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path: root/internal/world/mob_rekey_test.go
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package world

import "testing"

// TestRekeyRoomsRewritesSeededInstanceID: a seeded instance's map key embeds
// its home room ("<def>_<room>_<i>"). Renaming the room must rewrite the key,
// or SeedMobs creates a duplicate instance for the renamed room and a later
// recycled ID skips seeding entirely.
func TestRekeyRoomsRewritesSeededInstanceID(t *testing.T) {
	s := &MobStore{instances: map[string]*MobInstance{
		"rat_2_0": {InstanceID: "rat_2_0", DefID: "rat", RoomID: 2, HomeRoomID: 2},
		"bat_5_1": {InstanceID: "bat_5_1", DefID: "bat", RoomID: 5, HomeRoomID: 5},
	}}
	s.RekeyRooms(map[int]int{2: 4})

	if _, stale := s.instances["rat_2_0"]; stale {
		t.Fatal("stale seeded key survived the rekey")
	}
	inst, ok := s.instances["rat_4_0"]
	if !ok || inst.RoomID != 4 || inst.HomeRoomID != 4 {
		t.Fatalf("rekeyed instance = %+v (present=%v), want rat_4_0 in room 4", inst, ok)
	}
	if _, ok := s.instances["bat_5_1"]; !ok {
		t.Fatal("an unrelated instance was dropped")
	}
}

// TestRekeyRoomsUpdatesMobDespawnRooms: DespawnRooms is a live room reference
// (sys_triggers compares it against the owner's current room). A room rename
// must remap it alongside RoomID/HomeRoomID/WanderRooms, or a transient mob
// despawns while its owner never left the allowed room.
func TestRekeyRoomsUpdatesMobDespawnRooms(t *testing.T) {
	s := &MobStore{instances: map[string]*MobInstance{
		"m1": {
			InstanceID:   "m1",
			RoomID:       1,
			HomeRoomID:   1,
			WanderRooms:  []int{1, 5},
			DespawnRooms: []int{1, 5},
		},
	}}
	s.RekeyRooms(map[int]int{1: 3, 5: 7})
	inst := s.instances["m1"]
	if inst.RoomID != 3 || inst.HomeRoomID != 3 {
		t.Fatalf("room/home = %d/%d, want 3/3", inst.RoomID, inst.HomeRoomID)
	}
	if got := inst.WanderRooms; len(got) != 2 || got[0] != 3 || got[1] != 7 {
		t.Fatalf("wander_rooms = %v, want [3 7]", got)
	}
	if got := inst.DespawnRooms; len(got) != 2 || got[0] != 3 || got[1] != 7 {
		t.Fatalf("despawn_rooms = %v, want [3 7]", got)
	}
}