class RuboCop::Cop::RSpec::SubjectStub

def find_subject_expectations(node, subject_names = [], &block)
  subject_names = [*subject_names, *@explicit_subjects[node]]
  subject_names -= @subject_overrides[node] if @subject_overrides[node]
  names = Set[*subject_names, :subject]
  expectation_detected = message_expectation?(node, names)
  return yield(node) if expectation_detected
  node.each_child_node(:send, :def, :block, :begin) do |child|
    find_subject_expectations(child, subject_names, &block)
  end
end