Eclipse Community Forums: SWTBot » Force flushing of pending UI events

Help

Home

Home » Eclipse Projects » SWTBot » Force flushing of pending UI events

Show: Today's Messages :: Show Polls :: Message Navigator

Force flushing of pending UI events [message #1408476]

Fri, 15 August 2014 06:27

Erdal Karaca

Messages: 854
Registered: July 2009

Senior Member

Hi,
I have the following SWTBot test scenario (Test suite started as SWTBot test):

= Test method A started
- trigger changes to an object (non UI)
which itself asynchronously triggers UI events which are not immediately dispatched
- verify the object
- quit test

= Test method B started
- do something
-> UI events from method A are dispatched now, method B fails as UI events are dispatched with stale data (NPE, widget disposed)

How do I prevent such cases? How do I wait or flush the pending UI events before quitting test method A? I tried to Display.readAndDispatch() in a loop but that is no guarantee to always work as I do not know how long to readAndDispatch()...
I know the asynchronously triggered UI events have to be safe against stale data, but that would clutter the code with lots of isDisposed() calls.

Report message to a moderator

Re: Force flushing of pending UI events [message #1409580 is a reply to message #1408476]

Mon, 18 August 2014 12:56

Mickael Istria

Messages: 865
Registered: July 2009
Location: Grenoble, France

Senior Member

Are you running your tests in the UI Thread? If yes, you should not.

I wouldn't advise writing any code depending on SWT events inside
SWTBot. SWTBot is better for higher level check (such as availability of
a widget) and it's better to use high-level check than relying on event
processing assumption.
Maybe you could write your testA in a way that it also checks that the
event it generated had the right effect.

--
Mickael Istria
My job: http://www.jboss.org/tools
My blog: http://mickaelistria.wordpress.com
My Tweets: http://twitter.com/mickaelistria

Report message to a moderator

Previous Topic:	editor's cursor disappear
Next Topic:	JRuby Support

Goto Forum:

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

]

Current Time: Fri Apr 19 20:48:50 GMT 2024

.:: Contact :: Home ::.

Breadcrumbs

Sign up to our Newsletter