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To test your integration​,​ simulate transactions without moving any money using special testing values in a sandbox. You can access your sandboxes using the account picker at the top right of the page or in the Dashboard. Test cards act as fake credit cards​,​ and allow you to simulate the following scenarios: Successful payments by card brand or country Card errors due to declines​,​ fraud​,​ or invalid data Disputes and refunds Authentication with 3D Secure and PINs Testing non-card payments works similarly. Non-card payments are payment methods that aren’t credit or debit cards. Stripe supports various non-card payment options​,​ such as digital wallets and bank transfers. Each payment method has its own special values. Don’t use testing environments to load test your integration because you might hit rate limits. To load test your integration​,​ see load testing.