class PowerAssert::Context

def detect_path(parser, return_values)
  return parser.call_paths.flatten.uniq if parser.method_id_set.empty?
  all_paths = parser.call_paths
  return_value_names = return_values.map(&:name)
  uniq_calls = uniq_calls(all_paths)
  uniq_call = return_value_names.find {|i| uniq_calls.include?(i) }
  detected_paths = all_paths.find_all do |path|
    method_names = path.find_all {|ident| ident.type == :method }.map(&:name)
    break [path] if uniq_call and method_names.include?(uniq_call)
    return_value_names == method_names
  end
  return nil unless detected_paths.length == 1
  detected_paths[0]
end