/**
 * Unit tests for LoadingScreen class
 */

const LoadingScreen = require('../../src/js/screens/loading');

describe('LoadingScreen', () => {
  let loadingScreen;

  beforeEach(() => {
    loadingScreen = new LoadingScreen();
  });

  describe('constructor', () => {
    it('should initialize with progress 0', () => {
      expect(loadingScreen.getProgress()).toBe(0);
    });

    it('should have assets array', () => {
      expect(loadingScreen.assets).toBeDefined();
      expect(Array.isArray(loadingScreen.assets)).toBe(true);
      expect(loadingScreen.assets.length).toBeGreaterThan(0);
    });
  });

  describe('getProgress', () => {
    it('should return current progress', () => {
      expect(loadingScreen.getProgress()).toBe(0);
      
      // Simulate progress update
      loadingScreen.progress = 50;
      expect(loadingScreen.getProgress()).toBe(50);
    });
  });

  describe('asset loading', () => {
    it('should have expected assets', () => {
      expect(loadingScreen.assets).toContain('texture1.png');
      expect(loadingScreen.assets).toContain('texture2.png');
      expect(loadingScreen.assets).toContain('sound1.mp3');
      expect(loadingScreen.assets).toContain('sound2.mp3');
      expect(loadingScreen.assets).toContain('model1.obj');
      expect(loadingScreen.assets).toContain('model2.obj');
    });
  });
});