public void testSourceProvider() throws Exception {
IWorkbenchWindow window = openTestWindow();
IEvaluationService service = (IEvaluationService) window.getService(IEvaluationService.class);
assertNotNull(service);
MyEval listener = new MyEval();
UserExpression expression = new UserExpression("Paul");
IEvaluationReference ref =
service.addEvaluationListener(expression, listener, IEvaluationService.RESULT);
assertEquals(ISources.ACTIVE_CONTEXT << 1, ref.getSourcePriority());
assertFalse(listener.currentValue);
assertEquals(1, listener.count);
ISourceProviderService sps =
(ISourceProviderService) window.getService(ISourceProviderService.class);
ActiveUserSourceProvider userProvider =
(ActiveUserSourceProvider) sps.getSourceProvider("username");
userProvider.setUsername("John");
assertFalse(listener.currentValue);
assertEquals(1, listener.count);
userProvider.setUsername("Paul");
assertTrue(listener.currentValue);
assertEquals(2, listener.count);
userProvider.setUsername("guest");
assertFalse(listener.currentValue);
assertEquals(3, listener.count);
}
public void testTwoEvaluations() throws Exception {
IWorkbenchWindow window = openTestWindow();
IEvaluationService service = (IEvaluationService) window.getService(IEvaluationService.class);
assertNotNull(service);
MyEval listener1 = new MyEval();
MyEval listener2 = new MyEval();
IContextActivation context1 = null;
IEvaluationReference evalRef1 = null;
IEvaluationReference evalRef2 = null;
IContextService contextService = null;
try {
evalRef1 =
service.addEvaluationListener(
new ActiveContextExpression(CONTEXT_ID1, new String[] {ISources.ACTIVE_CONTEXT_NAME}),
listener1,
IEvaluationService.RESULT);
assertEquals(1, listener1.count);
assertFalse(listener1.currentValue);
evalRef2 =
service.addEvaluationListener(
new ActiveContextExpression(CONTEXT_ID1, new String[] {ISources.ACTIVE_CONTEXT_NAME}),
listener2,
IEvaluationService.RESULT);
assertEquals(1, listener2.count);
assertFalse(listener2.currentValue);
evalRef2.setResult(true);
contextService = (IContextService) window.getService(IContextService.class);
context1 = contextService.activateContext(CONTEXT_ID1);
assertEquals(2, listener1.count);
assertTrue(listener1.currentValue);
// we already set this guy to true, he should skip
assertEquals(1, listener2.count);
assertFalse(listener2.currentValue);
evalRef1.setResult(false);
contextService.deactivateContext(context1);
context1 = null;
assertEquals(2, listener2.count);
assertFalse(listener2.currentValue);
// we already set this guy to false, so he should be the old
// values
assertEquals(2, listener1.count);
assertTrue(listener1.currentValue);
} finally {
if (context1 != null) {
contextService.deactivateContext(context1);
}
if (evalRef1 != null) {
service.removeEvaluationListener(evalRef1);
}
if (evalRef2 != null) {
service.removeEvaluationListener(evalRef2);
}
}
}