A unit test framework for the Linux kernel

Test driven development is a proven concept for user land projects, and is as far as I have seen to some extent used for kernel development, but is currently limited to what can be tested from user land, either via system call interfaces or by creating mock environments to compile selected kernel code in user land. Testing for instance kernel internal algorithms or usage of them, such as rbtrees, radix trees or sg lists cannot easily be done this way. Also, once the test is in kernel code, there are some very interesting low hanging opportunities such as for instance error injection and simple code coverage. I'd like to demonstrate a tool I created for this purpose, and that we develop and use internally in Oracle. It will be made available on Github for people to look at ahead of this unconference. I submitted a talk proposal for this, but it did not reach up, but I modestly think it is such a simple and good idea that I simply cannot wait yet another year without talking about it!

This talk will present and demonstrate a simple and nonintrusive framework for writing and selectively running unit tests on external and internal kernel APIs.