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diff --git a/pactest/vercmptest.sh b/pactest/vercmptest.sh
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+#!/bin/sh
+#
+# vercmptest - a test suite for the vercmp/libalpm program
+#
+#   Copyright (c) 2008 by Dan McGee <dan@archlinux.org>
+#
+#   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 2 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/>.
+
+# default binary if one was not specified as $1
+bin='vercmp'
+# holds counts of tests
+total=0
+failure=0
+
+# args:
+# pass ver1 ver2 ret expected
+pass() {
+	echo "test: ver1: $1 ver2: $2 ret: $3 expected: $4"
+	echo "  --> pass"
+}
+
+# args:
+# fail ver1 ver2 ret expected
+fail() {
+	echo "test: ver1: $1 ver2: $2 ret: $3 expected: $4"
+	echo "  ==> FAILURE"
+	failure=$(expr $failure + 1)
+}
+
+# args:
+# runtest ver1 ver2 expected
+runtest() {
+	# run the test
+	ret=$($bin $1 $2)
+	func='pass'
+	[ $ret -eq $3 ] || func='fail'
+	$func $1 $2 $ret $3
+	total=$(expr $total + 1)
+	# and run its mirror case just to be sure
+	reverse=0
+	[ $3 -eq 1 ] && reverse=-1
+	[ $3 -eq -1 ] && reverse=1
+	ret=$($bin $2 $1)
+	func='pass'
+	[ $ret -eq $reverse ] || func='fail'
+	$func $1 $2 $ret $reverse
+	total=$(expr $total + 1)
+}
+
+# use first arg as our binary if specified
+[ -n "$1" ] && bin="$1"
+
+# BEGIN TESTS
+
+# all similar length, no pkgrel
+runtest 1.5.0 1.5.0  0
+runtest 1.5.1 1.5.0  1
+
+# mixed length
+runtest 1.5.1 1.5    1
+
+# with pkgrel, simple
+runtest 1.5.0-1 1.5.0-1  0
+runtest 1.5.0-1 1.5.0-2 -1
+runtest 1.5.0-1 1.5.1-1 -1
+runtest 1.5.0-2 1.5.1-1 -1
+
+# with pkgrel, mixed lengths
+runtest 1.5-1   1.5.1-1 -1
+runtest 1.5-2   1.5.1-1 -1
+runtest 1.5-2   1.5.1-2 -1
+
+# mixed pkgrel inclusion
+runtest 1.5   1.5-1 0
+runtest 1.5-1 1.5   0
+runtest 1.1-1 1.1   0
+runtest 1.0-1 1.1  -1
+runtest 1.1-1 1.0   1
+
+#END TESTS
+
+echo
+if [ $failure -eq 0 ]; then
+	echo "All $total tests successful"
+	exit 0
+fi
+
+echo "$failure of $total tests failed"
+exit 1