Test Automation
BDD (Behavior-Driven Development)
A collaborative approach where tests are written in natural language (Given-When-Then) that everyone can understand.
Full definition
Behavior-Driven Development (BDD) extends TDD by writing tests in a human-readable language that business stakeholders, developers, and QA can all understand.
BDD uses the Gherkin syntax: ```gherkin Feature: User Login Scenario: Successful login Given a registered user with email 'user@test.com' When they enter valid credentials And click the Login button Then they should see the dashboard And the welcome message shows their name ```
BDD tools:
- Cucumber: Java, Ruby, JavaScript — the original BDD tool
- SpecFlow: .NET Cucumber implementation
- Behave: Python BDD framework
- Playwright + Cucumber: Modern combination
BDD workflow:
- 1.Product Owner, Developer, and QA collaborate on scenarios (Three Amigos)
- 2.Scenarios are written before development begins
- 3.Developers implement code that makes scenarios pass
- 4.Scenarios serve as living documentation
BDD bridges the gap between business requirements and automated tests. The scenarios ARE the acceptance criteria, the test cases, and the documentation — all in one.