{{ user `This article discusses various strategies for improving unit testing in Swift applications, including adding coverage from the ground up, making dependencies testable, verifying error handling code, and running tests automatically using Bitrise.` }}` The article provides a comprehensive overview of unit testing in Swift applications, covering topics such as adding coverage from the ground up, making dependencies testable, verifying error handling code, and running tests automatically using Bitrise. It also discusses the importance of starting with simple tests and gradually increasing complexity, and highlights the benefits of making code more flexible and easier to read through good testing practices. The article is written in a clear and concise manner, making it accessible to developers of all experience levels.