我要回去努力学习TDD测试。我正在编写一个教程，希望我创建与主题相关的SponsoredPosts。
我是TDD测试的新手，所以有点打ic。
我还没有创建包含两个单词“ Sponsored”和“ Posts”的控制器或模型，因此我不确定在处理它们时的协议，因此我将为您提供所有我认为相关的东西，希望您可以告诉我我哪里出了问题。我相信我只是混用了模型的名称和控制器的名称，因为正如您在我的模式文件中看到的那样，“ sponsored_posts”表的属性为“ topic_id”。我承认，在了解如何处理模型或控制器方面，我并不是最擅长的，因此您也可以提供任何解释以进一步帮助我了解我在命名模型或方法时出了错，这将非常有帮助。
这是我的Sponsored_Posts_Controller_Spec：
require 'rails_helper'
include RandomData
RSpec.describe SponsoredPostsController, type: :controller do
let (:my_topic) { Topic.create!(name: RandomData.random_sentence, description: RandomData.random_paragraph) }
let (:my_sponsored_post) { my_topic.sponsored_posts.create!(title: RandomData.random_sentence, body: RandomData.random_paragraph, price: 6) }
describe "GET show" do
it "returns http success" do
get :show, topic_id: my_topic.id, id: my_sponsored_post.id
expect(response).to have_http_status(:success)
end
it "renders the #show view" do
get :show, topic_id: my_topic.id, id: my_sponsored_post.id
expect(response).to render_template :show
end
it "assigns my_sponsored_post to @sponsored_post" do
get :show, topic_id: my_topic.id, id: my_sponsored_post.id
expect(assigns(:sponsored_posts)).to eq(my_sponsored_post)
end
end
end
这是我对Sponsored_Post的模型规格：
require 'rails_helper'
include RandomData
RSpec.describe SponsoredPost, type: :model do
let(:topic) { Topic.create!(name: RandomData.random_sentence, description: RandomData.random_paragraph) }
let(:sponsored_post) { topic.sponsored_posts.create!(title: RandomData.random_sentence, body: RandomData.random_paragraph, price: 6) }
it { should belong_to(:topic) }
describe "attributes" do
it "should respond to title" do
expect(sponsored_posts).to respond_to(:title)
end
it "should respond to body" do
expect(sponsored_posts).to respond_to(:body)
end
it "should respond to price" do
expect(sponsored_posts).to respond_to(:price)
end
end
end
这是我的SponsoredPosts管理员：
class SponsoredPostsController < ApplicationController
def show
@sponsored_post = Sponsored_post.find(params[:id])
end
def new
end
def edit
end
end
这是我的SponsoredPost模型：
class SponsoredPost < ActiveRecord::Base
belongs_to :topic
end
这是我的架构文件：
ActiveRecord::Schema.define(version: 20151102190350) do
create_table "advertisements", force: :cascade do |t|
t.string "title"
t.text "copy"
t.integer "price"
t.datetime "created_at", null: false
t.datetime "updated_at", null: false
end
create_table "comments", force: :cascade do |t|
t.text "body"
t.integer "post_id"
t.datetime "created_at", null: false
t.datetime "updated_at", null: false
end
add_index "comments", ["post_id"], name: "index_comments_on_post_id"
create_table "posts", force: :cascade do |t|
t.string "title"
t.text "body"
t.datetime "created_at", null: false
t.datetime "updated_at", null: false
t.integer "topic_id"
end
add_index "posts", ["topic_id"], name: "index_posts_on_topic_id"
create_table "questions", force: :cascade do |t|
t.string "title"
t.text "body"
t.boolean "resolved"
t.datetime "created_at", null: false
t.datetime "updated_at", null: false
end
create_table "sponsored_posts", force: :cascade do |t|
t.string "title"
t.text "body"
t.integer "price"
t.integer "topic_id"
t.datetime "created_at", null: false
t.datetime "updated_at", null: false
end
add_index "sponsored_posts", ["topic_id"], name: "index_sponsored_posts_on_topic_id"
create_table "topics", force: :cascade do |t|
t.string "name"
t.boolean "public", default: true
t.text "description"
t.datetime "created_at", null: false
t.datetime "updated_at", null: false
end
end
这是我运行SponsoredPost控制器的规范时的输出：
1) SponsoredPostsController GET show returns http success
Failure/Error: let (:my_sponsored_post) { my_topic.sponsored_posts.create!(title: RandomData.random_sentence, body: RandomData.random_paragraph, price: 6) }
ActiveRecord::UnknownAttributeError:
unknown attribute 'topic_id' for SponsoredPost.
2) SponsoredPostsController GET show renders the #show view
Failure/Error: let (:my_sponsored_post) { my_topic.sponsored_posts.create!(title: RandomData.random_sentence, body: RandomData.random_paragraph, price: 6) }
ActiveRecord::UnknownAttributeError:
unknown attribute 'topic_id' for SponsoredPost.
3) SponsoredPostsController GET show assigns my_sponsored_post to @sponsored_post
Failure/Error: let (:my_sponsored_post) { my_topic.sponsored_posts.create!(title: RandomData.random_sentence, body: RandomData.random_paragraph, price: 6) }
ActiveRecord::UnknownAttributeError:
unknown attribute 'topic_id' for SponsoredPost.
这是我运行模型的规格时的输出：
1) SponsoredPost should belong to topic
Failure/Error: it { should belong_to(:topic) }
Expected SponsoredPost to have a belongs_to association called topic (SponsoredPost does not have a topic_id foreign key.)
# ./spec/models/sponsored_post_spec.rb:9:in `block (2 levels) in <top (required)>'
2) SponsoredPost attributes should respond to title
Failure/Error: expect(sponsored_posts).to respond_to(:title)
NameError:
undefined local variable or method `sponsored_posts' for #<RSpec::ExampleGroups::SponsoredPost::Attributes:0x007f992170a460>
# ./spec/models/sponsored_post_spec.rb:14:in `block (3 levels) in <top (required)>'
3) SponsoredPost attributes should respond to body
Failure/Error: expect(sponsored_posts).to respond_to(:body)
NameError:
undefined local variable or method `sponsored_posts' for #<RSpec::ExampleGroups::SponsoredPost::Attributes:0x007f9921701388>
# ./spec/models/sponsored_post_spec.rb:19:in `block (3 levels) in <top (required)>'
4) SponsoredPost attributes should respond to price
Failure/Error: expect(sponsored_posts).to respond_to(:price)
NameError:
undefined local variable or method `sponsored_posts' for #<RSpec::ExampleGroups::SponsoredPost::Attributes:0x007f99216f9ac0>
# ./spec/models/sponsored_post_spec.rb:23:in `block (3 levels) in <top (required)>'
最佳答案
在这里我可以为您建议什么：
控制器内有错字，应该为SponsoredPost而不是Sponsored_post
在您的控制器测试中，未定义变量sponsored_posts，也许是：
SponsoredPost.create！（标题：RandomData.random_sentence，正文：RandomData.random_paragraph，价格：6，主题：my_topic）
在模型测试中，它似乎是同样的问题。