/** * Environment Test - Verifies Jest setup is working correctly */ describe('Test Environment', () => { test('should have JSDOM environment available', () => { expect(global.document).toBeDefined(); expect(global.window).toBeDefined(); expect(document.createElement).toBeDefined(); }); test('should be able to create DOM elements', () => { const div = document.createElement('div'); div.textContent = 'Test content'; expect(div.tagName).toBe('DIV'); expect(div.textContent).toBe('Test content'); }); test('should have content container available', () => { const contentEl = document.getElementById('content'); expect(contentEl).toBeDefined(); expect(contentEl.tagName).toBe('DIV'); }); });