Rspec的ActiveRecord的:: AssociationTypeMismatch

Question

我試着寫一個評論控制器的POST操作測試，但不斷收到此錯誤：

Failure/Error: @comment = @outlet.comments.build(comment_params) 

    ActiveRecord::AssociationTypeMismatch: 
     Outlet(#70273695598160) expected, got String(#70273689026640) 

我試圖改變周圍的一些事情在試驗，但不斷收到同樣的錯誤。不知道什麼嘗試

這裏是我的測試：

describe 'create' do 
     context 'with valid attributes' do 
      before :each do 
       @outlet = FactoryGirl.create(:outlet) 
       @outlet_id = @outlet.id 
       @user = FactoryGirl.create(:user) 
       @user_id = @user.id 
       @comment_params = { body: "This is a comment", outlet: @outlet_id, user: @user_id } 
      end 

      let(:create) { post :create, params: { outlet_id: @outlet_id, user_id: @user_id, comment: @comment_params } } 

      it "creates new comment" do 
       puts @outlet.class 
       puts @user.class 
       expect { create }.to change { Comment.count }.by 1 
      end 
     end 
    end 

這裏是我的意見控制器：

class CommentsController < ApplicationController 

    def new 
     @comment = Comment.new 
    end 

    def create 
     @outlet = Outlet.find(params[:outlet_id]) 
     @user = User.find(params[:user_id]) 
     @comment = @outlet.comments.build(comment_params) 

     if @comment.save! 
      redirect_to(@outlet) 
     end 
    end 


    private 
    def comment_params 
     params.require(:comment).permit(:body, :outlet, :user) 
    end 
end 

Answer 1

您傳遞用戶和出口IDS，但你將它們命名爲剛outlet和user中的參數。

測試更改爲：

describe 'create' do 
    context 'with valid attributes' do 
    let(outlet) { FactoryGirl.create(:outlet) } 
    let(:user) { FactoryGirl.create(:user) } 

    let(:create) do 
     post :create, 
     params: { 
      comment: { body: 'Comment Test', user_id: user.id, outlet_id: outlet.id } 
     }   
    end 

    it "creates new comment" do 
     expect { create }.to change { Comment.count }.by(1) 
    end 
    end 
end 

，改變你的控制器：

def create 
    @comment = Comments.new(comment_params) 

    if @comment.save! 
    redirect_to(comment.outlet) 
    end 
end 


private 
def comment_params 
    params.require(:comment).permit(:body, :outlet_id, :user_id) 
end