rubygem-rspec-mocks from YaST:SLE-12:SP3 project
Select Your Operating System
Add repository and install manually
For SLE 12 SP3 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/YaST:SLE-12:SP3/SLE_12_SP3/YaST:SLE-12:SP3.repo zypper refresh zypper install rubygem-rspec-mocks