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authorBernhard Voelker <mail@bernhard-voelker.de>2015-01-14 17:38:12 +0100
committerBernhard Voelker <mail@bernhard-voelker.de>2015-01-14 17:38:12 +0100
commite84046dbe6dd26bfcea7edf6fb419bea274635ab (patch)
tree50160bef015be6a261b0986762e23a449657fe0b /tests/dd
parent58cff8a009ed9b8280c5f35074cef97231286023 (diff)
downloadcoreutils-e84046dbe6dd26bfcea7edf6fb419bea274635ab.tar.xz
tests: use compare-vs-/dev/null instead of 'test -s'
When some program produces unexpected output, that use of compare-vs-/dev/null will ensure that the surprising output is printed in the test's output. With "test -s err" only, one would have to instrument and rerun in order to see the offending output. * cfg.mk (sc_prohibit_and_fail_1): Exempt 'compare' from this check. * tests/dd/misc.sh: Change "tests -s ... || fail=1" to "compare /dev/null ... && fail=1". * tests/misc/nice.sh: Likewise. * tests/rm/read-only.sh: Likewise. * tests/tail-2/inotify-race.sh: Likewise. * tests/touch/no-dereference.sh: Likewise. Suggested by Jim Meyering in http://lists.gnu.org/archive/html/coreutils/2015-01/msg00042.html
Diffstat (limited to 'tests/dd')
-rwxr-xr-xtests/dd/misc.sh2
1 files changed, 1 insertions, 1 deletions
diff --git a/tests/dd/misc.sh b/tests/dd/misc.sh
index 2a536e8d7..bc5fb37e1 100755
--- a/tests/dd/misc.sh
+++ b/tests/dd/misc.sh
@@ -40,7 +40,7 @@ dd status=noxfer status=none if=$tmp_in of=/dev/null 2> err || fail=1
compare /dev/null err || fail=1
# check later status=noxfer overrides earlier status=none
dd status=none status=noxfer if=$tmp_in of=/dev/null 2> err || fail=1
-test -s err || fail=1
+compare /dev/null err && fail=1
dd if=$tmp_in of=$tmp_out 2> /dev/null || fail=1
compare $tmp_in $tmp_out || fail=1