[5.2] add test for site router (sef)#44253

laoneo merged 3 commits intojoomla:5.2-devjoomla/joomla-cms:5.2-devfrom

heelc29:5.2/tests/site-router-sefheelc29/joomla-cms:5.2/tests/site-router-sefCopy head branch name to clipboard