This document outlines the design decisions influencing the development of labgrid.
Out of Scope
Out of scope for labgrid are:
Integrated Build System
In contrast to some other tools, labgrid explicitly has no support for building target binaries or images.
Our reasons for this are:
Several full-featured build systems already exist and work well.
We want to test unmodified images produced by any build system (OE/Yocto, PTXdist, Buildroot, Debian, …).
labgrid does not include a test framework.
The main reason is that with pytest we already have a test framework which:
makes it easy to write tests
reduces boilerplate code with flexible fixtures
is easy to extend and has many available plugins
allows using any Python library for creating inputs or processing outputs
supports test report generation
Furthermore, the hardware control functionality needed for testing is also very useful during development, provisioning and other areas, so we don’t want to hide that behind another test framework.
usable as a library for hardware provisioning
device control via:
power and reset
emulation of external services:
USB stick emulation
external update services (Hawkbit)
tests should be equivalent for workstations and servers
discoverability of available boards
distributed board access