One essential tool that we as software developers rely on is known as “test doubles.” These versatile components come in various forms, including dummies, fakes, stubs, spies, and mocks. However, like other power tools, they require careful handling to prevent unintended consequences.

In this post, Francois explores the strategic use of test doubles at the boundaries of our application, harnessing their full potential while minimizing associated risks.

Read more here: Test doubles: Testing at the boundaries of your Ruby application