Building smart contracts on Solana using Rust and the Anchor framework requires a mindset shift from traditional Web2 backends. This week, I built a counter program, broke it on purpose, and used my test suite to verify that my security constraints were truly load-bearing. Here is how the program works under the hood and why every test in the suite exists. The Initialize Accounts Struct In Anchor, security boundaries are enforced before your instruction logic ever runs. The Initi...