Guillermo Larregay

Mutation testing reveals blind spots in test suites by systematically introducing bugs and checking if tests catch them. Blockchain developers should use mutation testing to measure the effectiveness of their test suites and find bugs that traditional testing can miss.

With the release of version 2.1.0 of Echidna, our fuzzing tool for Ethereum smart contracts, we’ve introduced new features for direct retrieval of on-chain data, such as contract code and storage slot values. This data can be used to fuzz deployed contracts in their on-chain state or to test […]