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http://jira.jboss.com/jira/browse/JBSEAM-1822?page=comments#action_12378508 ]
Sam Roberton commented on JBSEAM-1822:
--------------------------------------
Shane, sorry I haven't given you a test case yet --- unfortunately, other work
commitments are getting in the way of me paying real attention to this.
Nonetheless, even without a test case, isn't it clear from visual inspection of the
code that the BaseSeamTest$Request.emulateJsfLifecycle() method is incorrectly
implemented? It definitely doesn't handle exceptions raised by, say, the
invokeApplication() method, even though in order to test Seam's actual behaviour in
these circumstances, it needs to (at least) ensure that the phase listener's
'after phase' event is called.
In any case, I'll try a bit harder to free up some time to get you a decent test case
(or set of test cases), and once I do that, I'll re-open this issue.
BaseSeamTest does not properly emulateJsfLifecycle does not handle
phase listeners per the jsf 1.2 spec.
--------------------------------------------------------------------------------------------------------
Key: JBSEAM-1822
URL:
http://jira.jboss.com/jira/browse/JBSEAM-1822
Project: JBoss Seam
Issue Type: Bug
Components: Test Harness
Affects Versions: 2.0.0.BETA1
Reporter: Chris Rudd
Assigned To: Shane Bryzak
Fix For: 2.0.0.GA
Under the 1.2 JSF spec, all phase listeners are called with the after phase events
reguarless of if an exception was thrown during the phase processing.
The resulting issue is that when Init.isTransactionMangementEnabled is true, and and an
exception (or an AssertionError) is thrown from within the phase method, the SeamPhase
listner does not get a chance to handle the condition and rollback the transaction. This
leaves the transaction open, and all further tests run for that class are now
"tainted" as there is a transaction running that will never be completed.
Wrapping code in the phase methods
(restoreViewPhase,applyRequestValuesPhase,processValidationsPhase,updateModelValuesPhase,invokeApplicationsPhase,
renderResponsePhase) like this will resolve the issue :
private void renderResponsePhase() throws Exception
{
phases.beforePhase(new PhaseEvent(facesContext, PhaseId.RENDER_RESPONSE,
MockLifecycle.INSTANCE));
+ try
+ {
updateConversationId();
renderResponseBegun = true;
renderResponse();
renderResponseComplete = true;
facesContext.getApplication().getStateManager().saveView(facesContext);
updateConversationId();
+ }
+ finally
+ {
phases.afterPhase(new PhaseEvent(facesContext, PhaseId.RENDER_RESPONSE,
MockLifecycle.INSTANCE));
+ }
}
it may be cleaner to refactor the phase methods into PhaseExection classes. (remove
firing of phase events from the phase methods )
public class PhaseExecution {
private PhaseId phaseId;
public PhaseExecution(PhaseId phaseId)
{
this.phaseId = phaseId;
}
protected abstract void execute() throws Exception
public void run() throws Exception {
fireBefore();
try
{
execute();
}
finally
{
afterPhase();
}
}
protected void fireBefore()
{
phases.beforePhase(new PhaseEvent(facesContext, phaseId,
MockLifecycle.INSTANCE));
}
protected void fireAfter()
{
phases.afterPhase(new PhaseEvent(facesContext, phaseId,
MockLifecycle.INSTANCE));
}
}
final private PhaseExcecution RESTORE_VIEW_PHASE= new
PhaseExecution(PhaseId.RESTORE_VIEW) {
protected void execute() throws Exception {
restoreViewPhase();
}
};
final private PhaseExcecution RENDER_RESPONSE_PHASE= new
PhaseExecution(PhaseId.RENDER_RESPONSE) {
protected void execute() throws Exception {
renderResponsePhase();
}
};
...
/**
* @return true if a response was rendered
*/
private boolean emulateJsfLifecycle() throws Exception
{
RESTORE_VIEW_PHASE.run();
if ( !isGetRequest() && !skipToRender() )
{
APPLY_REQUEST_VALUES_PHASE.run();
if (!skipToRender())
{
PROCESS_VALIDATIONS_PHASE.run();
if ( !skipToRender() )
{
UPDATE_MODEL_VALUES_PHASE.run();
if ( !skipToRender() )
{
INVOKE_APPLICATION_PHASE.run();
}
}
}
}
if ( skipRender() )
{
// we really should look at redirect parameters here!
return false;
}
else
{
RENDER_RESPONSE_PHASE.run();
return true;
}
}
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