Rspec的重定向到測試

Question

在我的控制器當用戶創建一個新的職位，他/她將被重定向到包含新創建的職位的頁面。我想在rspec中創建一個測試來覆蓋此重定向，但是遇到問題。具體來說，我想知道在refirst_to參數中寫什麼。這裏是下面的控制代碼..

def create 
@micropost = Micropost.new(params[:micropost]) 
respond_to do |format| 
    if @micropost.save 
    format.html {redirect_to @micropost} 
    else 
    format.html {render action: 'edit'} 
    end 
end 
end 

這裏是RSpec的測試...

before do 
    @params = FactoryGirl.build(:micropost) 
end 

it "redirects to index" do 
    #clearly @params.id doesn't work. its telling me instead of a redirect im getting a 
    #200 
    #response.should redirect_to(@params.id) 
end 

Answer 1

假設@params將創建一個有效的微柱（否則.save會失敗，你就可以渲染：編輯）...

it "redirects to index on successful save" do 
    post :create, :micropost => @params.attributes 
    response.should be_redirect 
    response.should redirect_to(assigns[:micropost]) 
end 

it "renders :edit on failed save" do 
    post :create, :micropost => {} 
    response.should render ... # i don't recall the exact syntax... 
end