tests: add lsblk test script

Signed-off-by: Karel Zak <kzak@redhat.com>

tests/ts/lsblk/README

@@ -0,0 +1,19 @@
+
+Howto add new lsblk test:
+
+* run mk-input.sh <testname>
+
+* copy testname.tar.xz file to tests/ts/lsblk/dumps
+
+* copy lsblk-* files from the tarball to tests/expected/lsblk/
+
+* run ./tests/run.sh lsblk
+
+* git add tests/ts/lsblk/testname.tar.xz
+  git add tests/expected/lsblk/lsblk-testname*
+
+
+Note that we do not use directly lsblk-* from the tarball. It's better to keep
+copy of the files in the tests/expected/lsblk/, because output formatting may
+be different in the current version. The version in the tarball is just initial
+hint only.

tests/ts/lsblk/lsblk

@@ -0,0 +1,56 @@
+#!/bin/bash
+#
+# Copyright (C) 2018 Karel Zak <kzak@redhat.com> 
+#
+# This file is part of util-linux.
+#
+# This file 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 file 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/>.
+#
+TS_TOPDIR="${0%/*}/../.."
+. $TS_TOPDIR/functions.sh
+
+ts_init "$*"
+
+ts_check_test_command "$TS_CMD_LSBLK"
+ts_check_prog xz
+ts_check_prog tar
+
+for dump in $(ls $TS_SELF/dumps/*.tar.xz | sort); do
+	name=$(basename $dump .tar.xz)
+	dumpdir="$TS_OUTDIR/dumps"
+
+	mkdir -p $dumpdir
+	tar -C $dumpdir --xz -xf $dump
+
+	#
+	# Read *.cols from the tarball, but the expected output is not used
+	# from the tarball due to changes in lsblk fomatting etc. We keep up to
+	# date version in tests/expected/lsblk.
+	#
+	for cols_file in $(ls $dumpdir/$name/*.cols | sort); do
+		subname=$(basename $cols_file .cols)
+		subtestname="${name}-${subname}"
+
+		ts_init_subtest $subtestname
+		cols=$(cat $cols_file)
+		${TS_CMD_LSBLK} --sysroot "${dumpdir}/${name}" \
+			        --output $cols \
+			        >"${TS_OUTPUT}" 2>&1
+
+		ts_finalize_subtest
+	done
+done
+
+ts_finalize
+

tests/ts/lsblk/mk-input.sh

@@ -3,7 +3,7 @@
 # Copyright (C) 2018 Karel Zak <kzak@redhat.com>
 #
 # This script makes a copy of relevant files from /sys and /proc.
-# The files are useful for lscpu(1) regression tests.
+# The files are useful for lsblk(1) regression tests.
 #
 progname=$(basename $0)
 
@@ -13,6 +13,8 @@ if [ -z "$1" ]; then
 fi
 
 TS_DUMP="$1"
+TS_NAME=$(basename ${TS_DUMP})
+TS_TARBALL="$TS_DUMP.tar.xz"
 TS_CMD_LSBLK=${TS_CMD_LSBLK:-"lsblk"}
 
 #
@@ -70,12 +72,21 @@ done
 
 
 function mk_output {
-	cols="$2"
-	name="$1"
+	local cols="NAME,${2}"
+	local subname="$1"
 
-	$TS_CMD_LSBLK -o NAME,${cols} > ${TS_DUMP}/lsblk.${name}
+	echo "$cols" > ${TS_DUMP}/${subname}.cols
+	$TS_CMD_LSBLK -o ${cols} > ${TS_DUMP}/lsblk-${TS_NAME}-${subname}
 }
 
+
+LANG="POSIX"
+LANGUAGE="POSIX"
+LC_ALL="POSIX"
+CHARSET="UTF-8"
+
+export LANG LANGUAGE LC_ALL CHARSET
+
 #
 # lsblk info
 #
@@ -90,9 +101,9 @@ mk_output discard DISC-ALN,DISC-GRAN,DISC-MAX,DISC-ZERO
 mk_output zone ZONED
 
 
-tar zcvf lsblk-$TS_DUMP.tar.gz $TS_DUMP
+tar --xz -cvf ${TS_TARBALL} $TS_DUMP
 rm -rf $TS_DUMP
 
-echo -e "\nPlease, send lsblk-$TS_DUMP.tar.gz to util-linux upstream. Thanks!\n"
+echo -e "\nPlease, send ${TS_TARBALL} to util-linux upstream. Thanks!\n"