Test Driven Development - Overview and Adoption

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Test-driven development (TDD) is a software development technique where unit tests are written before code to define desired functionality. Writing tests first helps produce code with better design, lower maintenance costs, and fewer bugs. Key principles of TDD include writing code only to pass failing tests and eliminating duplication. Benefits include better test coverage, easier refactoring, and preventing regressions. TDD helps developers act as users to define behavior through interactions between system components.

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Why Test-Driven Development (TDD)? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

What is TDD? ,[object Object],[object Object],[object Object]

Extreme Programming Practices Overview source: www.xprogramming.com

The TDD cycle ,[object Object],[object Object],[object Object],[object Object],[object Object],Test Code Refactor source: Test-Driven Development by Example, by Kent Beck

TDD Key Principles ,[object Object],[object Object]

Benefits ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Benefits (continued) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Benefits (continued) ,[object Object],[object Object],[object Object]

TDD Adoption Stages ,[object Object],[object Object],[object Object]

TDD Adoption Stages (continued) ,[object Object],[object Object],[object Object],[object Object],source: www.behaviour-driven.org

Pitfall stopping midway ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Adopting a test strategy Unit tests Integration tests Functional tests Acceptance tests + - $$

Another Categorization Unit tests Integration tests + - $$ Unit tests Integration tests End-to-end tests Customer tests Developer tests

Making TDD stick ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],source: www.infoq.com, Making TDD stick, Problems and Solutions for Adopters, by Mark Levison

References ,[object Object],[object Object],[object Object],[object Object],[object Object]

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