bdd-scenarios

BDD scenarios in Gherkin use Given-When-Then steps to express acceptance criteria in business language. Given sets up the initial state, When describes the action, and Then asserts the expected outcome. Each scenario should be independent, declarative, and 3-7 steps long to remain maintainable and testable.

Structure acceptance criteria as clear, scenario-based Given-When-Then statements that capture both happy paths and edge cases. This declarative format ensures testers and developers share a common understanding of requirements and enables automated test coverage across all behavior specifications.

Group related scenarios by feature, keep each scenario focused on a single behavior, and systematically cover edge cases alongside primary workflows. Consistent organization and domain-specific terminology across scenarios make specifications easier to maintain and catch gaps in acceptance criteria.

Yes. BDD scenarios written before implementation serve as executable specifications that guide development. They define what behavior to build, reduce ambiguity in requirements, and provide immediate test coverage once implementation matches the scenario steps.

Scenarios limited to 3-7 steps must stay focused on a single behavior, which prevents scenarios from becoming overly complex or covering multiple concerns. This constraint improves readability and maintainability but requires breaking larger workflows into independent, composable scenarios.

Use consistent domain language, keep scenarios independent so changes to one don't cascade, and enforce declarative business-focused language rather than technical implementation details. Regular review and refactoring of acceptance criteria prevent scenarios from becoming brittle as requirements evolve.