测试文件是否在Rails中成功上传

Question

I'm running Rails 3.2.13.

In one of my controllers, the application processes a form by which the users sends a file. The application analyses the file and saves it OR NOT, depending on the analysis.

I want to write a functional test which tests that the correct file gets saved, and that the wrong file doesn't get saved.

I'm loading the file from test/fixtures/files, like this:

resource_file = Rack::Test::UploadedFile.new(Rails.root.
    join('test', 'fixtures', 'files', 'f1.jpg'))

When running the test, where does this file gets saved?

Answer 1

/spec/support/fixture_file.rb

include ActionDispatch::TestProcess
def fixture_file(filename, extension)
  fixture_file_upload(Rails.root.join('spec', 'fixtures', filename), extension)
end

/spec/factories/offers.rb

FactoryGirl.define do 
  factory :offer do
    large_picture { fixture_file("ostrov.jpg", "image/jpeg") }
  end
end

PS It also works for TestUnit