https://osmarpetry.dev/tags/cucumber/Recent content in Cucumber on Osmar PetryHugoen-USWed, 15 Jan 2025 00:00:00 +0000https://osmarpetry.dev/blog/bdd/Wed, 15 Jan 2025 00:00:00 +0000https://osmarpetry.dev/blog/bdd/<h2 id="what-is-bdd">What Is BDD</h2> <p>BDD bridges the gap between business stakeholders and developers by expressing requirements as executable specifications. Instead of writing tests after the fact, you describe the <strong>expected behavior</strong> of the system in plain language, then automate those descriptions.</p> <p>The core loop: <strong>Discovery</strong> (what should the system do?) → <strong>Formulation</strong> (write it in Gherkin) → <strong>Automation</strong> (implement step definitions).</p> <h2 id="bdd-vs-tdd">BDD vs TDD</h2> <p>TDD focuses on unit-level correctness (&ldquo;does this function return the right value?&rdquo;). BDD focuses on system-level behavior (&ldquo;does this feature work from the user&rsquo;s perspective?&rdquo;). In practice they complement each other — use TDD for internal logic, BDD for acceptance and integration tests.</p>