Unit test to make sure all subsystems which initialize call parent

code/controllers/subsystem/dbcore.dm

@@ -37,6 +37,8 @@ SUBSYSTEM_DEF(dbcore)
 			message_admins("Database schema ([db_major].[db_minor]) doesn't match the latest schema version ([DB_MAJOR_VERSION].[DB_MINOR_VERSION]), this may lead to undefined behaviour or errors")
 		if(2)
 			message_admins("Could not get schema version from database")
+	
+	return ..()
 
 	
 /datum/controller/subsystem/dbcore/Recover()

code/controllers/subsystem/pathfinder.dm

@@ -14,6 +14,8 @@ SUBSYSTEM_DEF(pathfinder)
 	free = 1
 	flow = new()
 	flow.len=lcount
+	
+	return ..()
 
 /datum/controller/subsystem/pathfinder/proc/getfree(atom/M)
 	if(run < lcount)

code/controllers/subsystem/stickyban.dm

@@ -30,3 +30,5 @@ SUBSYSTEM_DEF(stickyban)
 	
 	for (var/bannedckey in cache)
 		world.SetConfig("ban", bannedckey, list2stickyban(cache[bannedckey]))
+
+	return ..()

code/controllers/subsystem/traumas.dm

@@ -141,4 +141,6 @@ SUBSYSTEM_DEF(traumas)
 						  /datum/species/shadow))
 						 )
 
+	return ..()
+
 #undef PHOBIA_FILE

code/modules/unit_tests/_unit_tests.dm

@@ -4,5 +4,9 @@
 #include "unit_test.dm"
 #include "reagent_recipe_collisions.dm"
 #include "reagent_id_typos.dm"
+<<<<<<< HEAD
 //#include "vore_tests.dm"
+=======
+#include "subsystem_init.dm"
+>>>>>>> 70beb65... Unit test to make sure all subsystems which initialize call parent (#36466)
 #endif

code/modules/unit_tests/subsystem_init.dm

@@ -0,0 +1,7 @@
+/datum/unit_test/subsystem_init/Run()
+	for(var/i in Master.subsystems)
+		var/datum/controller/subsystem/ss = i
+		if(ss.flags & SS_NO_INIT)
+			continue
+		if(!ss.initialized)
+			Fail("[ss]([ss.type]) is a subsystem meant to initialize but doesn't get set as initialized.")