Fix resisting not starting stop, drop, and roll (#53079)

code/modules/mob/living/carbon/carbon.dm

@@ -290,7 +290,7 @@
 	visible_message("<span class='danger'>[src] rolls on the floor, trying to put [p_them()]self out!</span>", \
 		"<span class='notice'>You stop, drop, and roll!</span>")
 	sleep(30)
-	if(fire_stacks <= 0)
+	if(fire_stacks <= 0 && !QDELETED(src))
 		visible_message("<span class='danger'>[src] successfully extinguishes [p_them()]self!</span>", \
 			"<span class='notice'>You extinguish yourself.</span>")
 		ExtinguishMob()

code/modules/mob/living/living.dm

@@ -792,7 +792,7 @@
 		resist_buckle()
 
 	//Breaking out of a container (Locker, sleeper, cryo...)
-	else if(loc)
+	else if(loc != get_turf(src))
 		loc.container_resist_act(src)
 
 	else if(mobility_flags & MOBILITY_MOVE)

code/modules/unit_tests/_unit_tests.dm

@@ -24,6 +24,7 @@
 #include "plantgrowth_tests.dm"
 #include "reagent_id_typos.dm"
 #include "reagent_recipe_collisions.dm"
+#include "resist.dm"
 #include "say.dm"
 #include "siunit.dm"
 #include "spawn_humans.dm"

code/modules/unit_tests/resist.dm

@@ -0,0 +1,29 @@
+/// Test that stop, drop, and roll lowers fire stacks
+/datum/unit_test/stop_drop_and_roll/Run()
+	var/mob/living/carbon/human/human = allocate(/mob/living/carbon/human)
+
+	TEST_ASSERT_EQUAL(human.fire_stacks, 0, "Human does not have 0 fire stacks pre-ignition")
+
+	human.adjust_fire_stacks(5)
+	human.IgniteMob()
+
+	TEST_ASSERT_EQUAL(human.fire_stacks, 5, "Human does not have 5 fire stacks pre-resist")
+
+	// Stop, drop, and roll has a sleep call. This would delay the test, and is not necessary.
+	CallAsync(human, /mob/living/verb/resist)
+
+	TEST_ASSERT(human.fire_stacks < 5, "Human did not lower fire stacks after resisting")
+
+/// Test that you can resist out of a container
+/datum/unit_test/container_resist/Run()
+	var/mob/living/carbon/human/human = allocate(/mob/living/carbon/human)
+	var/obj/structure/closet/closet = allocate(/obj/structure/closet, get_turf(human))
+
+	closet.open(human)
+	TEST_ASSERT(!(human in closet.contents), "Human was in the contents of an open closet")
+
+	closet.close(human)
+	TEST_ASSERT(human in closet.contents, "Human was not in the contents of the closed closet")
+
+	human.resist()
+	TEST_ASSERT(!(human in closet.contents), "Human resisted out of a standard closet, but was still in it")