tests: adjust sort-continue not to fail under valgrind

* tests/misc/sort-continue: Don't run cat inside fd-limited shell.
If sort fails to run in an fd-limited shell, skip the test.

1 files changed, 5 insertions, 1 deletions

diff --git a/tests/misc/sort-continue b/tests/misc/sort-continue
index b1031fac3..1b0ef431c 100755
--- a/tests/misc/sort-continue
+++ b/tests/misc/sort-continue
@@ -23,6 +23,10 @@ fi
 
 . $srcdir/test-lib.sh
 
+# Skip the test when running under valgrind.
+( ulimit -n 6; sort < /dev/null ) \
+  || skip_test_ 'fd-limited sort failed; are you running under valgrind?'
+
 for i in $(seq 31); do
   echo $i | tee -a in > __test.$i || framework_failure
 done
@@ -40,7 +44,7 @@ echo 32 | tee -a in > in1
 (
  ulimit -n 6
  exec 3<&- 4<&- 5<&-
- cat in1 | sort -n -m __test.* - > out
+ sort -n -m __test.* - < in1 > out
 ) &&
 compare in out || { fail=1; echo 'stdin not handled properly' 1>&2; }