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-rwxr-xr-xtests/misc/wc-parallel.sh8
1 files changed, 6 insertions, 2 deletions
diff --git a/tests/misc/wc-parallel.sh b/tests/misc/wc-parallel.sh
index 01005820..19497e04 100755
--- a/tests/misc/wc-parallel.sh
+++ b/tests/misc/wc-parallel.sh
@@ -2,7 +2,7 @@
# Ensure that wc prints counts atomically
# so that concurrent processes don't intersperse their output
-# Copyright (C) 2009-2014 Free Software Foundation, Inc.
+# Copyright (C) 2009-2015 Free Software Foundation, Inc.
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
@@ -20,13 +20,17 @@
. "${srcdir=.}/tests/init.sh"; path_prepend_ ./src
print_ver_ wc
+xargs -P2 </dev/null >/dev/null 2>&1 \
+ || skip_ 'xargs -P is required'
+
(mkdir tmp && cd tmp && seq 2000 | xargs touch)
# This will output at least 16KiB per process
# and start 3 processes, with 2 running concurrently,
# which triggers often on Fedora 11 at least.
-(find tmp tmp tmp -type f | xargs -n2000 -P2 wc) |
+(find tmp tmp tmp -type f | xargs -n2000 -P2 wc 2>err) |
sed -n '/0 0 0 /!p' |
grep . > /dev/null && fail=1
+compare /dev/null err || fail=1
Exit $fail