# File lib/spec/runner/class_and_arguments_parser.rb, line 5
 5:         def parse(s)
 6:           if s =~ /([a-zA-Z_]+(?:::[a-zA-Z_]+)*):?(.*)/
 7:             arg = $2 == "" ? nil : $2
 8:             [$1, arg]
 9:           else
10:             raise "Couldn't parse #{s.inspect}"
11:           end
12:         end