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Swift Configuration Objects For Testability
Make testing easier!
This runs alongside my development of a simple design library system that I’m going to import in my project apps and tutorial projects. Take a look at https://github.com/stevencurtis/DesignLibrary/tree/main.
Difficulty: Beginner | Easy | Normal | Challenging
This article has been developed using Xcode 15.0, and Swift 5.9
Configuration objects are used in Swift to encapsulate the configuration of properties within a dedicated object to ensure a given codebase is flexible and maintainable.
Such an approach improves the testability of code by decoupling the code’s behavior from its core functionality.
In this article we are going to look at a couple of example of this, and look at how this can improve the structure of your code in your app.
Terminology:
Configuration object: A design pattern that encapsulates all the settings and parameters an application needs to operate in different environments, such as development, testing, and production. This approach allows for more flexible and maintainable code by externalising configuration details from the business logic, making it easier to adjust behaviour without altering the core application code.
