After 90 days in my new project, it seems certain that we’re going to continue testing with Ruby, so I’ve bought an IDE, RubyMine. That gives me a debugger, which is often convenient and sometimes critical.
It also gives me static code analysis (RubyMine calls it code inspection), which is the equivalent of compiler warnings. In a few hours, I’ve reduced the number of warnings to zero, which is where I want it to remain. If there are a lot of unexamined warnings, something important may be hiding therein. (Actually, there was a warning about a case statement that had no else clause. I’m usually scrupulous about that, because is absence can cause downstream symptoms that are difficult to diagnose later on.)
Now my code is warning-free!