perl-Test-Number-Delta from home:tsaupe:branches:devel:languages:perl project
Select Your Operating System
Add repository and install manually
For SLE 15 SP3 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:tsaupe:branches:devel:languages:perl/SLE_15_SP3/home:tsaupe:branches:devel:languages:perl.repo zypper refresh zypper install perl-Test-Number-Delta