### Install Chromatic for Storybook Visual Testing

Source: https://context7.com/mojoaxel/awesome-regression-testing/llms.txt

Install Chromatic for Storybook-native visual testing.

```bash
npm install --save-dev chromatic
```

--------------------------------

### Install Percy CLI and Playwright

Source: https://context7.com/mojoaxel/awesome-regression-testing/llms.txt

Install the Percy CLI and Playwright for CI-integrated visual review.

```bash
npm install --save-dev @percy/cli @percy/playwright
```

--------------------------------

### Install Argos CI Playwright Integration

Source: https://context7.com/mojoaxel/awesome-regression-testing/llms.txt

Install the Argos CI Playwright integration for visual testing.

```bash
npm install --save-dev @argos-ci/playwright
```

--------------------------------

### Install and use BackstopJS for screenshot regression

Source: https://context7.com/mojoaxel/awesome-regression-testing/llms.txt

BackstopJS is a config-driven tool for screenshot regression testing. It requires installation and initialization before capturing baselines and running tests.

```bash
# BackstopJS — config-driven screenshot regression via Puppeteer/Playwright
npm install -g backstopjs
backstop init          # scaffold backstop.json
backstop reference     # capture baseline screenshots
backstop test          # diff against baseline; open HTML report on failure
```

--------------------------------

### Use reg-suit for image comparison and reporting

Source: https://context7.com/mojoaxel/awesome-regression-testing/llms.txt

reg-suit is a tool for comparing images, storing snapshots, and reporting differences to platforms like GitHub. It requires global installation and initialization for plugin selection.

```bash
# reg-suit — compare images, store snapshots, report diff to GitHub
npm install -g reg-suit
reg-suit init   # interactive plugin selection (S3, GCS, GitHub notifier …)
reg-suit run    # capture → compare → notify
```

--------------------------------

### Integrate Applitools Eyes with Playwright for visual AI testing

Source: https://context7.com/mojoaxel/awesome-regression-testing/llms.txt

Applitools Eyes provides AI-powered visual testing through SDK wrappers. This example shows integration with Playwright for opening a test, checking a page, and closing the test.

```bash
# Applitools Eyes — AI-powered visual AI via SDK wrappers
npm install @applitools/eyes-playwright
```

```javascript
import { Eyes, Target, Configuration, BatchInfo } from '@applitools/eyes-playwright';
const eyes = new Eyes();
await eyes.open(page, 'My App', 'Homepage test');
await eyes.check('Full page', Target.window().fully());
await eyes.close();
```

--------------------------------

### Use jest-image-snapshot for inline image snapshot testing

Source: https://context7.com/mojoaxel/awesome-regression-testing/llms.txt

jest-image-snapshot allows inline image snapshot testing within Jest test suites. It requires installation and extending Jest's expect API.

```bash
# jest-image-snapshot — inline snapshot testing inside Jest
npm install --save-dev jest-image-snapshot
```

```javascript
# jest.config.js
const { toMatchImageSnapshot } = require('jest-image-snapshot');
expect.extend({ toMatchImageSnapshot });

test('hero banner looks correct', async () => {
  const browser = await puppeteer.launch();
  const page    = await browser.newPage();
  await page.goto('https://example.com');
  const screenshot = await page.screenshot();
  expect(screenshot).toMatchImageSnapshot({
    failureThreshold: 0.01,
    failureThresholdType: 'percent',
  });
  await browser.close();
});
```

--------------------------------

### Configure Lost Pixel for visual regression testing

Source: https://context7.com/mojoaxel/awesome-regression-testing/llms.txt

Lost Pixel is a holistic visual regression tool that supports full pages and Storybook components. Configuration involves installing the package and defining settings in a config file.

```bash
# Lost Pixel — holistic visual regression (full pages + Storybook components)
npm install --save-dev lost-pixel
```

```typescript
# lost-pixel.config.ts
export default {
  storybookShots: { storybookUrl: 'http://localhost:6006' },
  lostPixelProjectId: 'YOUR_PROJECT_ID',
  apiKey: process.env.LOST_PIXEL_API_KEY,
};
```

--------------------------------

### Run Chromatic with Project Token

Source: https://context7.com/mojoaxel/awesome-regression-testing/llms.txt

Execute Chromatic with your project token. Chromatic builds Storybook, captures stories, and posts status checks to pull requests.

```bash
npx chromatic --project-token=<YOUR_PROJECT_TOKEN>
```

--------------------------------

### Configure Playwright for Argos Screenshots

Source: https://context7.com/mojoaxel/awesome-regression-testing/llms.txt

Configure Playwright to capture screenshots only on failure when using Argos. Import `argosScreenshot` in your tests.

```typescript
import { defineConfig } from '@playwright/test';
import { argosScreenshot } from '@argos-ci/playwright';
export default defineConfig({ use: { screenshot: 'only-on-failure' } });
```

```typescript
await argosScreenshot(page, 'homepage');
```

--------------------------------

### Run Percy Exec with Playwright Tests

Source: https://context7.com/mojoaxel/awesome-regression-testing/llms.txt

Execute Playwright tests using Percy for CI integration. Ensure PERCY_TOKEN is set as an environment variable.

```bash
percy exec -- playwright test
```

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