autotest: Test when invalid tag is selected via DO_JUMP_TAG

Tools/autotest/arducopter.py

@@ -3274,6 +3274,22 @@ def MissionIndexValidity(self):
                         timeout=1,
                         want_result=mavutil.mavlink.MAV_RESULT_DENIED)
 
+    def InvalidJumpTags(self):
+        '''Verify the behaviour when selecting invalid jump tags.'''
+
+        MAX_TAG_NUM = 65535
+        # Jump tag is not present, so expect FAILED
+        self.run_cmd(mavutil.mavlink.MAV_CMD_DO_JUMP_TAG,
+                    p1=MAX_TAG_NUM,
+                    timeout=1,
+                    want_result=mavutil.mavlink.MAV_RESULT_FAILED)
+
+        # Jump tag is too big, so expect DENIED
+        self.run_cmd(mavutil.mavlink.MAV_CMD_DO_JUMP_TAG,
+                    p1=MAX_TAG_NUM+1,
+                    timeout=1,
+                    want_result=mavutil.mavlink.MAV_RESULT_DENIED)
+
     def GPSViconSwitching(self):
         """Fly GPS and Vicon switching test"""
         self.customise_SITL_commandline(["--uartF=sim:vicon:"])
@@ -10452,6 +10468,7 @@ def tests2b(self):  # this block currently around 9.5mins here
             self.FlyMissionTwice,
             self.FlyMissionTwiceWithReset,
             self.MissionIndexValidity,
+            self.InvalidJumpTags,
             self.IMUConsistency,
             self.AHRSTrimLand,
             self.GuidedYawRate,