在 rspec 测试期间，在 after_save 回调中的 ActiveRecord 保存不会持续存在

Question

我正在开发一个桌上足球记录应用程序。

我的模型遵循以下方案： 比赛 -> 球队 -> 位置 -> 进球

在 Goal 中，我有一个 after_save，它将检查任何一支球队是否进了 10 个球。如果一个团队有，那么它设置一个获胜者（团队）并设置 Game.completed_at。

此功能似乎通过用户测试在实践中保存了获胜者和 Game.completed_at，但在团队达到 10 个目标后的我的 Rspec 测试中，我看到在 Goal 中调用了 after_save 回调，但在测试中的回调之后它为如果没有保存这些列。我不确定发生了什么。

class Goal < ActiveRecord::Base
  after_save :complete_game
    def complete_game

      game = self.position.team.game
      isGameComplete = false

      game.teams.each do |team|
        if team.get_goals_total == 10
            team.winner = true
            team.save!
            puts "complete_game: team.winner: #{team.winner}"

            game.completed_at = DateTime.now
            game.save!

            isGameComplete = true
      end
    end
    puts "complete_game: game.completed_at: #{game.completed_at}"
  end

Rspec 测试：

it "sets a winner after ten goals" do 
  @blue_team.positions.first.goals.create
  @blue_team.positions.first.goals.create
  @blue_team.positions.first.goals.create
  @blue_team.positions.first.goals.create
  @blue_team.positions.first.goals.create
  @blue_team.positions.first.goals.create
  @blue_team.positions.first.goals.create
  @blue_team.positions.first.goals.create
  @blue_team.positions.first.goals.create
  @blue_team.positions.first.goals.create

  puts "winner: #{@blue_team.winner}"
  puts "completed_at: '#{@game.completed_at}'"

  expect(@blue_team.winner).to be true
end

Rspec 输出：

complete_game: game.completed_at:
complete_game: game.completed_at:
complete_game: game.completed_at:
complete_game: game.completed_at:
complete_game: game.completed_at:
complete_game: game.completed_at:
complete_game: game.completed_at:
complete_game: game.completed_at:
complete_game: game.completed_at:
complete_game: team.winner: true
complete_game: game.completed_at: 02/20/2015 12:44 PM
TEST OUTPUT: winner: false
TEST OUTPUT: completed_at: ''
    sets a winner after ten goals (FAILED - 1)

查看日志，after_save 设置了获胜者/完成_at，但在“测试输出”中的回调之外，未设置获胜者/完成_at。

rspec 测试中的回调不会保留在 after_save 回调中所做的更改吗？在生产中工作，似乎没有保存测试中的更改。

Answer 1

在 reddit.com/r/rails (http://www.reddit.com/r/rails/comments/2wlhrf/how_to_testing_before_save_callbacks/) 上收到以下问题的回答

在 Team 模型上执行回调后，需要相应对象的 .reload。

测试按预期通过。

it "sets a winner after ten goals" do

  10.times do
    @blue_team.positions.first.goals.create
  end

  expect(@blue_team.reload.winner).to be true
end

Answer 2

你需要stub回调动作：

@blue_team.stub(:complete_game).and_return(true)