We now have a function get_user_circle_class
that returns one of these values:
"user_circle_green"
"user_circle_orange"
"user_circle_empty"
And we put that in the templates.
And then CSS renders the circle of the appropriate
color.
The unit tests now explicitly capture whether
we are rendering the correct kind of circle.
We now compute the class that drives the tiny
green/orange/empty dot in the user popover using
the same logic as the buddy list.
This was broken in the early implementation of
set/clear-away, but it was never released.
Fixes#11413
This run_test helper sets up a convention that allows
us to give really short tracebacks for errors, and
eventually we can have more control over running
individual tests. (The latter goal has some
complications, since we often intentionally leak
setup in tests.)
