empty_List_copy=IllegalArgumentException; empty_EnumSet_copy=ok; Collection_reference_to_EnumSet=ok
unmodifiable_empty_wrapper_copy=IllegalArgumentException
input=[SMS, EMAIL, SMS]; selected=[EMAIL, SMS]
not_selected=[PUSH]; complement_of_empty=[EMAIL, SMS, PUSH]
unknown_name=rejected; uncontracted_whitespace=rejected
PASS checks=11
