Granted this is a very large test surface, but it still leaves a coverage hole for a body of code that, to date, has only executed in the presence of specific hardware (be it virtual or physical), makes up the majority of the kernel source, and sees the highest rate of change: device drivers. The libnvdimm subsystem is one of the latest additions to the kernel's driver infrastructure; it layers services over persistent memory to make access to that memory safer and more reliable. To the best of this author’s knowledge, libnvdimm is the first upstream device-driver subsystem to integrate in-kernel interface mocking techniques in support of unit testing.

tfw будующее