diff --git a/src/game/engine/tests/integration/test_happiness_turn.gd b/src/game/engine/tests/integration/test_happiness_turn.gd
index 752328ab..142440ba 100644
--- a/src/game/engine/tests/integration/test_happiness_turn.gd
+++ b/src/game/engine/tests/integration/test_happiness_turn.gd
@@ -334,11 +334,13 @@ func test_luxury_count_adds_happiness_via_rust() -> void:
 	var base_input: Dictionary = {
 		"city_count": 1, "total_citizens": 3,
 		"units_in_enemy_territory": 0,
-		"building_happiness": 0, "unique_luxury_count": 0,
+		"building_happiness": 0, "owned_luxuries": {},
 		"growth_tier": "balanced",
 	}
 	var zero: Dictionary = gd.call("calculate", JSON.stringify(base_input))
-	base_input["unique_luxury_count"] = 2
+	# Rust HappinessInput reads an owned_luxuries map (value 0 ⇒ config default
+	# LUXURY_HAPPINESS=4), not a unique_luxury_count int. Two entries ⇒ +8.
+	base_input["owned_luxuries"] = {"silk": 0, "wine": 0}
 	var two: Dictionary = gd.call("calculate", JSON.stringify(base_input))
 	assert_eq(int(zero.get("luxury_happiness", 0)), 0,
 		"zero luxuries must yield 0 luxury_happiness")