1. A method for graphical user interface application testing, comprising: generating in computer readable memory a programming class for a graphical user interface (GUI) object in a graphical user interface application (GAP); providing a value manipulation method in the programming class for the GUI object; reading in the memory a test script statement from a test script that references the GUI object with a programming object defined in the test script, the programming object comprising a programming object value; establishing in the memory a reflective connector between the test script statement and the GUI object in the GAP; and in connection with executing the test script statement, calling the value manipulation method through the connector to manipulate the programming object value.