使用 rspec 测试文件上传 - rails

您可以使用 fixture_file_upload 方法测试文件上传：将您的测试文件放在 "{Rails.root}/spec/fixtures/files" 目录中

before :each do
  @file = fixture_file_upload('files/test_lic.xml', 'text/xml')
end

it "can upload a license" do
  post :uploadLicense, :upload => @file
  response.should be_success
end

如果您期望文件格式为 params['upload']['datafile']

it "can upload a license" do
  file = Hash.new
  file['datafile'] = @file
  post :uploadLicense, :upload => file
  response.should be_success
end

我不确定您是否可以单独使用 RSpec 测试文件上传。你试过Capybara吗？

使用请求规范中的 capybara 的 attach_file 方法很容易测试文件上传。

例如（此代码仅为演示）：

it "can upload a license" do
  visit upload_license_path
  attach_file "uploadLicense", /path/to/file/to/upload
  click_button "Upload License"
end

it "can download an uploaded license" do
  visit license_path
  click_link "Download Uploaded License"
  page.should have_content("Uploaded License")
end

如果包含 Rack::Test*，只需包含测试方法

describe "my test set" do
  include Rack::Test::Methods

那么您可以使用 UploadedFile 方法：

post "/upload/", "file" => Rack::Test::UploadedFile.new("path/to/file.ext", "mime/type")

*注意：我的示例基于 Sinatra，它扩展了 Rack，但应该与 Rails 一起使用，Rails 也使用 Rack、TTBOMK

我没有使用 RSpec 完成此操作，但我确实有一个 Test::Unit 测试，它对上传照片执行类似的操作。我将上传的文件设置为ActionDispatch::Http::UploadedFile的实例，如下：

test "should create photo" do
  setup_file_upload
  assert_difference('Photo.count') do
    post :create, :photo => @photo.attributes
  end
  assert_redirected_to photo_path(assigns(:photo))
end


def setup_file_upload
  test_photo = ActionDispatch::Http::UploadedFile.new({
    :filename => 'test_photo_1.jpg',
    :type => 'image/jpeg',
    :tempfile => File.new("#{Rails.root}/test/fixtures/files/test_photo_1.jpg")
  })
  @photo = Photo.new(
    :title => 'Uploaded photo', 
    :description => 'Uploaded photo description', 
    :filename => test_photo, 
    :public => true)
end

类似的东西也可能对你有用。

这就是我使用 Rails 6、RSpec 和 Rack::Test::UploadedFile 的方式

describe 'POST /create' do
  it 'responds with success' do
    post :create, params: {
      license: {
        picture: Rack::Test::UploadedFile.new("#{Rails.root}/spec/fixtures/test-pic.png"),
        name: 'test'
      }
    }

    expect(response).to be_successful
  end
end

DO NOT include ActionDispatch::TestProcess 或任何其他代码，除非您确定要包含什么。

我必须添加这两个包括才能使其正常工作：

describe "my test set" do
  include Rack::Test::Methods
  include ActionDispatch::TestProcess