In this post we discuss two styles of Test Driven Development (TDD): Bottom Up (Chicago style) and Top Down (London style) also known as mockist style. We show how both styles can be used application development and how refactoring may affect the tests.

Business demands fuel technology shifts The growing shift towards digital business models, accelerated by the pandemic, has revealed the need for increased business and technology alignment across every industry. Customers expect to be able to interact with companies anywhere, anytime, and demand highly responsive, customizable experiences. Gartner refers to organizations with the ability to meet these demands as intelligent, composable businesses1.