Navigate Between Source and Test Files Follow

Is this feature implemented in Rider?

In Keymap settings, there is 'Main menu > Navigate > Test' (I'm using IDEA keymapping, so the shortcut for me is Ctrl + Shift + T).

I can't seem to get it to work. If it's implemented, then I'm guessing that my directory structure/test file name is wrong, but I can't find any information on what it should be.