Rails模型规范通过，Sidekiq规范失败

Question

我正在构建一个运行投票的Rails (4.1.0)应用程序。每个投票都有与n席位的n比赛。以下是我的模型：

class Matchup < ActiveRecord::Base
  has_many :seats, dependent: :destroy

  def winning_seat
    seats.sort { |a,b| a.number_of_votes <=> b.number_of_votes }.last
  end
end

class Seat < ActiveRecord::Base
  belongs_to :matchup

  validates :matchup, presence: true
  validates :number_of_votes, presence: true

  def declare_as_winner
    self.is_winner = true
    self.save
  end

end

我的比赛规格和座位通行证都没有问题。在投票结束时，我需要显示获胜者。我正在使用Sidekiq工作人员来处理投票的结束。它可以做很多事情，但下面是有问题的代码：

class EndOfPollWorker
  include Sidekiq::Worker

def perform(poll_id)
  poll = Poll.where(:id poll_id)
  poll.matchups.each do |matchup|
    # grab the winning seat
    winning_seat = matchup.winning_seat
    # declare it as a winner
    winning_seat.declare_as_winner
  end
end
end

此工人的规格不合格：

require 'rails_helper'

describe 'EndOfPollWorker' do
  before do
    #this simple creates a matchup for each poll question and seat for every entry in the matchup
    @poll = Poll.build_poll  
  end

  context 'when the poll ends' do
    before do
      @winners = @poll.matchups.map { |matchup| matchup.seats.first }
      @losers = @poll.matchups.map { |matchup| matchup.seats.last }
      @winners.each do |seat|
        seat.number_of_votes = 1
      end

      @poll.save!

      @job = EndOfPollWorker.new
    end

    it 'it updates the winner of each matchup' do
      @job.perform(@poll.id)
      @winners.each do |seat|
        expect(seat.is_winner?).to be(true)
      end
    end

    it 'it does not update the loser of each matchup' do
      @job.perform(@poll.id)
      @losers.each do |seat|
        expect(seat.is_winner?).to be(false)
      end
    end

  end

  end
end
end

当我运行这个规范时，我得到：

EndOfPollWorker when poll ends it updates the winner of each matchup
     Failure/Error: expect(seat.is_winner?).to be(true)

       expected true
            got false

我的座椅和对抗赛模型的规格都通过了。我删掉了很多测试代码，所以请原谅任何不匹配的标签，假设这不是问题所在！

此外，当工作线程实际在开发模式下运行时，seats.is_winner属性实际上不会更新。

谢谢

Answer 1

Sidekiq和你的问题无关。您直接调用perform，所以问题出在rspec和activerecord上。例如，将代码从perform方法中提取出来并将其直接放入规范中，它应该仍然会失败。

我怀疑这些实例已经过时了，需要从数据库中重新加载这些实例，以获取在#perform中所做的更改。