Add Python test helper validate_eventids()

Called when loading captures in Iter_Test and Repeat_Load

Checks the consistency of EventIds:

Walk the actions to find all the referenced EventId's:
- Error if any EventId is duplicated
- Error if the EventId's are not contiguous (with no gaps)

util/test/rdtest/testcase.py

@@ -1164,3 +1164,25 @@ class TestCase:
                         raise TestFailureException(f"Step {i} ShaderVariableChange for '{c.after.name}' before is not well formed")
 
         return True
+
+    def validate_eventids(self, controller: rd.ReplayController) -> bool:
+        actions = controller.GetRootActions()
+        eventIds = set()
+        maxEventId = 0
+        while len(actions) > 0:
+            action = actions.pop()
+            for event in action.events:
+                eid = event.eventId
+                if eid in eventIds:
+                    log.error(f"ERROR: Duplicated EventId: {eid} Action: {action.actionId} {action.customName}")
+                    return False
+                if eid > maxEventId:
+                    maxEventId = eid
+                eventIds.add(eid)
+            for child in action.children:
+                actions.append(child)
+        for eid in range(1, maxEventId+1):
+            if not eid in eventIds:
+                log.error(f"ERROR: Missing EventId: {eid}")
+                return False
+        return True

util/test/tests/Iter_Test.py

@@ -501,6 +501,8 @@ class Iter_Test(rdtest.TestCase):
                 continue
 
             section_name = 'Iterating {}'.format(file.name)
+            if not self.validate_eventids(self.controller):
+                raise rdtest.TestFailureException("ERROR: capture doesn't have valid event IDs.")
 
             rdtest.log.begin_section(section_name)
             self.iter_test()

util/test/tests/Repeat_Load.py

@@ -19,6 +19,8 @@ class Repeat_Load(rdtest.TestCase):
                 return
 
             rdtest.log.print("Loaded capture.")
+            if not self.validate_eventids(controller):
+                raise rdtest.TestFailureException("ERROR: capture doesn't have valid event IDs.")
 
             # Do nothing, just ensure it's loaded
             memory_usage: int = rd.GetCurrentProcessMemoryUsage()