fix(tests): possible out of range in integration

ExpectAllInOrderSequentially might try to access an index out of range
depending on the number of events that are being checked.

More about in issue aquasecurity#4255.

tests/integration/event_filters_test.go

@@ -2460,7 +2460,8 @@ func ExpectAllEvtsEqualToOne(t *testing.T, cmdEvents []cmdEvents, actual *eventB
 }
 
 // ExpectAllInOrderSequentially validates that the actual events match the
-// expected events for each command, with events appearing in the same order.
+// expected events for each command, with events appearing in the same order of the
+// expected events.
 func ExpectAllInOrderSequentially(t *testing.T, cmdEvents []cmdEvents, actual *eventBuffer, useSyscaller bool) error {
  // first stage: run commands
  actual.clear()
@@ -2474,17 +2475,22 @@ func ExpectAllInOrderSequentially(t *testing.T, cmdEvents []cmdEvents, actual *e
 
  actEvtsCopy := actual.getCopy()
 
+ actEvtIdx := 0
  // second stage: check events
- for cmdIdx, cmd := range cmdEvents {
+ for _, cmd := range cmdEvents {
  syscallsInSets := []string{}
  checkSets := len(cmd.sets) > 0
  if checkSets {
  syscallsInSets = getAllSyscallsInSets(cmd.sets)
  }
 
  // compare the expected events with the actual events in the same order
- for evtIdx, expEvt := range cmd.expectedEvents {
- actEvt := actEvtsCopy[cmdIdx*len(cmd.expectedEvents)+evtIdx]
+ for _, expEvt := range cmd.expectedEvents {
+ if actEvtIdx >= len(actEvtsCopy) {
+ return fmt.Errorf("Event %+v:\nnot found or in wrong order in actual output:\n%+v", expEvt, actEvtsCopy)
+ }
+ actEvt := actEvtsCopy[actEvtIdx]
+ actEvtIdx++
 
  if checkSets && !isInSets(actEvt.EventName, syscallsInSets) {
  return fmt.Errorf("Event %s not found in sets %v", actEvt.EventName, cmd.sets)