LAVA the Linaro Automation Validation Architecture is now the de facto standard system for testing software (from bootloader to kernel or userspace) on both virtual and real hardware. It's used by many projects to build large testing systems like kernelci or LKFT (Linux Kernel Function Testing project from Linaro). In order to build a stable CI system, we have to ensure that LAVA itself does not regress from one version to another.

In this talk I will present how the LAVA team is intensively using mocking to test LAVA on devices that none in the team ever saw.