Is there a way for fuzzing Swing applications?

Question

Back in the old days, PalmOS had an emulator that could generate random events ("tap here, enter garbage in that text field, ...") for testing how applications would handle them (called "Gremlins"). This is a bit like fuzzing, but for a GUI. Is there an easy (existing) way to do that in a Java Swing application?

Edit:

Please note that I don't want to be able to specify, which events are fired. I'd like some code to automatically generate and fire random (as in "Math.random()") events. The probability that the events do something useful or find a bug is pretty small. But that is offset by firing many events.

Answer 1

Try FEST. It simplifies the process of functional-testing Swing GUIs by allowing to access Swing components by name and then interacting with them.

An example from FEST site:

dialog.comboBox("domain").select("Users");
dialog.textBox("username").enterText("alex.ruiz");
dialog.button("ok").click();
dialog.optionPane().requireErrorMessage()
                   .requireMessage("Please enter your password");

Edit:

Alternatively, what you are trying to achieve, should be really straightforward using Math.random(), a loop, findBomponentAt(int, int) and Robot class. Especially Robot class mitght be of use, as it has methods for spoofing mouse and keyboard events