ) ; } final byte [ ] bytes = serializer . getBytes ( ) ; final BigEndianAscendingWordDeserializer deserializer = new BigEndianAscendingWordDeserializer ( wordLength , bytePadding , bytes ) ; assertEquals ( deserializer . totalWordCount ( ) , wordCount ) ; for ( int i = 0 ; i < wordCount ; i ++ ) { assertEquals ( deserializer . readWord ( ) , ( verificationRandom . nextLong ( ) & wordMask ) ) ; } }
target:  Runs a test which serializes and deserializes random word values.