my embedded system is using Mender for over-the-air updates. 

The way Mender works is that the embedded system needs to have to rootfs partitions, where one is actively being used, and the other is written to when a over-the-air update is initiated. After the new rootfs is written, Mender will change a variable in the bootloader environment and reboot, so that the system boots into the new rootfs. If there is a problem booting into the new rootfs, the bootloader will be set to boot into the old one again. 

Has anyone here written LAVA tests for systems that use Mender? If so, have you experienced that Mender has complicated the test automation? 

Any Mender boot test templates would also be appreciated.

--