Reduce the amount of tests in NumberGenerator.t as it has become slower.
Reduce the amount of tests in NumberGenerator.t as it has become slower.

xhoy/otrs,xhoy/otrs,xhoy/otrs,mburggraf/otrs,mburggraf/otrs,mburggraf/otrs,mburggraf/otrs,mburggraf/otrs,xhoy/otrs,xhoy/otrs