AfRApay.FTM

Run a card terminal on your laptop for testing, using (in theory) any PCSC-compliant contactless reader.

On Linux, you'll need to install pcsclite and have pcscd running. On Windows and macOS, their native smartcard APIs are used.

Naturally, it supports Suica. 🐧 🚅

(The name is a joke about how Mastercard's test network is called MTF: the Mastercard Test Facility.)