Mockito Tutorial: Learn mocking with 25 Junit Examples - Mockito Step 02: Setting up SUT (System Under Test)

This video tutorial introduces the concept of mocks in testing, focusing on the need for Mockito. It explains the differences between stubs and mocks, and how to choose between them. The tutorial guides through creating Java classes, ToDoService and ToDoBusinessImpl, and implementing methods for filtering ToDos. It discusses unit testing challenges when dependencies are unavailable and sets the stage for understanding Mockito in detail.

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