# Linux Kernel Module Cheat

##### 38.16.1.3. Test userland in full system

TODO: we really need a mechanism to automatically generate the test list automatically e.g. based on path_properties.py, currently there are many tests missing, and we have to add everything manually which is very annoying.

We could just generate it on the fly on the host, and forward it to guest through CLI arguments.

Run all userland tests from inside full system simulation (i.e. not User mode simulation):

    ./test-userland-full-system

This includes, in particular, userland programs that test the kernel modules, which cannot be tested in user mode simulation.

Basically just boots and runs: rootfs_overlay/lkmc/test_all.sh

Failure is detected by looking for the Magic failure string

Most userland programs that don’t rely on kernel modules can also be tested in user mode simulation as explained at: Section 11.2, “User mode tests”.