1 files changed, 98 insertions, 0 deletions
diff --git a/tests/t6000-dm.sh b/tests/t6000-dm.sh
new file mode 100755
index 0000000..980094d
--- /dev/null
+++ b/tests/t6000-dm.sh
@@ -0,0 +1,98 @@
+#!/bin/sh
+# ensure that parted can distinguish device map types: linear, multipath
+
+# Copyright (C) 2008-2014, 2019-2023 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/>.
+
+. "${srcdir=.}/init.sh"; path_prepend_ ../parted
+
+require_root_
+lvm_init_root_dir_
+
+test "x$ENABLE_DEVICE_MAPPER" = xyes \
+  || skip_ "no device-mapper support"
+
+# Device maps names - should be random to not conflict with existing ones on
+# the system
+linear_=plinear-$$
+mpath_=mpath-$$
+
+d1= d2= d3=
+f1= f2= f3=
+cleanup_fn_() {
+    dmsetup remove $linear_
+    dmsetup remove $mpath_
+    test -n "$d1" && losetup -d "$d1"
+    test -n "$d2" && losetup -d "$d2"
+    test -n "$d3" && losetup -d "$d3"
+    rm -f "$f1" "$f2" "$f3";
+}
+
+f1=$(pwd)/1; d1=$(loop_setup_ "$f1") \
+  || skip_ "is this partition mounted with 'nodev'?"
+
+# setup: create loop devices
+f2=$(pwd)/2 && d2=$(loop_setup_ "$f2") || fail=1
+f3=$(pwd)/3 && d3=$(loop_setup_ "$f3") || fail=1
+
+# In the output of parted's print -s command,
+# replace (possibly varying) $dev name with '...'.
+sanitize() {
+  sed 's,^Disk .*: \([0-9][0-9]*\),Disk ...: \1,;s/ *$//' "$@"
+}
+
+# This loop used to include "multipath", but lvm2 changed
+# in such a way that that no longer works with loop devices.
+# FIXME: use two scsi_debug devices instead.
+for type in linear ; do
+
+  case $type in
+    linear)
+      type_kwd=$linear_
+      dmsetup_cmd="0 1024 linear $d1 0"
+      ;;
+    *)
+      type_kwd=$mpath_
+      dmsetup_cmd="0 1024 multipath 0 0 1 1 round-robin 0 2 0 $d2 $d3"
+      ;;
+  esac
+
+  # setup: create a mapping
+  echo "$dmsetup_cmd" | dmsetup create "$type_kwd" || fail=1
+  dev="$DM_DEV_DIR/mapper/$type_kwd"
+
+  # Create msdos partition table
+  parted -s $dev mklabel msdos > out 2>&1 || fail=1
+  compare /dev/null out || fail=1
+
+  parted -s "$dev" print > out 2>&1 || fail=1
+  sanitize out > k && mv k out || fail=1
+
+  # Create expected output file.
+  cat <<EOF >> exp || fail=1
+Model: Linux device-mapper ($type) (dm)
+Disk ...: 524kB
+Sector size (logical/physical): 512B/512B
+Partition Table: msdos
+Disk Flags:
+
+Number  Start  End  Size  Type  File system  Flags
+
+EOF
+
+  compare exp out || fail=1
+done
+
+Exit $fail