Skia relies heavily on our suite of unit and GM tests, which are served by our DM test tool, for correctness testing. Tests are executed by our trybots, for every commit, across most of our supported platforms and configurations. Skia Gold is a web interface for triaging these results.
We also have a robust set of performance tests, served by the nanobench tool and accessible via the Skia Perf web interface.
Cluster Telemetry is a powerful framework that helps us capture and benchmark SKP files, a binary format for draw commands, across up to one million websites.
See the individual subpages for more details on our various test tools.