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test(game-engine): ✅ Add unit tests for city bridge functionality

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Co-Authored-By: Lilith Autocommit <noreply@atlilith.com>
This commit is contained in:
autocommit 2026-04-16 11:29:47 -07:00
parent fe8abea5eb
commit 268c9303cd
1 changed files with 45 additions and 0 deletions
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45
src/game/engine/tests/unit/test_city_bridge.gd
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@ -111,3 +111,48 @@ func test_happy_path_enqueue_tick_emits_item_crafted() -> void:
assert_eq(treasury.call("total_count"), 1)
assert_true(treasury.call("contains", "iron_axe"))
func test_enqueue_rejects_when_strategic_resource_missing() -> void:
## Task #4: Rust-side enforcement of requires_resource. A resource-gated
## item must be rejected when the player does NOT control the resource,
## and accepted when they do. Mirrors mc-city test
## `production_rejects_resource_gated_without_resource`.
if not ClassDB.class_exists("GdCity"):
pass_test("GdCity extension not loaded in this test run")
return
if not ClassDB.class_exists("GdStockpile"):
pass_test("GdStockpile extension not loaded in this test run")
return
var city: RefCounted = CityScript.new("khazad", ["smithy"] as Array[String])
var items_json: String = JSON.stringify([
{
"id": "cavalry_axe",
"production": {
"building": "smithy",
"production_cost": 30,
"materials": [{"resource": "iron_ore", "amount": 2}],
"requires_tech": "bronze_working",
"requires_resource": "horses",
},
},
])
assert_true(city.load_items_json(items_json))
var stockpile: RefCounted = ClassDB.instantiate("GdStockpile") as RefCounted
stockpile.call("add", "iron_ore", 4)
var techs: Array[String] = ["bronze_working"]
var err_no: String = city.enqueue_item("cavalry_axe", stockpile, techs, [] as Array[String])
assert_ne(err_no, "", "enqueue must reject when strategic resource missing")
assert_true("horses" in err_no, "error should name the missing resource")
assert_eq(stockpile.call("available", "iron_ore"), 4, "no materials consumed on rejection")
assert_eq(city.queue_len("smithy"), 0)
var err_ok: String = city.enqueue_item(
"cavalry_axe", stockpile, techs, ["horses"] as Array[String]
)
assert_eq(err_ok, "", "enqueue should succeed once resource is controlled")
assert_eq(stockpile.call("available", "iron_ore"), 2, "materials consumed on success")
assert_eq(city.queue_len("smithy"), 1)