ProcessingNodeTestCase.tic: increase delay to 30 minutes

Now that we fail immediately in case of failure, the deadline can be
safely increased, because it only protects against kind of infinite loops.

Increasing the delay should fix RuntimeError: tic is looping forever
errors with only messages in status -1, that we sometimes saw on testnodes.

product/ERP5Type/tests/ProcessingNodeTestCase.py

@@ -269,7 +269,7 @@ class ProcessingNodeTestCase(ZopeTestCase.TestCase):
     transaction.commit()
     self.abort()
 
-  def tic(self, verbose=0, stop_condition=lambda message_list: False, delay=10*60):
+  def tic(self, verbose=0, stop_condition=lambda message_list: False, delay=30*60):
     """Execute pending activities.
 
     This method executes activities until all messages are executed successfully,
@@ -281,7 +281,7 @@ class ProcessingNodeTestCase(ZopeTestCase.TestCase):
     to continue.
 
     If the total time spent processing activities exceeded `delay` seconds (default
-    10 minutes), then the processing is interrupted and `tic` raise a RuntimeError
+    30 minutes), then the processing is interrupted and `tic` raise a RuntimeError
     exception.
     """
     transaction.commit()