Performance Tests

1import { test, expect } from '@playwright/test';
2 
3test.describe('Page Performance', () => {
4  test('homepage should load within 3 seconds', async ({ page }) => {
5    const startTime = Date.now();
6 
7    await page.goto('/');
8    await page.waitForLoadState('networkidle');
9 
10    const loadTime = Date.now() - startTime;
11    expect(loadTime).toBeLessThan(3000);
12 
13    // Check Core Web Vitals
14    const metrics = await page.evaluate(() => {
15      return new Promise((resolve) => {
16        new PerformanceObserver((list) => {
17          const entries = list.getEntries();
18          resolve({
19            lcp: entries.find(e => e.entryType === 'largest-contentful-paint'),
20            fid: entries.find(e => e.entryType === 'first-input'),
21          });
22        }).observe({ entryTypes: ['largest-contentful-paint', 'first-input'] });
23      });
24    });
25 
26    console.log('Performance metrics:', metrics);
27  });
28 
29  test('API responses should be under 500ms', async ({ page }) => {
30    const apiTimes: number[] = [];
31 
32    page.on('response', (response) => {
33      if (response.url().includes('/api/')) {
34        const timing = response.timing();
35        apiTimes.push(timing.responseEnd - timing.requestStart);
36      }
37    });
38 
39    await page.goto('/dashboard');
40    await page.waitForLoadState('networkidle');
41 
42    for (const time of apiTimes) {
43      expect(time).toBeLessThan(500);
44    }
45  });
46});

1curl -X POST http://localhost:3000/api/brain/generate-test \
2  -H "Content-Type: application/json" \
3  -d '{
4    "type": "performance",
5    "target": "Homepage and dashboard load times"
6  }'