playwright （跨浏览器自动化测试框架）

# 🎭 Playwright

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## [Documentation](https://playwright.dev) | [API reference](https://playwright.dev/docs/api/class-playwright)

Playwright is a framework for web automation and testing. It drives Chromium, Firefox, and WebKit with a single API — in your tests, in your scripts, and as a tool for AI agents.

## Get Started

Choose the path that fits your workflow:

| | Best for | Install |
|---|---|---|
| **[Playwright Test](#playwright-test)** | End-to-end testing | `npm init playwright@latest` |
| **[Playwright CLI](#playwright-cli)** | Coding agents (Claude Code, Copilot) | `npm i -g @playwright/cli@latest` |
| **[Playwright MCP](#playwright-mcp)** | AI agents and LLM-driven automation | `npx @playwright/mcp@latest` |
| **[Playwright Library](#playwright-library)** | Browser automation scripts | `npm i playwright` |
| **[VS Code Extension](#vs-code-extension)** | Test authoring and debugging in VS Code | [Install from Marketplace](https://marketplace.visualstudio.com/items?itemName=ms-playwright.playwright) |

---

## Playwright Test

Playwright Test is a full-featured test runner built for end-to-end testing. It runs tests across Chromium, Firefox, and WebKit with full browser isolation, auto-waiting, and web-first assertions.

### Install

```bash
npm init playwright@latest
```

Or add manually:

```bash
npm i -D @playwright/test
npx playwright install
```

### Write a test

```TypeScript
import { test, expect } from '@playwright/test';

test('has title', async ({ page }) => {
  await page.goto('https://playwright.dev/');
  await expect(page).toHaveTitle(/Playwright/);
});

test('get started link', async ({ page }) => {
  await page.goto('https://playwright.dev/');
  await page.getByRole('link', { name: 'Get started' }).click();
  await expect(page.getByRole('heading', { name: 'Installation' })).toBeVisible();
});
```

### Run tests

```bash
npx playwright test
```

Tests run in parallel across all configured browsers, in headless mode by default. Each test gets a fresh browser context — full isolation with near-zero overhead.

### Key capabilities

**Auto-wait and web-first assertions.** No artificial timeouts. Playwright waits for elements to be actionable, and assertions automatically retry until conditions are