Software developer advocates for custom test fakes over mocking libraries

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A software developer argues that custom test fakes can be preferable to popular mocking libraries like Moq or NSubstitute. The author demonstrates that custom fakes can reduce wordiness and improve test readability compared to traditional mocking. Custom test-doubles also decouple tests from specific method signatures, making dependencies easier to change. This approach allows more implementation freedom and can lead to creating reusable testing tools. The developer concludes that while mocking libraries are powerful, custom fakes offer significant advantages for test design.

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