src/app/components/Header.test.ts

import { describe, expect, it } from 'vitest';
import { isSafariUserAgent } from './Header';

describe('Safari performance notice routing', () => {
  it('detects desktop Safari without matching Chromium user agents', () => {
    expect(isSafariUserAgent('Mozilla/5.0 AppleWebKit/605.1.15 Version/26.5 Safari/605.1.15')).toBe(true);
    expect(isSafariUserAgent('Mozilla/5.0 AppleWebKit/537.36 Chrome/150.0.0.0 Safari/537.36')).toBe(false);
    expect(isSafariUserAgent('Mozilla/5.0 AppleWebKit/537.36 HeadlessChrome/150.0.0.0 Safari/537.36')).toBe(false);
    expect(isSafariUserAgent('Mozilla/5.0 AppleWebKit/537.36 Edg/150.0.0.0 Safari/537.36')).toBe(false);
  });
});