1 files changed, 90 insertions, 0 deletions
diff --git a/tests/misc/sort-compress-proc.sh b/tests/misc/sort-compress-proc.sh
new file mode 100755
index 0000000..aa58ee1
--- /dev/null
+++ b/tests/misc/sort-compress-proc.sh
@@ -0,0 +1,90 @@
+#!/bin/sh
+# Test use of compression subprocesses by sort
+
+# Copyright (C) 2010-2016 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
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+. "${srcdir=.}/tests/init.sh"; path_prepend_ ./src
+print_ver_ sort
+expensive_
+
+# Terminate any background processes
+cleanup_() { kill $pid 2>/dev/null && wait $pid; }
+
+SORT_FAILURE=2
+
+seq -w 2000 > exp || fail=1
+tac exp > in || fail=1
+insize=$(stat -c %s - <in) || fail=1
+
+# This compressor's behavior is adjustable via environment variables.
+export PRE_COMPRESS=
+export POST_COMPRESS=
+
+printf '%s\n' '#!'"$SHELL" >compress || framework_failure_
+cat <<\EOF >>compress || framework_failure_
+eval "$PRE_COMPRESS"
+tr 41 14 || exit
+eval "$POST_COMPRESS"
+EOF
+
+chmod +x compress
+
+# "Impatient exit" tests
+#
+# In these test cases, the biggest compressor (or decompressor) exits
+# with nonzero status, after sleeping a bit.  Until coreutils 8.7
+# 'sort' impatiently exited without waiting for its decompression
+# subprocesses in these cases.  Check compression too, while we're here.
+#
+for compress_arg in '' '-d'
+do
+  POST_COMPRESS='
+    test "X$1" != "X'$compress_arg'" || {
+      test "X$1" = "X" && exec <&1
+      size=$(stat -c %s -)
+      exec >/dev/null 2>&1 <&1 || exit
+      expr $size "<" '"$insize"' / 2 || { sleep 1; exit 1; }
+    }
+  ' sort --compress-program=./compress -S 1k --batch-size=2 in > out
+  test $? -eq $SORT_FAILURE || fail=1
+done
+
+# "Pre-exec child" test
+#
+# Ignore a random child process created before 'sort' was exec'ed.
+# This bug was also present in coreutils 8.7.
+#
+( (sleep 1; exec false) & pid=$!
+  PRE_COMPRESS='test -f ok || sleep 2'
+  POST_COMPRESS='touch ok'
+  exec sort --compress-program=./compress -S 1k in >out
+) || fail=1
+compare exp out || fail=1
+test -f ok || fail=1
+rm -f ok
+
+rm -f compress
+
+# If $TMPDIR is relative, give subprocesses time to react when 'sort' exits.
+# Otherwise, under NFS, when 'sort' unlinks the temp files and they
+# are renamed to .nfsXXXX instead of being removed, the parent cleanup
+# of this directory will fail because the files are still open.
+case $TMPDIR in
+/*) ;;
+*) sleep 1;;
+esac
+
+Exit $fail