1. A method of automating testing of a first computing system comprising: identifying a plurality of system interface elements of a second computing system; determining an untested state at said first computing system of one of said identified plurality of system interface elements; determining the existence of any dependency of said one of said identified plurality of system interface elements upon another of said identified plurality of system interface elements; responsive to a finding of no said dependency, seeking in a repository a system interface element test corresponding to said one of said identified plurality of system interface elements and having an expected output according to a structure of said second computing system; executing said system interface element test at said first computing system; responsive to a failure of said seeking to find a said system interface element test, creating a new test corresponding to said one of said identified plurality of system interface elements; executing said new test at said second computing system; and storing in said repository said new test and an expected output corresponding to an output of said executing said new test at said second computing system.