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Prepaid-card fixtures for payment integration tests

Create a prepaid sandbox fixture and test funding-aware UI. Understand reusable numbers, provider-specific behavior, and what the generator does not simulate.

Make the funding case explicit

If your application shows a funding label or branches on a provider’s card metadata, include a prepaid fixture in the test dataset. An explicit case is easier to understand than a generic card object whose intended meaning is hidden.

The socket.help Prepaid card generator currently supplies the published Stripe Mastercard prepaid fixture. The interface shows that supported brand directly rather than offering combinations the tool cannot provide.

Generate and inspect the record

Choose a record count from one to 20, then generate. Each preview includes the same documented prepaid number with sample expiry and CVC values, the funding label, and a PaymentMethod identifier.

Copy a field for a manual sandbox test, or download the JSON for your project. Multiple generated records do not represent separate issued prepaid accounts, stored balances, or redeemable value.

Generate a prepaid fixture with the CLI
socket-help run developer-prepaid-card-generator \
  --options '{"count":"1"}' < /dev/null

Test the rule, not an invented balance

For a funding-aware interface, assert that the prepaid label appears and that the intended branch of your own application runs. Include a credit or debit fixture as a comparison case.

This generator does not simulate loading money, spending down a balance, redeeming a gift card, or an issuer’s rules. If a workflow depends on those behaviors, use the specific provider’s testing facilities. Changing the sample CVC does not create a new payment scenario.

Keep fixtures repeatable

Use the documented PaymentMethod identifier when testing Stripe APIs. For application-only tests, name the fixture by its role, such as prepaid-card-summary, and assert the behavior you expect.

The generator runs locally in the browser and through the same hosted execution interface as other utilities. No file or temporary account is created, so there is no resource lease to manage; hosted usage quotas still apply.

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