To cover the preparatory test issues of upcoming ESA space laser missions, in joined effort amongst various laboratories, an adaptation of existing laser damage test benches has been performed. Conventional S-on-1 tests were extended with raster scanning procedures. Various aspects of characteristic damage curve issues are discussed. Sensitive surface analysis like time-of-flight SIMS is used to identify potential low density low damage threshold precursors. The inter-correlation of flight module testing and preceding single component testing is demonstrated. Finally, the successful execution of a flight module endurance test with more than 200 Mio. shots is detailed.