Regular testing is crucial to producing robust software. However, software that runs on HPC (High Performance Computing) systems can be difficult to test at scale. Continuous integration tools such as Jenkins lack compatibility with HPC systems, making it harder to run regular and consistent testing on HPC.The SLURM Plugin was developed to enable research software testing on HPC through Anvil, a Jenkins-based continuous integration service developed by the Science and Technology Facilities Council (STFC). Anvil users can now run tests on SCARF, an HPC cluster based at STFC.