Test System

• Compare

  • Docs

  • Videos

• Test Suites

  • Linux Test Project

  • LTP-DDT

  • Android

  • dev-tools

    • Selftests

    • KUnit - Kernel Unit Testing Framework

  • Storage

    • xfstests

    • blktests

• Test Automation Tools

  • 0Day

  • KernelCI - Python

  • LAVA - Python

  • Fuego - Mitsubishi

  • U-Boot “pytest suite”

  • tbot - Python

  • labgrid - Python

  • r4d - Python

  • Yocto project / ptest

  • Kerneltests.org

  • Robot Framework - Python

  • More

• Static Code Analyzers

  • Sparse

  • clang / LLVM

  • Coccinelle

  • smatch

  • Coverity

• Fuzzing Tools

  • Trinity

  • Syzcaller

  • kcov - code coverage for fuzzing

Compare

Docs

https://elinux.org/Testing https://elinux.org/Test_Systems#Test_Projects https://elinux.org/images/9/9f/Linux-Kernel-Testing-Where-are-we.pdf (2016) http://events17.linuxfoundation.org/sites/events/files/slides/PRE-trunk-ELCE-Automation-beyond-Testing_1.pdf (2017)

Videos

https://www.youtube.com/watch?v=NRywFwe0uwU introduce multiple frameworks available to test your Embedded Linux System and compare the use-cases (2018) Slide: https://elinux.org/images/0/08/Primer-Testing-Your-Embedded-System-What-is-a-ptest-Lava-Fuego-KernelCI-and...-Jan-Simon-Moeller-The-Linux-Foundation.pdf

Test Suites

Linux Test Project

https://github.com/linux-test-project/ltp/wiki

http://ltp.sourceforge.net/documentation/how-to/ltp.php#_3.2

runltp
    filesystem stress tests
    disk I/O tests
    memory management stress tests
    ipc stress
    scheduler tests
    commands functional varification tests
    system call functional varification tests
networktests.sh
    networking related tests
diskio.sh
    tests related to floppy and CD-ROM drives

LTP-DDT

https://software-dl.ti.com/processor-sdk-linux/esd/docs/latest/AM335X/linux/Foundational_Components_Kernel_LTP-DDT_Validation.html LTP-DDT focuses on embedded device driver tests.

Android

https://android.googlesource.com/platform/external/ltp/

dev-tools

https://www.kernel.org/doc/html/latest/dev-tools/

Selftests

https://www.kernel.org/doc/html/latest/dev-tools/kselftest.html

cd /linux/tools/testing/
fault-injection  
ktest  
kunit  
nvdimm  
radix-tree  
scatterlist  
selftests  
vsock

make -C selftests
make -C selftests run_tests

"The magical fantasy land of Linux kernel testing" - Russell Currey (LCA 2020): https://www.youtube.com/watch?v=9Fzd6MapG3Y

KUnit - Kernel Unit Testing Framework

https://www.kernel.org/doc/html/latest/dev-tools/kunit/index.html

Storage

xfstests

https://kernel.googlesource.com/pub/scm/fs/ext2/xfstests-bld/+/HEAD/Documentation/what-is-xfstests.md

xfs, ext2, ext4, cifs, btrfs, f2fs, reiserfs, gfs, jfs, udf, nfs, tmpfs

blktests

https://github.com/osandov/blktests https://zonedstorage.io/tests/blktests/

Group name	Description
block	Block layer generic tests
loop	Loopback device tests
meta	blktests self tests
nbd	Network block device driver tests
nvme	NVMe driver tests
nvmeof-mp	NVME-over-fabrics multipath tests
scsi	SCSI layer tests
srp	SCSI RDMA Protocol driver tests
zbd	Zoned block device tests

Test Automation Tools

0Day

test suites used by 0-Day performance test and LKP test tool: https://01.org/lkp/documentation/0-day/lkp-test-suites-description

KernelCI - Python

https://kernelci.org/ | Linux Foundation project use LAVA with KernelCI: https://github.com/kernelci/kernelci-core/blob/main/doc/lava.md

LAVA - Python

Linaro Automated Validation Architecture | https://www.lavasoftware.org/ Source: https://git.lavasoftware.org/lava/lava Docker: https://github.com/kernelci/lava-docker/

Fuego - Mitsubishi

https://elinux.org/images/6/6c/Introduction-to-Fuego-JJ58-1.pdf Fuego = (Jenkins + abstraction scripts + pre-packaged tests) inside a container

https://elinux.org/images/d/d4/ELCE-2016-Continuous-Integration-and-Autotest-Environment-using-Fuego_Master.pdf

Source: https://bitbucket.org/fuegotest/

Introduction Videos:

• 53min https://www.youtube.com/watch?v=AueBSRN4wLk

• 28min https://www.youtube.com/watch?v=2bSqzhTxLdU

U-Boot “pytest suite”

https://github.com/u-boot/u-boot/tree/master/test/py only for U-Boot (with build support)

tbot - Python

https://tbot.tools/ https://github.com/Rahix/tbot allow running tests in an automated setting (CI).

labgrid - Python

https://github.com/labgrid-project/labgrid#purpose create an abstraction of the hardware control layer needed for testing of embedded systems, automatic software installation and automation during development

• pytest plugin to write tests for embedded systems connecting serial console or SSH

• remote client-exporter-coordinator infrastructure to make boards available from different computers on a network

• power/reset management via drivers for power switches or onewire PIOs

• upload of binaries via USB: imxusbloader/mxsusbloader (bootloader) or fastboot (kernel)

Labgrid itself is not a testing framework, but is intended to be combined with pytest (and additional pytest plugins).

r4d - Python

https://github.com/ci-rt/r4d r4d means 'Remote For Device-under-test' and is an infrastructure for power-control and console access for multiple Linux Boards that should be controlled by a test-infrastructure like jenkins.

Yocto project / ptest

https://wiki.yoctoproject.org/wiki/Ptest Ptest (package test) is a concept for building, installing and running the test suites that are included in many upstream packages, and producing a consistent output format for the results. Source: http://git.yoctoproject.org/clean/cgit.cgi/poky/tree/

Kerneltests.org

Created to test stable release candidates https://kerneltests.org/builders

Robot Framework - Python

http://robotframework.org/robotframework/#user-guide

OperatingSystem | Process | Dialogs / String | Telnet

More

http://fuegotest.org/wiki/Other_test_systems

https://elinux.org/Test_Stack_Survey#Responses

kisskb    
Olof's autobuilder: mainline and next for arm, arm64, powerpc
Olof's autobooter:  mainline, next, arm-soc
Tegra builds: mainline
Buildbot by Mark Brown: x86_64, arm, arm64 (8 builds)
CKI - used by RedHat
Gentoo Kernel CI
hottest notes
Krzk Samsung-SoC
ktest    
Labgrid
LKFT
Opentest
Phoronix
SLAV
syzbot (& syzkaller)
TCF
Xilinx test (aka regression_xlnx)

Static Code Analyzers

Sparse

https://www.kernel.org/doc/html/latest/dev-tools/sparse.html

https://sparse.docs.kernel.org/en/latest/ the semantic parser, provides a compiler frontend capable of parsing most of ANSI C as well as many GCC extensions, and a collection of sample compiler backends, including a static analyzer also called sparse.

clang / LLVM

https://clang-analyzer.llvm.org/ the analyzer is part of Clang

Coccinelle

https://coccinelle.gitlabpages.inria.fr/website/

smatch

https://github.com/error27/smatch a semantic parser of source files

Coverity

Commercial Static Analyzer： https://scan.coverity.com/o/oss_success_stories

Fuzzing Tools

Paper: https://ftp.cs.wisc.edu/paradyn/technical_papers/fuzz.pdf

Trinity

https://github.com/kernelslacker/trinity a system call fuzzer which employs some techniques to pass semi-intelligent arguments to the syscalls being called.

Syzcaller

https://github.com/google/syzkaller/blob/master/docs/internals.md

• Net: https://github.com/google/syzkaller/blob/master/docs/linux/external_fuzzing_network.md

• USB: https://github.com/google/syzkaller/blob/master/docs/linux/external_fuzzing_usb.md

kcov - code coverage for fuzzing

https://www.kernel.org/doc/html/latest/dev-tools/kcov.html kcov exposes kernel code coverage information in a form suitable for coverage- guided fuzzing (randomized testing)

https://www.netbsd.org/~kamil/Maciej_Grochowski-FS_Fuzzing_EuroBSDCon2019.pdf