     outOfBoundsIndexOffset: Int = 1
   ) {
 
+    // Don't run the same tests twice.
     if checksAdded.value.contains(__FUNCTION__) {
       return
     }

    outOfBoundsIndexOffset: Int = 1
  ) {

    if checksAdded.value.contains(__FUNCTION__) {
      return
    }

    outOfBoundsIndexOffset: Int = 1
  ) {

    // Don't run the same tests twice.
    if checksAdded.value.contains(__FUNCTION__) {
      return
    }
