I have a test suite that generates a test with a name that has a "#" character in it:

User#update_layout_widgets layout change with invalid widgets

This causes the URL that is generated by http://example.com/jenkins/job/cxo-gerrit-gelato/2835/testReport/ to be:

http://example.com/jenkins/job/cxo-gerrit-gelato/2835/testReport/(root)/User#update_layout_widgets%20layout%20change%20with%20too%20many%20columns/User_update_layout_widgets_layout_change_with_too_many_columns_does_not_change_the_layout/

This is wrong, because the '#' isn't being escaped and testReport/(root)/User returns a 404.

Obviously whatever is doing the escaping thinks it's an anchor, not part of the name.