/usr/share/php/tests/ is in php-horde-imp 6.1.6-1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/php/tests/imp/
/usr/share/php/tests/imp/Imp/
/usr/share/php/tests/imp/Imp/AllTests.php
/usr/share/php/tests/imp/Imp/Autoload.php
/usr/share/php/tests/imp/Imp/Stub/
/usr/share/php/tests/imp/Imp/Stub/HtmlViewer.php
/usr/share/php/tests/imp/Imp/Stub/ItipRequest.php
/usr/share/php/tests/imp/Imp/Unit/
/usr/share/php/tests/imp/Imp/Unit/ComposeTest.php
/usr/share/php/tests/imp/Imp/Unit/MboxParseTest.php
/usr/share/php/tests/imp/Imp/Unit/Mime/
/usr/share/php/tests/imp/Imp/Unit/Mime/Viewer/
/usr/share/php/tests/imp/Imp/Unit/Mime/Viewer/HtmlTest.php
/usr/share/php/tests/imp/Imp/Unit/Mime/Viewer/ItipTest.php
/usr/share/php/tests/imp/Imp/Unit/QuotaTest.php
/usr/share/php/tests/imp/Imp/Unit/ReferencesTest.php
/usr/share/php/tests/imp/Imp/bootstrap.php
/usr/share/php/tests/imp/Imp/fixtures/
/usr/share/php/tests/imp/Imp/fixtures/test.eml
/usr/share/php/tests/imp/Imp/fixtures/test.mbox
/usr/share/php/tests/imp/Imp/phpunit.xml