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Overview

Scroll the page or active element in any direction using mouse wheel or keyboard.
Focus RequirementsScrolling requires the page or a frame to be focused. If an input field or other interactive element has focus, scroll commands may not work as expected. Before scrolling, ensure focus is on the page by:
  • Clicking on a non-interactive area (e.g., page background)
  • Pressing the Escape key to unfocus interactive elements
  • Clicking outside of input fields or text areas
If scroll is still not working, try using Page Down/Page Up keys directly:
await testdriver.pressKeys(['pagedown']); // Scroll down
await testdriver.pressKeys(['pageup']);   // Scroll up

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Syntax

await testdriver.scroll(direction, amount, method)

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Parameters

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direction
string
default:"down"
Direction to scroll: 'up', 'down', 'left', 'right'
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amount
number
default:"300"
Amount to scroll in pixels
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method
string
default:"mouse"
Scroll method: 'mouse' or 'keyboard'

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Returns

Promise<void>

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Examples

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Basic Scrolling

// Scroll down (default)
await testdriver.scroll();

// Scroll down 500 pixels
await testdriver.scroll('down', 500);

// Scroll up
await testdriver.scroll('up');

// Scroll up 200 pixels
await testdriver.scroll('up', 200);

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Horizontal Scrolling

// Scroll right
await testdriver.scroll('right', 300);

// Scroll left
await testdriver.scroll('left', 300);

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Scroll Methods

// Mouse wheel scroll (smooth, pixel-precise)
await testdriver.scroll('down', 300, 'mouse');

// Keyboard scroll (uses Page Down/Up, more compatible)
await testdriver.scroll('down', 300, 'keyboard');

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Scroll Until Found

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scrollUntilText()

Scroll until specific text appears on screen. 
await testdriver.scrollUntilText(text, direction, maxDistance, textMatchMethod, method, invert)
Parameters:
  • text (string) - Text to find
  • direction (string) - Scroll direction (default: 'down')
  • maxDistance (number) - Max pixels to scroll (default: 10000)
  • textMatchMethod (string) - 'turbo' or 'ai' (default: 'turbo')
  • method (string) - 'keyboard' or 'mouse' (default: 'keyboard')
  • invert (boolean) - Scroll until text disappears (default: false)
Examples: 
// Scroll down until "Contact Us" appears
await testdriver.scrollUntilText('Contact Us');

// Scroll up to find text
await testdriver.scrollUntilText('Header', 'up');

// Scroll until text disappears
await testdriver.scrollUntilText('Loading...', 'down', 5000, 'turbo', 'keyboard', true);

// Use AI matching for fuzzy text
await testdriver.scrollUntilText('footer content', 'down', 10000, 'ai');

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scrollUntilImage()

Scroll until a visual element appears. 
await testdriver.scrollUntilImage(description, direction, maxDistance, method, path, invert)
Parameters:
  • description (string) - Description of the image/element
  • direction (string) - Scroll direction (default: 'down')
  • maxDistance (number) - Max pixels to scroll (default: 10000)
  • method (string) - 'keyboard' or 'mouse' (default: 'keyboard')
  • path (string | null) - Path to image template (optional)
  • invert (boolean) - Scroll until image disappears (default: false)
Examples: 
// Scroll until visual element appears
await testdriver.scrollUntilImage('red subscribe button');

// Scroll using image template
await testdriver.scrollUntilImage('', 'down', 10000, 'keyboard', './footer-logo.png');

// Scroll until image disappears
await testdriver.scrollUntilImage('loading spinner', 'down', 5000, 'keyboard', null, true);

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Best Practices

Ensure page has focus before scrolling
// After typing in an input, unfocus it first
await testdriver.find('email input').click();
await testdriver.type('user@example.com');

// Click elsewhere or press Escape before scrolling
await testdriver.pressKeys(['escape']);
// Or click a non-interactive area
// await testdriver.find('page background').click();

// Now scroll will work properly
await testdriver.scroll('down', 300);

// If scroll still doesn't work, use Page Down directly
// await testdriver.pressKeys(['pagedown']);
Choose the right scroll method
// For web pages, mouse scroll is usually smoother
await testdriver.scroll('down', 300, 'mouse');

// For desktop apps or when mouse doesn't work
await testdriver.scroll('down', 300, 'keyboard');
Use scrollUntil for dynamic content
// Instead of guessing scroll amount
await testdriver.scrollUntilText('Load More button');

const loadMoreBtn = await testdriver.find('Load More button');
await loadMoreBtn.click();
Set reasonable max distance
// Avoid infinite scrolling
await testdriver.scrollUntilText('Footer', 'down', 5000); // Max 5000px
Keyboard scroll uses Page Down/UpKeyboard scrolling typically moves by one “page” at a time, which may be more than the specified pixel amount. It’s more compatible but less precise than mouse scrolling.

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Use Cases

// Scroll to load more button
await testdriver.scrollUntilText('Load More');

const loadBtn = await testdriver.find('Load More button');
await loadBtn.click();

await new Promise(r => setTimeout(r, 2000));

// Scroll through list to find item
await testdriver.scrollUntilText('Product #42');

const product = await testdriver.find('Product #42');
await product.click();

// Scroll multiple times for infinite scroll
for (let i = 0; i < 5; i++) {
  await testdriver.scroll('down', 500);
  await new Promise(r => setTimeout(r, 1000)); // Wait for load
}

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Complete Example

import { beforeAll, afterAll, describe, it } from 'vitest';
import TestDriver from 'testdriverai';

describe('Scrolling', () => {
  let testdriver;

  beforeAll(async () => {
    client = new TestDriver(process.env.TD_API_KEY);
    await testdriver.auth();
    await testdriver.connect();
  });

  afterAll(async () => {
    await testdriver.disconnect();
  });

  it('should scroll to find elements', async () => {
    await testdriver.focusApplication('Google Chrome');
    
    // Scroll to footer
    await testdriver.scrollUntilText('Contact Information');
    
    // Click footer link
    const privacyLink = await testdriver.find('Privacy Policy link');
    await privacyLink.click();
    
    await testdriver.assert('privacy policy page is displayed');
  });

  it('should handle infinite scroll', async () => {
    await testdriver.focusApplication('Google Chrome');
    
    // Scroll multiple times to load content
    for (let i = 0; i < 3; i++) {
      await testdriver.scroll('down', 500);
      await new Promise(r => setTimeout(r, 1500)); // Wait for load
    }
    
    // Verify content loaded
    await testdriver.assert('more than 10 items are visible');
  });

  it('should scroll until loading completes', async () => {
    // Scroll until loading spinner disappears
    await testdriver.scrollUntilImage(
      'loading spinner', 
      'down', 
      5000, 
      'keyboard', 
      null, 
      true // invert - wait for it to disappear
    );
    
    // Now interact with loaded content
    const firstResult = await testdriver.find('first search result');
    await firstResult.click();
  });
});