如何测试: RSpec + Carrierwave + Carrierwave_backgrounder + Sidekiq

Question

我用的是Carrierwave，carrierwave_backgrounder，Sidekiq和RSpec。

在没有后台工作的情况下，我通过执行以下操作来测试Carrierwave上传程序的处理：

before do
  ImageUploader.enable_processing = true
  File.open('spec/assets/image.jpg') do |f|
    uploader.store!(f)
  end
end

after do
  ImageUploader.enable_processing = false
  uploader.remove!
end

context 'the thumb version' do
  it 'should scale down a landscape image to be exactly 350 by 350 pixels' do
      uploader.thumb.should have_dimensions(350, 350)
    end
  end
end

context 'the view version' do
  it 'should scale down a landscape image to fit within 1680 by 10000 pixels' do
    uploader.large.should be_no_larger_than(1680, 10000)
  end
end

这些测试主要重复Uploader的实现，但可能包含需要测试的实际逻辑。

我无法让上传程序在测试中进行处理。在carrierwave_backgrounder页面上，他们说使用RSpec测试有一些问题，因为after_commit钩子没有被调用。我尝试使用TestAfterCommit-gem，但没有成功。

上传者：

class ImageUploader < BaseImageUploader
  include ::CarrierWave::Backgrounder::Delay
  before :cache, :save_original_filename

  storage :file

  # Resizes to width 1680px (if the image is larger)
  version :large do
    process resize_to_fit: [1680, 10000]
    process :watermark

    def store_dir
      %(uploads/#{model.parent.class.name.pluralize.downcase}/#{model.parent.id}/large)
    end
  end

  # Creates a thumbnail version
  version :thumb do
    process resize_to_fill: [350, 350]

    def store_dir
      %(uploads/#{model.parent.class.name.pluralize.downcase}/#{model.parent.id}/thumb)
    end
  end

型号：

class Image < ActiveRecord::Base   
  mount_uploader :file, ImageUploader
  process_in_background :file

  def original
    file.url
  end

  def thumb
    file.thumb.url
  end

  def view
    file.large.url
  end
 end

Answer 1

我也有同样的问题，包括我的rails_helper.rb文件：

require 'sidekiq/testing'
Sidekiq::Testing.inline!