Re: [PATCH] selftests: ublk: fix behavior when fio is not installed

On Tue, Sep 16, 2025 at 04:11:53PM -0600, Uday Shankar wrote:

Some ublk selftests have strange behavior when fio is not installed. While most tests behave correctly (run if they don't need fio, or skip if they need fio), the following tests have different behavior:

• test_null_01 and test_null_02 try to run fio without checking if it exists first, and fail on any failure of the fio command (including "fio command not found"). So these tests fail when they should skip.
• test_stress_05 runs fio without checking if it exists first, but doesn't fail on fio command failure. This test passes, but that pass is misleading as the test doesn't do anything useful without fio installed. So this test passes when it should skip.

Fix these issues by adding _have_program fio checks to the top of all three of these tests.

Signed-off-by: Uday Shankar ushankar@purestorage.com

Please disregard; it was pointed out to me that I missed a few tests. Will post an updated v2 soon.