We often think production bugs happen because of big oversights or complex logic failures. But sometimes, it’s the smallest things—a single typo—that sneak past every safeguard and cause trouble in live environments. Recently, I had one such experience in a Rails project. It wasn’t a major crash, but it did break a piece of business logic under specific conditions. More importantly, it taught me valuable lessons about code reviews, rubocop, and testing discipline—lessons I’d like to share here. The Safeguards We Already Had Like most teams, we don’t push code directly to production. Instead, we follow a layered safety net: ✅ Pre-commit checks to catch obvious mistakes ✅ RSpec test cases to validate logic ✅ CI pipelines to enforce standards and run checks ✅ Code reviews to ensure human oversight ✅ QA testing before deployment You’d think with all this in place, no typo could possibly slip through. So how did it happen? Where Things Went Wrong: Rubocop and a “Helpfu...
We often think production bugs happen because of big oversights or complex logic failures. But sometimes, it’s the smallest things—a single typo—that sneak past every safeguard and cause trouble in live environments. Recently, I had one such experience in a Rails project. It wasn’t a major crash, but it did break a piece of business logic under specific conditions. More importantly, it taught me valuable lessons about code reviews, rubocop, and testing discipline—lessons I’d like to share here. The Safeguards We Already Had Like most teams, we don’t push code directly to production. Instead, we follow a layered safety net: ✅ Pre-commit checks to catch obvious mistakes ✅ RSpec test cases to validate logic ✅ CI pipelines to enforce standards and run checks ✅ Code reviews to ensure human oversight ✅ QA testing before deployment You’d think with all this in place, no typo could possibly slip through. So how did it happen? Where Things Went Wrong: Rubocop and a “Helpfu...