/usr/share/icingaweb2/modules/monitoring/test/php/ is in icingaweb2-module-monitoring 2.1.0-1ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/icingaweb2/modules/monitoring/test/php/application/
/usr/share/icingaweb2/modules/monitoring/test/php/application/views/
/usr/share/icingaweb2/modules/monitoring/test/php/application/views/helpers/
/usr/share/icingaweb2/modules/monitoring/test/php/application/views/helpers/MonitoringFlagsTest.php
/usr/share/icingaweb2/modules/monitoring/test/php/library/
/usr/share/icingaweb2/modules/monitoring/test/php/library/Monitoring/
/usr/share/icingaweb2/modules/monitoring/test/php/library/Monitoring/Object/
/usr/share/icingaweb2/modules/monitoring/test/php/library/Monitoring/Object/MacroTest.php
/usr/share/icingaweb2/modules/monitoring/test/php/library/Monitoring/Plugin/
/usr/share/icingaweb2/modules/monitoring/test/php/library/Monitoring/Plugin/PerfdataSetTest.php
/usr/share/icingaweb2/modules/monitoring/test/php/library/Monitoring/Plugin/PerfdataTest.php
/usr/share/icingaweb2/modules/monitoring/test/php/regression/
/usr/share/icingaweb2/modules/monitoring/test/php/regression/Bug6088Test.php
/usr/share/icingaweb2/modules/monitoring/test/php/regression/Bug7043Test.php