On 5 oct, 16:18, Nala <[email protected]> wrote:
> I have started writing a few tests, and I have successfully confirmed
> that the events I expect to see fired are fired. I`m using variations
> on
>
> public void testEventFired() {
> delayTestFinish(2000);
> Foo myFoo = new Foo();
> myFoo.addChangeHander(new ChangeHandler() {
> public void onChange(ChangeEvent event) {
> // assert that all the parts of the event are set correctly
> finishTest();
> }
> });
> myFoo.doThingThatTriggersChangeEvent();
> }
>
> Now I'd like to test that myFoo.doThingThatDoesNotTriggerChangeEvent()
> doesn't fire a ChangeEvent. I have to wait to give the event a chance
> to fire, but when the delay runs out, I want the test to be successful
> instead of fail.
>
> Is there any way to do that?
Yes, using a timer and a non-anonymous handler class; something like:
private class CountingChangeHandler implements ChangeHandler {
public int callCount;
public void onChange(ChangeEvent event) {
callCount++;
}
}
...
Foo myFoo = new Foo();
final CountingChangeHandler handler = new CountingChangeHandler();
delayTestFinish(3000);
(new Timer() {
public void run() {
// if handler.callCount isn't 0, it means it has been called!
assertEquals(0, handler.callCount);
finishTest();
}
}).shedule(2500);
myFoo.doSomethingThatTriggersChangeEvent();
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