detect: unittest guards for ut only function

src/detect-engine-alert.c

@@ -126,6 +126,7 @@ static int PacketAlertHandle(DetectEngineCtx *de_ctx, DetectEngineThreadCtx *det
     SCReturnInt(1);
 }
 
+#ifdef UNITTESTS
 /**
  * \brief Check if a certain sid alerted, this is used in the test functions
  *
@@ -136,19 +137,17 @@ static int PacketAlertHandle(DetectEngineCtx *de_ctx, DetectEngineThreadCtx *det
  */
 int PacketAlertCheck(Packet *p, uint32_t sid)
 {
-    uint16_t i = 0;
     int match = 0;
 
-    for (i = 0; i < p->alerts.cnt; i++) {
-        if (p->alerts.alerts[i].s == NULL)
-            continue;
-
+    for (uint16_t i = 0; i < p->alerts.cnt; i++) {
+        BUG_ON(p->alerts.alerts[i].s == NULL);
         if (p->alerts.alerts[i].s->id == sid)
             match++;
     }
 
     return match;
 }
+#endif
 
 static inline void RuleActionToFlow(const uint8_t action, Flow *f)
 {

src/detect-engine-alert.h

@@ -33,7 +33,9 @@ void AlertQueueFree(DetectEngineThreadCtx *det_ctx);
 void AlertQueueAppend(DetectEngineThreadCtx *det_ctx, const Signature *s, Packet *p, uint64_t tx_id,
         uint8_t alert_flags);
 void PacketAlertFinalize(DetectEngineCtx *, DetectEngineThreadCtx *, Packet *);
+#ifdef UNITTESTS
 int PacketAlertCheck(Packet *, uint32_t);
+#endif
 void PacketAlertTagInit(void);
 void DetectEngineAlertRegisterTests(void);