You don’t need mocks. At least you don’t need them for the most of the time. Using frameworks such as Mockito or MockK every single time is like taking a sledgehammer to crash a nut. Don’t get me wrong – mocking frameworks are great in their use cases. The sad truth is: overusing mocks can and will harm your codebase. In this talk you will learn ways of writing simple, manageable test doubles. Of course without third-party frameworks. In pure Kotlin. So if you’re interested in de-mocking your code, come to this talk!