Explore unit testing for the Linux kernel in this 42-minute conference talk from the Linux Plumbers Conference. Dive into KUnit, a lightweight unit testing and mocking framework that doesn't require kernel installation on test machines or VMs. Learn about the importance of unit testing for Linux, KUnit's implementation, and see a demonstration of its usage. Discover the future roadmap of KUnit, its challenges, and how it fits into the broader Linux kernel testing paradigm. Gain insights into end-to-end testing, integration tests, and comparisons with other unit testing libraries. Understand the speaker's perspective on structuring Linux kernel testing and potential future developments, including TAP features and helper libraries.