tree 5e07c2f43f18292f7298a9afd34cb7410181eab1
parent 329e38f76cc2a77085264ce6e0dbe902c33fd7a3
author Andrii Nakryiko <andriin@fb.com> 1564284328 -0700
committer Alexei Starovoitov <ast@kernel.org> 1564292179 -0700

selftests/bpf: abstract away test log output

This patch changes how test output is printed out. By default, if test
had no errors, the only output will be a single line with test number,
name, and verdict at the end, e.g.:

  #31 xdp:OK

If test had any errors, all log output captured during test execution
will be output after test completes.

It's possible to force output of log with `-v` (`--verbose`) option, in
which case output won't be buffered and will be output immediately.

To support this, individual tests are required to use helper methods for
logging: `test__printf()` and `test__vprintf()`.

Signed-off-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>