import { expect, test } from '@playwright/test'; test('desktop page has nav tree', async ({ page }) => { await page.goto('/'); await expect(page.getByRole('navigation')).toBeVisible(); }); test('desktop page does not have nav toggle', async ({ page }) => { await page.goto('/'); await expect(page.getByRole('navigation').getByRole('button')).toBeHidden(); }); test('desktop page has two-column layout', async ({ page }) => { await page.goto('/'); await expect(page.getByTestId('content-pane')).toBeVisible(); await expect(page.getByTestId('preview-pane')).toBeVisible(); }); test('desktop page has no "preview" nav item', async ({ page }) => { await page.goto('/'); await expect(page.getByRole('tab').filter({ hasText: 'preview' })).toBeHidden(); });