\test "" ##[ \unset autoBeaming #]
%% Layout properties
\test "" ##[ \override Staff . Stem #'thickness = #4.0 #] % OverrideProperty
-\test "" ##[ \once \override Beam #'thickness = #0.6 #]
+\test "" ##[ \once \override Beam #'beam-thickness = #0.6 #]
\test "" ##[ \revert Staff . Stem #'thickness #] % RevertProperty
-\test "" ##[ \revert Beam #'thickness #]
+\test "" ##[ \revert Beam #'beam-thickness #]
%% \applyOutput
\test "" ##[ \applyOutput #'Foo #(lambda (arg) (list)) #]