What is BDD?

BDD (Behavior-Driven Development) focuses on:

• shared understanding between dev/QA/product
• writing behavior examples first

BDD uses:

• Gherkin feature files (Given/When/Then)
• step definitions in code

When BDD is useful

• multiple stakeholders collaborate
• requirements are unclear or change often
• acceptance criteria must be traceable

How behave fits

behavebehave runs feature scenarios and maps steps to Python.

  graph LR
A[feature.feature] --> B["Step definitions (.py)"]
B --> C[Application under test]