If the test tries to access a property from the returned widget, there will be an exception thrown. For example, ctabs.get(0).getText() will result in an Invalid thread access SWT error.
To perform testing on widgets, the code has to run in the UI thread. Either the Display.getDefault().syncExec() or the equivalent Synchronizer class can be used, but SWTBot has a UIThreadRunnable that can launch code and a general interface called StringResult, which is like a Runnable that can return a String value through syncExec.
At the end of the
testTimeZonemethod of theUITestclass, create a newStringResultand pass it toUIThreadRunnable.syncExec().In the
runmethod, get the firstCTabItemand return its text value.After the
Runnablemethod has run, assert that the value isAfrica.The code looks like:
String tabText = UIThreadRunnable.syncExec(new StringResult() { @Override public String run() { return ctabs.get(0).getText(); } }); assertEquals...