/usr/share/php/Horde/ is in php-horde-test 2.2.6-1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/php/Horde/Test/
/usr/share/php/Horde/Test/AllTests.php
/usr/share/php/Horde/Test/Autoload.php
/usr/share/php/Horde/Test/Bootstrap.php
/usr/share/php/Horde/Test/Case.php
/usr/share/php/Horde/Test/Exception.php
/usr/share/php/Horde/Test/Factory/
/usr/share/php/Horde/Test/Factory/Alarm.php
/usr/share/php/Horde/Test/Factory/Cache.php
/usr/share/php/Horde/Test/Factory/Db.php
/usr/share/php/Horde/Test/Factory/Group.php
/usr/share/php/Horde/Test/Factory/History.php
/usr/share/php/Horde/Test/Factory/KolabStorage.php
/usr/share/php/Horde/Test/Factory/Mongo.php
/usr/share/php/Horde/Test/Factory/Perms.php
/usr/share/php/Horde/Test/Factory/Prefs.php
/usr/share/php/Horde/Test/Factory/Registry.php
/usr/share/php/Horde/Test/Factory/Session.php
/usr/share/php/Horde/Test/Factory/Share.php
/usr/share/php/Horde/Test/Functional.php
/usr/share/php/Horde/Test/Log.php
/usr/share/php/Horde/Test/Setup.php
/usr/share/php/Horde/Test/Stub/
/usr/share/php/Horde/Test/Stub/Cli.php
/usr/share/php/Horde/Test/Stub/Factory.php
/usr/share/php/Horde/Test/Stub/Parser.php
/usr/share/php/Horde/Test/Stub/Registry.php