rtla/tests: Check rtla output with grep

Add argument to the check command in the test suite that takes a regular
expression that the output of rtla command is checked against. This
allows testing for specific information in rtla output in addition
to checking the return value.

Two minor improvements are included: running rtla with "eval" so that
arguments with spaces can be passed to it via shell quotations, and
the stdout of pushd and popd is suppressed to clean up the test output.

Cc: John Kacur <[email protected]>
Cc: Luis Goncalves <[email protected]>
Cc: Arnaldo Carvalho de Melo <[email protected]>
Cc: Chang Yin <[email protected]>
Cc: Costa Shulyupin <[email protected]>
Cc: Crystal Wood <[email protected]>
Cc: Gabriele Monaco <[email protected]>
Link: https://lore.kernel.org/[email protected]
Signed-off-by: Tomas Glozar <[email protected]>
Signed-off-by: Steven Rostedt (Google) <[email protected]>

0 files changed, 0 insertions, 0 deletions