Jun 16, 2026 TypeScript let me pass a user ID where an order ID belongs Type aliases don't create distinct types in TypeScript. Branded types do, and they can save you from mixing up identifiers at compile time. type-level-correctnesstypescriptbranded-typesnewtypes
Jun 15, 2026 Differential Testing Works Without a Formal Proof, but Common-Mode Failures Are the Catch Differential testing lets you find bugs without knowing the correct answer. The problem is that correlated mistakes look like agreement. n-version-programmingdifferential-testingformal-methodstrust
Jun 14, 2026 Testing Won't Prove Two Functions Are Equivalent. Here's What Will. N-version programming assumes your implementations agree. n-version-programmingequivalence-testingformal-methodsverification
Jun 13, 2026 What If My LLM Variants Disagree? Which One Is Right? Running multiple LLMs in parallel catches errors that any single model will confidently ship. n-version-programmingllmdifferential-testingdisagreement-resolution
Jun 12, 2026 Five Implementations and No Majority: How to Actually Pick the Best One N-version programming sounds simple: run multiple implementations and pick the best answer. In practice, 'best' is a lot harder to define than 'most common.' n-version-programmingimplementation-selectiondifferential-testingai-engineering
Jun 11, 2026 The Same LLM Can Write Five Versions of Your Function. Here's How to Make Them Actually Different. N-version programming with LLMs doesn't require multiple models. n-version-programmingllmdiverse-implementationsai-engineering
Jun 10, 2026 NASA Ran 27 Copies of the Same Program. The Bugs Voted as a Bloc. N-version programming promised that independent teams would make independent mistakes. n-version-programmingnasafault-tolerancesoftware-history
Jun 9, 2026 Half Your Cucumber Scenarios Are Skipped. Here's Why That Status Is Lying to You. Cucumber's 'skipped' status hides three completely different problems. Here's how to diagnose which one is eating your test suite, and how to stop it. deep-divescucumberbddtest-maintenance
Jun 8, 2026 Your Gherkin specs are lying to you Gherkin specs drift out of sync the moment you trust humans to update them manually. Here's how to automate the checks that keep feature files honest. deep-divesgherkinbddliving-documentation
Jun 7, 2026 Your Compiler Checks Syntax. Your Tests Should Check Architecture. Most teams document architecture rules in wikis. Here's how to write them as executable tests that fail CI when your dependency graph drifts. deep-divesarchitecture-testingclean-architectureci-cd
