Flutter Design Patterns and Best Practices

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Unit Tests, Widget Tests, and Mocking Dependencies

Testing is a crucial part of developing robust and reliable apps. In Flutter, testing ensures that your widgets and business logic work as expected, providing a seamless experience for users. This chapter will introduce you to the fundamental aspects of testing in Flutter, focusing on unit tests, widget tests, and mocking dependencies.

In this chapter, we’ll guide you through writing unit tests to verify the core logic of your Flutter app. You’ll learn how to create and execute widget tests to ensure your UI components render correctly and interact as expected. Additionally, we’ll cover how to mock dependencies using mockito, which allows you to isolate and test different parts of your app ...