Lesson 2: Test-First Development and Automated Feedback

This lesson develops practical understanding of test-first development and automated feedback within the ISTQB Certified Tester Advanced Level Agile Technical Tester (CTAL-ATT) Training. It connects core concepts with realistic testing and quality-engineering decisions.

Learners examine methods, evidence, risks, stakeholder expectations, and implementation considerations before applying the ideas in a focused activity.

Topics Covered

• Test-driven development, red-green-refactor, and unit design
• Acceptance test-driven development and executable examples
• Behavior-driven development and shared domain language
• Unit, component, API, contract, integration, UI, and end-to-end balance
• Automation pyramid, anti-patterns, maintainability, and speed
• Data, environments, service virtualization, and deterministic execution
• Code coverage, mutation concepts, risk coverage, and feedback value

Practical Activity

Apply the lesson concepts to a realistic ISTQB Certified Tester Advanced Level Agile Technical Tester (CTAL-ATT) scenario and document the test approach, evidence, risks, and recommended next actions.

Lesson Outcome

Learners can explain and apply test-first development and automated feedback using structured, risk-aware, and evidence-based testing decisions.