rake - `testrb` でテストはパスするが、Rails の `rake test` でクラッシュする?

Question

キャリアウェーブアップローダーが動作することを確認する簡単なテストがあります。

これにはminitestを使用します。テストは単独で実行すると機能しますが、Rails のrake test...環境では機能しません。

(テスト用のコードは以下に含まれています。)

機能するもの：

• ruby test/uploaders/image_file_uploader_test.rbテストを実行すると、パスします。
• testrb test/uploaders/image_file_uploader_test.rbテストを実行すると、パスします。
• IRB ( Rails コンソールではなく) からテストのすべての行を手動で呼び出すと、コードは期待どおりに動作します。
• ファイルを実行する小さな Rake TestTask を作成すると (タスクも以下にコピーされます)、テストに合格します。

動作しないもの:

• 呼び出すrake test test/uploaders/image_file_uploader_test.rbと、デバッガーにドロップされます (以下のスタック トレース)
• 呼び出すzeus rake test test/uploaders/image_file_uploader_test.rbと、デバッガーにもドロップされます

奇妙なこと：

デバッガーのコール スタックを、失敗の原因となったテストの行に移動し、uploader.store!(@file)それを で直接呼び出すと(rdb:1) p uploader.store!(@file)、うまくいきます! つまり、メソッドは期待どおりに戻り、ファイルは正しいディレクトリに表示されます。

考え？

私はここで本当にばかげたことをしているかもしれません。Rails環境をロードするRakeタスクと関係があるはずですよね？私は物か何かを二重に含んでいますか？Rails環境のイニシャライザと関係がありますか? (NB、store!デバッガーから実行すると、テストで指定された場所にファイルが保存されるため、Rails イニシャライザーが正常にオーバーライドされます)。

バックトレース

からbundle exec rake test test/uploaders/*_test.rb

# Running tests:

/Users/leo/.rvm/gems/ruby-2.0.0-p195@portfolio_site/gems/carrierwave-0.9.0/lib/carrierwave/uploader/store.rb:75: `' (NilClass)
    from /Users/leo/.rvm/gems/ruby-2.0.0-p195@portfolio_site/gems/minitest-4.7.5/lib/minitest/unit.rb:926:in `_run_suite'
    from /Users/leo/.rvm/gems/ruby-2.0.0-p195@portfolio_site/gems/minitest-4.7.5/lib/minitest/parallel_each.rb:71:in `block in _run_suites'
    from /Users/leo/.rvm/gems/ruby-2.0.0-p195@portfolio_site/gems/minitest-4.7.5/lib/minitest/parallel_each.rb:71:in `map'
    from /Users/leo/.rvm/gems/ruby-2.0.0-p195@portfolio_site/gems/minitest-4.7.5/lib/minitest/parallel_each.rb:71:in `_run_suites'
    from /Users/leo/.rvm/gems/ruby-2.0.0-p195@portfolio_site/gems/minitest-4.7.5/lib/minitest/unit.rb:877:in `_run_anything'
    from /Users/leo/.rvm/gems/ruby-2.0.0-p195@portfolio_site/gems/minitest-4.7.5/lib/minitest/unit.rb:1085:in `run_tests'
    from /Users/leo/.rvm/gems/ruby-2.0.0-p195@portfolio_site/gems/minitest-4.7.5/lib/minitest/unit.rb:1072:in `block in _run'
    from /Users/leo/.rvm/gems/ruby-2.0.0-p195@portfolio_site/gems/minitest-4.7.5/lib/minitest/unit.rb:1071:in `each'
    from /Users/leo/.rvm/gems/ruby-2.0.0-p195@portfolio_site/gems/minitest-4.7.5/lib/minitest/unit.rb:1071:in `_run'
    from /Users/leo/.rvm/gems/ruby-2.0.0-p195@portfolio_site/gems/minitest-4.7.5/lib/minitest/unit.rb:1059:in `run'
    from /Users/leo/.rvm/gems/ruby-2.0.0-p195@portfolio_site/gems/minitest-4.7.5/lib/minitest/unit.rb:795:in `block in autorun'
/Users/leo/.rvm/gems/ruby-2.0.0-p195@portfolio_site/gems/carrierwave-0.9.0/lib/carrierwave/uploader/store.rb:75:
(rdb:1) where
--> #1 /Users/leo/.rvm/gems/ruby-2.0.0-p195@portfolio_site/gems/carrierwave-0.9.0/lib/carrierwave/uploader/store.rb:75:in `rmdir'
    #2 /Users/leo/.rvm/gems/ruby-2.0.0-p195@portfolio_site/gems/carrierwave-0.9.0/lib/carrierwave/uploader/store.rb:61:in `with_callbacks'
    #3 /Users/leo/.rvm/gems/ruby-2.0.0-p195@portfolio_site/gems/carrierwave-0.9.0/lib/carrierwave/uploader/store.rb:58:in `store!'
    #4 /Users/leo/Projects/PortfolioSite/test/uploaders/image_file_uploader_test.rb:38:in `test_upload_of_file'
    #5 /Users/leo/.rvm/gems/ruby-2.0.0-p195@portfolio_site/gems/minitest-4.7.5/lib/minitest/unit.rb:1258:in `run'
    #6 /Users/leo/.rvm/gems/ruby-2.0.0-p195@portfolio_site/gems/minitest-4.7.5/lib/minitest/unit.rb:933:in `_run_suite'
    #7 /Users/leo/.rvm/gems/ruby-2.0.0-p195@portfolio_site/gems/minitest-4.7.5/lib/minitest/parallel_each.rb:71:in `_run_suites'
    #8 /Users/leo/.rvm/gems/ruby-2.0.0-p195@portfolio_site/gems/minitest-4.7.5/lib/minitest/unit.rb:877:in `_run_anything'
    #9 /Users/leo/.rvm/gems/ruby-2.0.0-p195@portfolio_site/gems/minitest-4.7.5/lib/minitest/unit.rb:1085:in `run_tests'
    #10 /Users/leo/.rvm/gems/ruby-2.0.0-p195@portfolio_site/gems/minitest-4.7.5/lib/minitest/unit.rb:1072:in `_run'
    #11 /Users/leo/.rvm/gems/ruby-2.0.0-p195@portfolio_site/gems/minitest-4.7.5/lib/minitest/unit.rb:1059:in `run'
(rdb:1) up 3
#4 /Users/leo/Projects/PortfolioSite/test/uploaders/image_file_uploader_test.rb:38:in `test_upload_of_file'
(rdb:1) list
[33, 42] in /Users/leo/Projects/PortfolioSite/test/uploaders/image_file_uploader_test.rb
   33    end
   34
   35    # The whole point of this is to upload a file.
   36    def test_upload_of_file
   37      uploader = ImageFileUploader.new
=> 38      uploader.store!(@file)
   39      # Ensure the uploaded file is correct.
   40      assert_equal Digest::SHA2.file(@file).hexdigest, Digest::SHA2.file("#{STORE_PATH}/#{FILENAME}").hexdigest
   41    end
   42
(rdb:1) p uploader.store!(@file)
[:store_versions!]
(rdb:1)

への呼び出し後p uploader.store!(@file)、ファイルは保存されました

からzeus test test/uploaders/image_file_uploader_test.rb（これは上記とかなり似ています）

/Users/leo/.rvm/gems/ruby-2.0.0-p195@portfolio_site/gems/carrierwave-0.9.0/lib/carrierwave/uploader/store.rb:75: `' (NilClass)
    from /Users/leo/.rvm/gems/ruby-2.0.0-p195@portfolio_site/gems/zeus-0.13.3/lib/zeus.rb:62:in `loop'
    from /Users/leo/.rvm/gems/ruby-2.0.0-p195@portfolio_site/gems/zeus-0.13.3/lib/zeus.rb:62:in `go'
    from /Users/leo/.rvm/gems/ruby-2.0.0-p195@portfolio_site/gems/zeus-0.13.3/lib/zeus.rb:78:in `block (3 levels) in go'
    from /Users/leo/.rvm/gems/ruby-2.0.0-p195@portfolio_site/gems/zeus-0.13.3/lib/zeus.rb:78:in `fork'
    from /Users/leo/.rvm/gems/ruby-2.0.0-p195@portfolio_site/gems/zeus-0.13.3/lib/zeus.rb:78:in `block (2 levels) in go'
    from /Users/leo/.rvm/gems/ruby-2.0.0-p195@portfolio_site/gems/zeus-0.13.3/lib/zeus.rb:73:in `each'
    from /Users/leo/.rvm/gems/ruby-2.0.0-p195@portfolio_site/gems/zeus-0.13.3/lib/zeus.rb:73:in `block in go'
    from /Users/leo/.rvm/gems/ruby-2.0.0-p195@portfolio_site/gems/zeus-0.13.3/lib/zeus.rb:62:in `loop'
    from /Users/leo/.rvm/gems/ruby-2.0.0-p195@portfolio_site/gems/zeus-0.13.3/lib/zeus.rb:62:in `go'
    from /Users/leo/.rvm/gems/ruby-2.0.0-p195@portfolio_site/gems/zeus-0.13.3/lib/zeus.rb:78:in `block (3 levels) in go'
    from /Users/leo/.rvm/gems/ruby-2.0.0-p195@portfolio_site/gems/zeus-0.13.3/lib/zeus.rb:78:in `fork'
    from /Users/leo/.rvm/gems/ruby-2.0.0-p195@portfolio_site/gems/zeus-0.13.3/lib/zeus.rb:78:in `block (2 levels) in go'
    from /Users/leo/.rvm/gems/ruby-2.0.0-p195@portfolio_site/gems/zeus-0.13.3/lib/zeus.rb:73:in `each'
    from /Users/leo/.rvm/gems/ruby-2.0.0-p195@portfolio_site/gems/zeus-0.13.3/lib/zeus.rb:73:in `block in go'
    from /Users/leo/.rvm/gems/ruby-2.0.0-p195@portfolio_site/gems/zeus-0.13.3/lib/zeus.rb:62:in `loop'
    from /Users/leo/.rvm/gems/ruby-2.0.0-p195@portfolio_site/gems/zeus-0.13.3/lib/zeus.rb:62:in `go'
    from -e:1:in `<main>'
/Users/leo/.rvm/gems/ruby-2.0.0-p195@portfolio_site/gems/carrierwave-0.9.0/lib/carrierwave/uploader/store.rb:75:
(rdb:1) where
--> #1 /Users/leo/.rvm/gems/ruby-2.0.0-p195@portfolio_site/gems/carrierwave-0.9.0/lib/carrierwave/uploader/store.rb:75:in `rmdir'
    #2 /Users/leo/.rvm/gems/ruby-2.0.0-p195@portfolio_site/gems/carrierwave-0.9.0/lib/carrierwave/uploader/store.rb:61:in `with_callbacks'
    #3 /Users/leo/.rvm/gems/ruby-2.0.0-p195@portfolio_site/gems/carrierwave-0.9.0/lib/carrierwave/uploader/store.rb:58:in `store!'
    #4 /Users/leo/Projects/PortfolioSite/test/uploaders/image_file_uploader_test.rb:38:in `test_upload_of_file'
    #5 /Users/leo/.rvm/gems/ruby-2.0.0-p195@portfolio_site/gems/minitest-4.7.5/lib/minitest/unit.rb:1258:in `run'
    #6 /Users/leo/.rvm/gems/ruby-2.0.0-p195@portfolio_site/gems/minitest-4.7.5/lib/minitest/unit.rb:933:in `_run_suite'
    #7 /Users/leo/.rvm/gems/ruby-2.0.0-p195@portfolio_site/gems/minitest-4.7.5/lib/minitest/parallel_each.rb:71:in `_run_suites'
    #8 /Users/leo/.rvm/gems/ruby-2.0.0-p195@portfolio_site/gems/minitest-4.7.5/lib/minitest/unit.rb:877:in `_run_anything'
    #9 /Users/leo/.rvm/gems/ruby-2.0.0-p195@portfolio_site/gems/minitest-4.7.5/lib/minitest/unit.rb:1085:in `run_tests'
    #10 /Users/leo/.rvm/gems/ruby-2.0.0-p195@portfolio_site/gems/minitest-4.7.5/lib/minitest/unit.rb:1072:in `_run'
    #11 /Users/leo/.rvm/gems/ruby-2.0.0-p195@portfolio_site/gems/minitest-4.7.5/lib/minitest/unit.rb:1059:in `run'
    #12 /Users/leo/.rvm/gems/ruby-2.0.0-p195@portfolio_site/gems/zeus-0.13.3/lib/zeus/m.rb:203:in `execute'
    #13 /Users/leo/.rvm/gems/ruby-2.0.0-p195@portfolio_site/gems/zeus-0.13.3/lib/zeus/m.rb:121:in `run'
    #14 /Users/leo/.rvm/gems/ruby-2.0.0-p195@portfolio_site/gems/zeus-0.13.3/lib/zeus/m.rb:106:in `run'
    #15 /Users/leo/.rvm/gems/ruby-2.0.0-p195@portfolio_site/gems/zeus-0.13.3/lib/zeus/rails.rb:190:in `test'
    #16 /Users/leo/.rvm/gems/ruby-2.0.0-p195@portfolio_site/gems/zeus-0.13.3/lib/zeus.rb:116:in `command'
    #17 /Users/leo/.rvm/gems/ruby-2.0.0-p195@portfolio_site/gems/zeus-0.13.3/lib/zeus.rb:80:in `go'
(rdb:1) up 3
#4 /Users/leo/Projects/PortfolioSite/test/uploaders/image_file_uploader_test.rb:38:in `test_upload_of_file'
(rdb:1) list
[33, 42] in /Users/leo/Projects/PortfolioSite/test/uploaders/image_file_uploader_test.rb
   33    end
   34
   35    # The whole point of this is to upload a file.
   36    def test_upload_of_file
   37      uploader = ImageFileUploader.new
=> 38      uploader.store!(@file)
   39      # Ensure the uploaded file is correct.
   40      assert_equal Digest::SHA2.file(@file).hexdigest, Digest::SHA2.file("#{STORE_PATH}/#{FILENAME}").hexdigest
   41    end
   42
(rdb:1) p uploader.store!(@file)
[:store_versions!]
(rdb:1)

コード

テスト中のクラス

class ImageFileUploader < CarrierWave::Uploader::Base
  include CarrierWave::RMagick

  version :thumbnail do
    process resize_to_fill: [100,100]
  end

  def extension_white_list
    %w(jpg jpeg gif png)
  end
end

テスト自体

require 'minitest/autorun'
require 'minitest/pride'
require 'minitest/debugger' if ENV['DEBUG']
require 'rmagick'
require 'carrierwave'
require_relative '../../app/uploaders/image_file_uploader'

class ImageFileUploaderTest < MiniTest::Unit::TestCase

  # Before any tests run, set up parameters.
  FILENAME = 'test_photo_1.jpg'
  STORE_DIR = 'tmp/uploads/store'
  CACHE_DIR = 'tmp/uploads/cache'
  STORE_PATH = File.join __dir__, '..', '..', STORE_DIR
  CACHE_PATH = File.join __dir__, '..', '..', CACHE_DIR

  # Override the store and cache dirs so we’re not reliant on Rails.
  class ::ImageFileUploader
    storage :file
    store_dir STORE_PATH
    cache_dir CACHE_PATH
  end

  # Before each test runs, set up a file to test with.
  def setup
    @file = File.new "#{__dir__}/../test_files/#{FILENAME}"
  end

  # After each test runs, clear the results directory so it doesn't influence other tests.
  def teardown
    FileUtils.rm_rf STORE_PATH
    FileUtils.rm_rf CACHE_PATH
  end

  # The whole point of this is to upload a file.
  def test_upload_of_file
    uploader = ImageFileUploader.new
    uploader.store!(@file)
    # Ensure the uploaded file is correct.
    assert_equal Digest::SHA2.file(@file).hexdigest, Digest::SHA2.file("#{STORE_PATH}/#{FILENAME}").hexdigest
  end

end

単純なレーキ タスク

require 'rake/testtask'

Rake::TestTask.new('dev:test') do |t|
  t.test_files = FileList['test/uploaders/*_test.rb']
end

Railsイニシャライザ（注：テストはこれから分離されていると思います...）

CarrierWave.configure do |config|
  config.storage = :file

  # Override the directory where uploaded files will be stored.
  config.store_dir = -> do
    if model.nil?
      "uploads/other/#{Time.now.strftime("%F")}/#{Time.now.strftime("%H-%M-%S")}"
    else
      # This is a sensible default for uploaders that are meant to be mounted:
      "uploads/#{model.class.to_s.underscore}/#{mounted_as}/#{model.id}"
    end
  end

  # Override the directory where temp files will be stored.
  config.cache_dir = -> do
    # This is a better default because it prevents temp files from becoming public and is more consistent with the Rails directory structure.
    Rails.root.join('tmp/uploads')
  end
end

ありがとう！