On Tue, Feb 09, 2021 at 06:56:47PM -0800, Darrick J. Wong wrote: > From: Darrick J. Wong <djwong@xxxxxxxxxx> > > Introduce a new --exact-order switch to disable all sorting, filtering > of repeated lines, and shuffling of test order. The goal of this is to > be able to run tests in a specific order, namely to try to reproduce > test failures that could be the result of a -r(andomize) run getting > lucky. > > Signed-off-by: Darrick J. Wong <djwong@xxxxxxxxxx> > --- > check | 36 ++++++++++++++++++++++++++++-------- > 1 file changed, 28 insertions(+), 8 deletions(-) > > > diff --git a/check b/check > index 6f8db858..106ec8e1 100755 > --- a/check > +++ b/check ... > @@ -249,17 +251,22 @@ _prepare_test_list() > trim_test_list $list > done > > - # sort the list of tests into numeric order > - if $randomize; then > - if type shuf >& /dev/null; then > - sorter="shuf" > + # sort the list of tests into numeric order unless we're running tests > + # in the exact order specified > + if ! $exact_order; then > + if $randomize; then > + if type shuf >& /dev/null; then > + sorter="shuf" > + else > + sorter="awk -v seed=$RANDOM -f randomize.awk" > + fi > else > - sorter="awk -v seed=$RANDOM -f randomize.awk" > + sorter="cat" > fi > + list=`sort -n $tmp.list | uniq | $sorter` > else > - sorter="cat" > + list=`cat $tmp.list` Do we want to still filter out duplicates (i.e. uniq) in exact order mode? LGTM either way: Reviewed-by: Brian Foster <bfoster@xxxxxxxxxx> > fi > - list=`sort -n $tmp.list | uniq | $sorter` > rm -f $tmp.list > } > > @@ -304,7 +311,20 @@ while [ $# -gt 0 ]; do > -udiff) diff="$diff -u" ;; > > -n) showme=true ;; > - -r) randomize=true ;; > + -r) > + if $exact_order; then > + echo "Cannot specify -r and --exact-order." > + exit 1 > + fi > + randomize=true > + ;; > + --exact-order) > + if $randomize; then > + echo "Cannnot specify --exact-order and -r." > + exit 1 > + fi > + exact_order=true > + ;; > -i) iterations=$2; shift ;; > -T) timestamp=true ;; > -d) DUMP_OUTPUT=true ;; >