1 files changed, 57 insertions, 0 deletions
diff --git a/tests/du/one-file-system.sh b/tests/du/one-file-system.sh
new file mode 100755
index 0000000..fff35ea
--- /dev/null
+++ b/tests/du/one-file-system.sh
@@ -0,0 +1,57 @@
+#!/bin/sh
+# Test for bugs in du's --one-file-system (-x) option.
+
+# Copyright (C) 2006-2022 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 <https://www.gnu.org/licenses/>.
+
+. "${srcdir=.}/tests/init.sh"; path_prepend_ ./src
+print_ver_ du
+cleanup_() { rm -rf "$other_partition_tmpdir"; }
+. "$abs_srcdir/tests/other-fs-tmpdir"
+
+mkdir -p b/c y/z d "$other_partition_tmpdir/x" || framework_failure_
+ln -s "$other_partition_tmpdir/x" d || framework_failure_
+
+# Due to a used-uninitialized variable, the "du -x" from coreutils-6.6
+# would not traverse into second and subsequent directories listed
+# on the command line.
+du -ax b y > t || fail=1
+sed 's/^[0-9][0-9]*	//' t > out || framework_failure_
+cat <<\EOF > exp || framework_failure_
+b/c
+b
+y/z
+y
+EOF
+
+compare exp out || fail=1
+
+# "du -xL" reported a zero count for a file in a different file system,
+# instead of ignoring it.
+du -xL d > u || fail=1
+sed 's/^[0-9][0-9]*	//' u > out1 || framework_failure_
+echo d > exp1 || framework_failure_
+compare exp1 out1 || fail=1
+
+# With coreutils-8.15, "du -xs FILE" would print no output.
+touch f
+for opt in -x -xs; do
+  du $opt f > u || fail=1
+  sed 's/^[0-9][0-9]*	//' u > out2 || framework_failure_
+  echo f > exp2 || framework_failure_
+  compare exp2 out2 || fail=1
+done
+
+Exit $fail