使用rspec测试文件上传-Rails

我想测试Rails中的文件上传，但不确定如何执行此操作。

这是控制器代码：

def uploadLicense
    #Create the license object
    @license = License.create(params[:license]) 


    #Get Session ID
    sessid = session[:session_id]

    puts "\n\nSession_id:\n#{sessid}\n"

    #Generate a random string
    chars = ("a".."z").to_a + ("A".."Z").to_a + ("0".."9").to_a
    newpass = ""
    1.upto(5) { |i| newpass << chars[rand(chars.size-1)] }

    #Get the original file name
    upload=params[:upload]
    name =  upload['datafile'].original_filename 

    @license.format = File.extname(name)

    #calculate license ID and location
    @license.location = './public/licenses/' + sessid + newpass + name 

    #Save the license file
    #Fileupload.save(params[:upload], @license.location) 
    File.open(@license.location, "wb") { |f| f.write(upload['datafile'].read) }

     #Set license ID
    @license.license_id = sessid + newpass

    #Save the license
    @license.save

    redirect_to :action => 'show', :id => @license.id 
end

我已经尝试过此规范，但是它不起作用：

it "can upload a license and download a license" do
    file = File.new(Rails.root + 'app/controllers/lic.xml')
    license = HashWithIndifferentAccess.new
    license[:datafile] = file
    info = {:id => 4}
    post :uploadLicense, {:license => info, :upload => license}
end

如何使用rspec模拟文件上传？

您可以使用fixture_file_upload方法来测试文件上传：将测试文件放在“ {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

如果您希望使用params ['upload'] ['datafile']形式的文件

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

我不确定是否可以单独使用RSpec测试文件上传。你试过水豚吗？

attach_file从请求规范中使用capybara的方法测试文件上传很容易。

例如（此代码仅是一个演示）：

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 *，则只需包含测试方法

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

我还没有使用RSpec做到这一点，但是我确实有一个Test :: Unit测试，它对上传照片具有类似的功能。我将上载的文件设置为ActionDispatch :: Http :: UploadedFile的实例，如下所示：

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

类似的事情也可能对您有用。

这就是我使用的方式Rails 6，RSpec以及Rack::Test::UploadedFile

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

ActionDispatch::TestProcess除非您确定要包含的内容，否则请勿包含或任何其他代码。

我必须添加这两个包含项才能使其正常工作：

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