Mock Nested Method Calls Using Mockito

Date: 2024-12-12

This article demonstrates how to mock nested method calls in Java using Mockito. It explains two approaches: manually mocking each layer of nested calls using when(...).thenReturn(...), and utilizing @Mock(answer = Answers.RETURNS_DEEP_STUBS) for automatic deep stubbing. Both methods allow for efficient testing of complex dependencies without relying on actual implementations. The article emphasizes the importance of balanced mocking, advising against over-reliance which might signal a need for code refactoring.

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