【Rspec】メソッドが呼び出される順序をテストする

スタブして、orderedをつける。

Class AAA
  def abc_def
    puts_abc
    puts_def
  end

  def puts_abc
    puts 'abc!'
  end

  def puts_def
    puts 'def!'
  end
end

describe '#abc_def' do
  let(:aaa) { AAA.new }
  it do
    expect(aaa).to receive(puts_abc).ordered
    expect(aaa).to receive(puts_def).ordered
    aaa.abc_def
  end
  # => Success

  it do
    expect(aaa).to receive(puts_def).ordered
    expect(aaa).to receive(puts_abc).ordered
    # ↑順序が逆
    aaa.abc_def
  end
  # => Failure/Error:
  #     received :puts_abc out of order
end