unit test

this is the easy part, believe it or not

code/modules/unit_tests/find_reference_sanity.dm

@@ -2,12 +2,14 @@
 /datum/unit_test/find_reference_sanity
 
 /atom/movable/ref_holder
+	var/static/atom/movable/ref_test/static_test
 	var/atom/movable/ref_test/test
 	var/list/test_list = list()
 	var/list/test_assoc_list = list()
 
 /atom/movable/ref_holder/Destroy()
 	test = null
+	static_test = null
 	test_list.Cut()
 	test_assoc_list.Cut()
 	return ..()
@@ -25,6 +27,12 @@
 	SSgarbage.should_save_refs = TRUE
 
 	//Sanity check
+	/*
+	#if DM_VERSION >= 515
+	var/refcount = refcount(victim)
+	TEST_ASSERT_EQUAL(refcount, 3, "Should be: test references: 0 + baseline references: 3 (victim var,loc,allocated list)")
+	#endif
+	*/
 	victim.DoSearchVar(testbed, "Sanity Check", search_time = 1) //We increment search time to get around an optimization
 	TEST_ASSERT(!victim.found_refs.len, "The ref-tracking tool found a ref where none existed")
 	SSgarbage.should_save_refs = FALSE
@@ -39,6 +47,12 @@
 	testbed.test_list += victim
 	testbed.test_assoc_list["baseline"] = victim
 
+	/*
+	#if DM_VERSION >= 515
+	var/refcount = refcount(victim)
+	TEST_ASSERT_EQUAL(refcount, 6, "Should be: test references: 3 + baseline references: 3 (victim var,loc,allocated list)")
+	#endif
+	*/
 	victim.DoSearchVar(testbed, "First Run", search_time = 2)
 
 	TEST_ASSERT(victim.found_refs["test"], "The ref-tracking tool failed to find a regular value")
@@ -56,6 +70,12 @@
 	testbed.vis_contents += victim
 	testbed.test_assoc_list[victim] = TRUE
 
+	/*
+	#if DM_VERSION >= 515
+	var/refcount = refcount(victim)
+	TEST_ASSERT_EQUAL(refcount, 6, "Should be: test references: 3 + baseline references: 3 (victim var,loc,allocated list)")
+	#endif
+	*/
 	victim.DoSearchVar(testbed, "Second Run", search_time = 3)
 
 	//This is another sanity check
@@ -76,6 +96,12 @@
 	var/list/to_find_assoc = list(victim)
 	testbed.test_assoc_list["Nesting"] = to_find_assoc
 
+	/*
+	#if DM_VERSION >= 515
+	var/refcount = refcount(victim)
+	TEST_ASSERT_EQUAL(refcount, 6, "Should be: test references: 3 + baseline references: 3 (victim var,loc,allocated list)")
+	#endif
+	*/
 	victim.DoSearchVar(victim, "Third Run Self", search_time = 4)
 	victim.DoSearchVar(testbed, "Third Run Testbed", search_time = 4)
 	TEST_ASSERT(victim.found_refs["self_ref"], "The ref-tracking tool failed to find a self reference")
@@ -90,7 +116,12 @@
 
 	//Calm before the storm
 	testbed.test_assoc_list = list(null = victim)
-
+	/*
+	#if DM_VERSION >= 515
+	var/refcount = refcount(victim)
+	TEST_ASSERT_EQUAL(refcount, 4, "Should be: test references: 1 + baseline references: 3 (victim var,loc,allocated list)")
+	#endif
+	*/
 	victim.DoSearchVar(testbed, "Fourth Run", search_time = 5)
 	TEST_ASSERT(testbed.test_assoc_list, "The ref-tracking tool failed to find a null key'd assoc list entry")
 
@@ -105,7 +136,39 @@
 	var/list/to_find_null_assoc_nested = list(victim)
 	testbed.test_assoc_list[null] = to_find_null_assoc_nested
 
+	/*
+	#if DM_VERSION >= 515
+	var/refcount = refcount(victim)
+	TEST_ASSERT_EQUAL(refcount, 5, "Should be: test references: 2 + baseline references: 3 (victim var,loc,allocated list)")
+	#endif
+	*/
 	victim.DoSearchVar(testbed, "Fifth Run", search_time = 6)
 	TEST_ASSERT(victim.found_refs[to_find_in_key], "The ref-tracking tool failed to find a nested assoc list key")
 	TEST_ASSERT(victim.found_refs[to_find_null_assoc_nested], "The ref-tracking tool failed to find a null key'd nested assoc list entry")
 	SSgarbage.should_save_refs = FALSE
+
+/datum/unit_test/find_reference_static_inPvestigation/Run()
+	var/atom/movable/ref_test/victim = allocate(/atom/movable/ref_test)
+	var/atom/movable/ref_holder/testbed = allocate(/atom/movable/ref_holder)
+	pass(testbed)
+	SSgarbage.should_save_refs = TRUE
+
+	//Lets check static vars now, since those can be a real headache
+	testbed.static_test = victim
+
+	//Yes we do actually need to do this. The searcher refuses to read weird lists
+	//And global.vars is a really weird list
+	var/global_vars = list()
+	for(var/key in global.vars)
+		global_vars[key] = global.vars[key]
+
+	/*
+	#if DM_VERSION >= 515
+	var/refcount = refcount(victim)
+	TEST_ASSERT_EQUAL(refcount, 5, "Should be: test references: 2 + baseline references: 3 (victim var,loc,allocated list)")
+	#endif
+	*/
+	victim.DoSearchVar(global_vars, "Sixth Run", search_time = 7)
+
+	TEST_ASSERT(victim.found_refs[global_vars], "The ref-tracking tool failed to find a natively global variable")
+	SSgarbage.should_save_refs = FALSE