无法弄清楚是什么导致我的测试失败 [英] Can't figure out what's causing my tests to fail
问题描述
我是 Rails 的新手,我在没有进行 TDD 的情况下构建了一个应用程序,但现在我要回去尝试通过所有测试.我已经通过了其中的大部分,但还有一些与我无法弄清楚的同一问题有关.该应用程序也正常运行,我就是无法通过这些测试.
I'm new to rails and I built an app without doing TDD but am now going back and trying to pass all the tests. I've passed most of them but there are a few left relating to the same issue that I can't figure out. The app functions correctly as well, I just can't pass these tests.
测试失败并提供:
1) ProductsController POST create with valid params assigns a newly created product as @product
Failure/Error: post :create, {:product => valid_attributes}, valid_session
Paperclip::AdapterRegistry::NoHandlerError:
No handler found for "#<File:0x007fc6d17b28f8>"
# ./app/controllers/products_controller.rb:43:in `new'
# ./app/controllers/products_controller.rb:43:in `create'
# ./spec/controllers/products_controller_spec.rb:86:in `block (4 levels) in <top (required)>'
2) ProductsController POST create with valid params creates a new Product
Failure/Error: post :create, {:product => valid_attributes}, valid_session
Paperclip::AdapterRegistry::NoHandlerError:
No handler found for "#<File:0x007fc6d1757cf0>"
# ./app/controllers/products_controller.rb:43:in `new'
# ./app/controllers/products_controller.rb:43:in `create'
# ./spec/controllers/products_controller_spec.rb:81:in `block (5 levels) in <top (required)>'
# ./spec/controllers/products_controller_spec.rb:80:in `block (4 levels) in <top (required)>'
3) ProductsController POST create with valid params redirects to the created product
Failure/Error: post :create, {:product => valid_attributes}, valid_session
Paperclip::AdapterRegistry::NoHandlerError:
No handler found for "#<File:0x007fc6d36b3dd8>"
# ./app/controllers/products_controller.rb:43:in `new'
# ./app/controllers/products_controller.rb:43:in `create'
# ./spec/controllers/products_controller_spec.rb:92:in `block (4 levels) in <top (required)>'
我的控制器中的创建"方法:
The "create" method in my controller:
def create
@product = Product.new(params[:product])
respond_to do |format|
if @product.save
format.html { redirect_to admin_path, notice: 'Product was successfully created.' }
format.json { render json: @product, status: :created, location: @product }
else
format.html { render action: "new" }
format.json { render json: @product.errors, status: :unprocessable_entity }
end
end
end
我的模型:
class Product < ActiveRecord::Base
attr_accessible :designed, :features, :photo, :manufactured, :name, :case_study
has_attached_file :photo, {
:styles => {
:thumb => "x50>",
:small => "x150>",
:detail => "x600>"
}
}.merge(PAPERCLIP_STORAGE_OPTIONS)
validates_attachment_presence :photo
validates_attachment_size :photo, :less_than => 5.megabytes
validates_attachment_content_type :photo, :content_type => ['image/jpeg', 'image/png']
end
我的测试:
before(:each) do
@image = File.new(Rails.root + 'spec/fixtures/images/test.png')
end
def valid_attributes
{ "photo" => @image }
end
describe "POST create" do
describe "with valid params" do
it "creates a new Product" do
expect {
post :create, {:product => valid_attributes}, valid_session
}.to change(Product, :count).by(1)
end
it "assigns a newly created product as @product" do
post :create, {:product => valid_attributes}, valid_session
assigns(:product).should be_a(Product)
assigns(:product).should be_persisted
end
it "redirects to the created product" do
post :create, {:product => valid_attributes}, valid_session
response.should redirect_to(admin_path)
end
end
end
推荐答案
如果您使用的是 Rails 3.2,请尝试在测试中发送 UploadedFile
而不是 File
.UploadedFile
在其初始值设定项中接受文件名和内容类型.
If you're using Rails 3.2, try sending an UploadedFile
instead of File
in your tests. UploadedFile
takes a filename, and a content-type in its initializer.
before(:each) do
@image = Rack::Test::UploadedFile.new(Rails.root.join('spec/fixtures/images/test.png'), 'image/png')
end
您可能需要在测试或测试助手中包含 Rack::Test::Methods
.
You might have to include Rack::Test::Methods
in your test or test helper.
这篇关于无法弄清楚是什么导致我的测试失败的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!