test: Use -z instead of ! -n
Warned-by: shellcheck
@@ -136,7 +136,7 @@ for tst in $TESTS; do
if [ ! -d output ]; then
mkdir output
fi
- if [ ! -n "${TEST_MAP[$tst]}" ]; then
+ if [ -z "${TEST_MAP[$tst]}" ]; then
run_test $tst
if [ -n "$TEST_FILES" ]; then
for dev in $TEST_FILES; do
