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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,47 @@ | ||
| import { test, expect } from '@playwright/test'; | ||
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| const limits = { | ||
| timeToFirstByte: 800, | ||
| domContentLoaded: 2000, | ||
| loadComplete: 3000, | ||
| firstContentfulPaint: 1500 | ||
| }; | ||
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| test.describe('Performance Tests', () => { | ||
| test('should keep performanceMetrics under limits', async ({ page }) => { | ||
| await page.setExtraHTTPHeaders({ Accept: 'text/html' }); | ||
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| const response = await page.goto('/'); | ||
| expect(response?.status()).toBe(200); | ||
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| // Get performance metrics using modern APIs | ||
| const performanceMetrics = await page.evaluate(() => { | ||
| const navigation = performance.getEntriesByType( | ||
| 'navigation' | ||
| )[0] as PerformanceNavigationTiming; | ||
| const paintEntries = performance.getEntriesByType('paint'); | ||
| const firstPaint = paintEntries.find((entry) => entry.name === 'first-paint'); | ||
| const firstContentfulPaint = paintEntries.find( | ||
| (entry) => entry.name === 'first-contentful-paint' | ||
| ); | ||
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| return { | ||
| // Navigation timing metrics | ||
| domContentLoaded: navigation.domContentLoadedEventEnd - navigation.startTime, | ||
| loadComplete: navigation.loadEventEnd - navigation.startTime, | ||
| timeToFirstByte: navigation.responseStart - navigation.requestStart, | ||
| domInteractive: navigation.domInteractive - navigation.startTime, | ||
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| // Paint timing metrics | ||
| firstPaint: firstPaint ? firstPaint.startTime : 0, | ||
| firstContentfulPaint: firstContentfulPaint ? firstContentfulPaint.startTime : 0 | ||
| }; | ||
| }); | ||
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| // Assert on the metrics | ||
| expect(performanceMetrics.timeToFirstByte).toBeLessThan(limits.timeToFirstByte); | ||
| expect(performanceMetrics.domContentLoaded).toBeLessThan(limits.domContentLoaded); | ||
| expect(performanceMetrics.loadComplete).toBeLessThan(limits.loadComplete); | ||
| expect(performanceMetrics.firstContentfulPaint).toBeLessThan(limits.firstContentfulPaint); | ||
| }); | ||
| }); |
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