create languages test

src/test/settingMenu/languages_setting.test.ts

@@ -0,0 +1,59 @@
+import { setSetting, SettingKeys } from "#app/system/settings/settings.js";
+import i18next from "i18next";
+import { expect, describe, it, beforeAll, afterEach, vi } from "vitest";
+import GameManager from "../utils/gameManager";
+import OptionSelectUiHandler from "#app/ui/settings/option-select-ui-handler.js";
+import { Mode } from "#app/ui/ui.js";
+import { languages } from "#app/plugins/i18n.js";
+
+class TestingOptionSelectUiHandler extends OptionSelectUiHandler {
+  public get getOptions() {
+    return this.config?.options;
+  }
+}
+
+describe("Check Languages", () => {
+  let phaserGame: Phaser.Game;
+  let game: GameManager;
+
+  beforeAll(async () => {
+    phaserGame = new Phaser.Game({
+      type: Phaser.HEADLESS,
+    });
+    game = new GameManager(phaserGame);
+    expect(languages).not.toBe(undefined);
+    await game.runToTitle();
+  });
+
+  afterEach(async () => {
+    game.phaseInterceptor.restoreOg();
+  });
+
+  it("correct structure: { label: string, handler: function}", () => {
+    vi.spyOn(game.scene.ui, "hideTooltip").mockReturnValueOnce();
+    game.scene.ui.handlers[Mode.OPTION_SELECT] = new TestingOptionSelectUiHandler(game.scene);
+    game.scene.ui.handlers[Mode.OPTION_SELECT].setup();
+    game.setMode(Mode.SETTINGS_DISPLAY);
+
+    setSetting(game.scene, SettingKeys.Language, 1);
+    const optionSelectUiHandler = game.scene.ui.getHandler() as TestingOptionSelectUiHandler;
+
+    expect(
+      optionSelectUiHandler.getOptions?.every((option) => {
+        return (
+          typeof option.label === "string" &&
+          typeof option.handler === "function"
+        );
+      })
+    ).toBe(true);
+  });
+
+  [...Object.values(languages)].map(async (lang, index, array) => {
+    return it(`Check ${lang}`, async () => {
+      expect(i18next.resolvedLanguage).toBe(Object.keys(languages)[index]);
+      i18next.changeLanguage(
+        Object.keys(languages)[(index + 1) % array.length]
+      );
+    });
+  });
+});