---
url: 'https://www.corbado.com/faq/testing-passkey-registration-authentication'
title: 'How should passkey registration & authentication be tested?'
description: 'Learn the best practices for testing passkey registration and authentication to ensure seamless and secure user experiences.'
lang: 'en'
keywords: 'passkey registration testing'
---

# How should passkey registration & authentication be tested?

## How Should Passkey Registration and Authentication Be Tested?

Testing passkey registration and authentication is crucial to ensure these processes are
secure, user-friendly, and compatible across platforms. Here’s how to approach testing:

### 1. Test Passkey Registration

- **Device Coverage:** Verify that users can register passkeys on all supported devices
  (e.g., smartphones, tablets, desktops).
- **Cross-Browser Functionality:** Ensure registration works seamlessly across major
  browsers like Chrome, Safari, Firefox, and Edge.
- **Error Scenarios:** Simulate common errors, such as canceled registration processes,
  and verify that users receive appropriate feedback.

### 2. Test Passkey Authentication

- **Successful Logins:** Confirm users can authenticate using their registered passkeys
  across devices and platforms without issues.
- **Deleted Passkeys:** Attempt logins with deleted passkeys to ensure the system properly
  denies access.
- **Edge Cases:** Test scenarios where network interruptions occur during authentication
  and verify fallback mechanisms.

### 3. Validate Cross-Device Compatibility

- **Cross-Device Usage:** Test that passkeys created on one device (e.g., mobile) can be
  used on another (e.g., desktop) seamlessly.
- **Fallback Options:** Verify that users can fall back to alternative methods (e.g., OTP,
  passwords) when passkeys are unavailable.

### 4. Usability Testing

- **Guidance and Feedback:** Check if users receive clear instructions during registration
  and authentication workflows.
- **Accessibility Compliance:** Ensure the workflows adhere to accessibility standards,
  supporting all user groups.

### 5. Error Handling and Security

- **Invalid Inputs:** Simulate incorrect biometric inputs or failed authentications and
  verify error messages are helpful and secure.
- **Tampering Resistance:** Test scenarios where credentials or device settings are
  tampered with and ensure secure responses.

By thoroughly testing these aspects, you can guarantee a robust and secure passkey system
that enhances the user experience.

## Read the full article