Most subdirectories in this project have all, pedantic, and some extra
warnings enabled. Set this for tests as well, as there is no real
justification otherwise.
Signed character arrays can overflow when specifying values greater than
127. The actual data is not affected, but this can cause compiler
warnings. Use unsigned character arrays so the compiler does not
complain about overflows.
This file seems to implicitly return 0 when everything is successful,
but this is unclear when reading it. Explicitly return zero when all
tests are successful.
The FastRPC implementation is loosely related to the sensor shell. It is
useful to provide interfaces over FastRPC for sensor DSP firmware, and
enables the sensor shell to provide most physical sensors. However, the
FastRPC implementation has no meaningful connection with the sensor
shell in terms of code. Move the FastRPC implementation to the project
root to make it more intuitive to install and use and to separate it
from a distinct project.
