On Tue, Oct 10, 2017 at 01:15:11PM +0530, Pintu Kumar wrote:
Hi All,
Is anybody familiar with ktests of selftests framework under: tool/testing/ ? I have some queries.
1) What is the difference between ktests and selftests ? How to choose ?
It depends on what you want to do, but usually new things go in the selftest section.
2) How to invoke a test under ktests? For example: I have some user space C program, that tests some kernel driver IOCTL calls. I have a Makefile to build 2 executable for the tests. I invoke those executable from a bash shell script and execute all the tests. How can I do it automatically from ktests ?
Have you read the documentation the kernel has for this: $ make help | grep test Kernel selftest: kselftest - Build and run kernel selftest (run as root) running kselftest on it kselftest-clean - Remove all generated kselftest files kselftest-merge - Merge all the config dependencies of kselftest to existed
3) Similarly, how can I do it using selftests? Using selftests looks much better option for me. But the problem is I have some sub directories to execute the tests. Example: Under, tools/testing/selftests , I have created 2 sub folders. selftests/folders/folder1/ My test setup is under: folder1 How to invoke selftests, for folder1 ?
If anybody have added new tests under ktests of selftests, please provide some reference.
Have you looked at the many patches in the kernel source tree that show how the existing tests are added? That's the best thing to use as a template. Hope this helps, greg k-h