How to Test Keyboard Navigation on Web (Complete Guide)

Testing keyboard navigation on Web apps is crucial to ensure that users can interact with your application seamlessly, regardless of their input method. Many users rely on keyboard navigation due to m

Introduction to Keyboard Navigation Testing

Testing keyboard navigation on Web apps is crucial to ensure that users can interact with your application seamlessly, regardless of their input method. Many users rely on keyboard navigation due to motor disabilities, preference, or when using devices without a touch screen. Common failures in keyboard navigation can lead to frustration, abandoned sessions, and ultimately, a loss of customers.

What to Test

The following test cases cover various aspects of keyboard navigation:

• Happy path scenarios:

+ Successful login using only the keyboard

+ Completing a registration form with keyboard-only input

+ Navigating through a multi-step checkout process using keyboard navigation

• Error scenarios:

+ Handling invalid input in a form field while using keyboard navigation

+ Recovering from a failed login attempt using only the keyboard

• Edge cases:

+ Navigating through a complex menu system using keyboard shortcuts

+ Using keyboard navigation with dynamic content (e.g., autocomplete, tooltips)

• Accessibility considerations:

+ Ensuring that all interactive elements can be reached using the keyboard

+ Verifying that visual focus is correctly indicated for keyboard-focused elements

+ Testing that keyboard navigation works correctly with screen readers

Manual Testing Approach

To manually test keyboard navigation, follow these steps:

1. Launch your Web application in a browser.
2. Disable mouse input by using the keyboard exclusively.
3. Test each interactive element (e.g., buttons, links, form fields) to ensure it can be accessed and activated using the keyboard.
4. Verify visual focus for each element as you navigate to it.
5. Test error handling by intentionally entering invalid input and verifying that the application correctly handles the error.
6. Repeat the process for each happy path scenario, error scenario, and edge case.

Automated Testing Approach

Automating keyboard navigation testing can be achieved using tools like Playwright or Cypress. Here's an example using Playwright:

// Launch the browser and navigate to the page
const { test, expect } = require('@playwright/test');
test('keyboard navigation', async ({ page }) => {
  // Focus the first interactive element
  await page.focus('input:first-of-type');
  // Simulate keyboard navigation to the next element
  await page.keyboard.press('Tab');
  // Verify the next element is focused
  await expect(page.locator('input:nth-of-type(2)')).toBeFocused();
  // Repeat for each interactive element
});

To integrate this into your CI/CD pipeline, you can use GitHub Actions to run your Playwright tests on each commit.

Autonomous Testing with SUSA

SUSA's autonomous testing platform can test keyboard navigation without the need for manual scripting. The novice and accessibility personas are particularly effective at catching keyboard navigation issues, as they simulate users who rely heavily on keyboard input. The power user persona also tests complex keyboard shortcuts and edge cases.

SUSA's testing process involves:

1. Uploading your Web app's URL to the SUSA platform.
2. Selecting the personas to test your application, including those relevant to keyboard navigation.
3. Running the test and reviewing the results, which include issues like inaccessible elements, incorrect visual focus, and broken keyboard navigation.

By leveraging SUSA's autonomous testing capabilities, you can ensure that your Web application provides a seamless keyboard navigation experience for all users, without the need for extensive manual testing or scripting.