Random Numbers

Thank you to all who replied to my previous question regarding the generation 
of random numbers. 

I have read up on the literature and learnt a whole lot more. In my research I 
found code for many generators which I have translated into java for my 
project. I'm now at the stage of testing these generators and was wondering if 
there were any inbuilt (or if someone has written libraries for) testing 
commands in R. 

Are there any libraries for R that have the serial correlation test, the 
birthday spacing test or any of the other tests for randomness??
Thank you all
David