Blockchain testing encompasses a variety of processes aimed at ensuring that blockchain applications operate correctly within their intended environments. It covers smart contract testing, performance testing, security testing, and more. Given the decentralized nature of blockchain technology, testing must confirm that transactions are processed correctly, data integrity is maintained, and the network is resilient against attacks such as double spending or denial-of-service. Furthermore, testers must also focus on usability testing, ensuring end-users can efficiently interact with the application.