An argument for tests. In a team (>3 developers) on a project that will have a lifespan (1+ years) where the cast of characters will change over time, tests pro

An argument for tests. In a team (>3 developers) on a project that will have a lifespan (1+ years) where the cast of characters will change over time, tests provide continuity. The tests specify how functionality is meant to behave. Changes to code can be made with reduced worry about breaking existing functionality. When you're working in this kind of environment, you need to expand your horizon beyond your code and consider the needs of the team and the organization. I wish I worked in language with a REPL that made it easier, but you work with what you have.