Del The World: Unit testing for hard deletes (#59612)

Co-authored-by: SteelSlayer <42044220+SteelSlayer@users.noreply.github.com>

code/modules/power/apc.dm

@@ -256,17 +256,18 @@
 
 	if(malfai && operating)
 		malfai.malf_picker.processing_time = clamp(malfai.malf_picker.processing_time - 10,0,1000)
-	area.power_light = FALSE
-	area.power_equip = FALSE
-	area.power_environ = FALSE
-	area.power_change()
+	if(area)
+		area.power_light = FALSE
+		area.power_equip = FALSE
+		area.power_environ = FALSE
+		area.power_change()
 	QDEL_NULL(alarm_manager)
 	if(occupier)
 		malfvacate(1)
-	qdel(wires)
-	wires = null
+	if(wires)
+		QDEL_NULL(wires)
 	if(cell)
-		qdel(cell)
+		QDEL_NULL(cell)
 	if(terminal)
 		disconnect_terminal()
 	. = ..()

code/modules/power/singularity/containment_field.dm

@@ -29,8 +29,12 @@
 	AddElement(/datum/element/connect_loc, loc_connections)
 
 /obj/machinery/field/containment/Destroy()
-	field_gen_1.fields -= src
-	field_gen_2.fields -= src
+	if(field_gen_1)
+		field_gen_1.fields -= src
+		field_gen_1 = null
+	if(field_gen_2)
+		field_gen_2.fields -= src
+		field_gen_2 = null
 	CanAtmosPass = ATMOS_PASS_YES
 	air_update_turf(TRUE, FALSE)
 	return ..()