1. A method of generating a test script from a pre-existing script for testing a graphical user interface (GUI) comprising: parsing a pre-existing test script for a graphical user interface (GUI) to identify, using keywords and associated parameters, a first GUI action in a first line of the pre-existing test script; parsing a model associated with the GUI to identify GUI actions and associated elements for the GUI actions in the model; identifying a corresponding element for the first GUI action in a second line, following the first line, that are identified by keywords and associated parameters that exist in the pre-existing test script and match actions in the model; identifying GUI actions in the pre-existing test script that match GUI actions in the model; and generating a new test script by adding the first GUI action and corresponding element to the pre-existing test script.