在Rspec上加載文件錯誤

Question

我跟着一個關於使用Rspec進行測試的教程。嘗試運行測試時出現語法錯誤。這裏是我的測試代碼：

require 'rails_helper' 

RSpec.describe CommentsController, type: :controller do 
    describe "comments#create action" do 
    it "should allow admins to create comments on posts" do 

     post = FactoryGirl.create(:post) 

     admin = FactoryGirl.create(:admin) 
     sign_in admin 

     post :create, params: { post_id: post.id, comment: { message: 'awesome post' } } 

     expect(response).to redirect_to root_path 
     expect(post.comments.length).to eq 1 
     expect(post.comments.first.message).to eq "awesome gram" 

    end 

    it "should require an admin to be logged in to comment on a post" do 
     post = FactoryGirl.create(:post) 
     post :create, params: { post_id: post.id, comment: { message: 'awesome post' } } 
     expect(response).to redirect_to new_admin_session_path 
    end 

    it "should return http status code of not found if the post isn't found" do 
     admin = FactoryGirl.create(:admin) 
     sign_in admin 
     post :create, params: { post_id: 'SUNSHINE', comment: { message: 'awesome post'} } 
     expect(response).to have_http_status :not_found 
    end 
    end 
end 

這裏的控制器：

class CommentsController < ApplicationController 
    before_action :authenticate_admin!, only: [:create] 

    def create 
     @post = Post.find_by_id(params[:post_id]) 
     return render_not_found if @post.blank? 

     @post.comments.create(comment_params.merge(admin: current_admin)) 
     redirect_to root_path 
    end 

    private 

    def render_not_found(status=:not_found) 
     render plain: "#{status.to_s.titleize} :(", status: status 
    end 

    def comment_params 
     params.require(:comment).permit(:message) 
    end 
end 

這裏的運行測試時，端子輸出：

Terminal output

有什麼奇怪的是，當我發表意見線那些正在產生錯誤的測試，測試在最後一次測試通過時按預期運行。我已經檢查了測試文件以及描述相同問題的類似帖子，它在語法上是正確的。 Rails新手如此赦免菜鳥的錯誤。

Answer 1

的問題是，你有一個名爲post變量：

post = FactoryGirl.create(:post) # define `post` variable 
post :create, params: ...   # try to call `post` method 

因此，在隨後的行post將參考變量，而不是post方法。

解決方案1：重命名變量

my_post = FactoryGirl.create(:post) 
post :create, params: { post_id: my_post.id, ... } 

解決方案2：使用self.post訪問irb方法

post = FactoryGirl.create(:post) 
self.post :create, params: { post_id: post.id, ... } 

---

複製問題：

def foo 
    "bar" 
end 

foo = "wat" 
#=> "wat" 

foo :hello 
# SyntaxError: (irb):63: syntax error, unexpected ':', expecting end-of-input 
# foo :hello 
# ^

Answer 2

我認爲這與你定義一個名爲post然後試圖調用Rspec方法post變量做：

it "should require an admin to be logged in to comment on a post" do 
    post = FactoryGirl.create(:post) 
    post :create, params: { post_id: post.id, comment: { message: 'awesome post' } } 
    expect(response).to redirect_to new_admin_session_path 
end 

嘗試重新將其命名爲： 調用Rspec方法post：

it "should require an admin to be logged in to comment on a post" do 
    message = FactoryGirl.create(:post) 
    post :create, params: { post_id: message.id, comment: { message: 'awesome post' } } 
    expect(response).to redirect_to new_admin_session_path 
end