如何测试此==> rspec + rails

Question

我们都知道在任何基本控制器的create动作中都有此代码

def create
    if @product.save
      flash[:notice] = 'Product was successfully created.' 
      redirect_to(products_path)
    else
      flash[:notice] = "Data not saved try again"
      render :action => "new"
    end
end

我们如何使用rspec测试这部分代码

任何建议都是最欢迎的。

PS：我对rspec天真，所以请介意我问这个问题，如果答案很简单:)

Answer 1

非凡的Rails gem为rspec添加了一些匹配器，可用于测试通知，重定向和＆c。 这个（未经测试的）product_controller_spec.rb显示了如何使用非凡的_rails匹配器来测试您的代码片段：

describe ProductController do

  describe "create" do

    before(:each) do
      @product = products(:window_cleaner)
    end

    it "should create a product" do
      @product.should_receive(:save).and_return(true)
      post :create
      should set_the_flash :notice,
                           :to => 'Production was successfully created.'
      should redirect_to products_path
    end

    it "should handle failure to create a product" do
      @product.should_receive(:save).and_return(false)
      post :create
      should set_the_flash :notice, :to => 'Data not saved try again.'
      should render_template :action => 'new'
    end

  end

end

出色的轨道提供了上面使用的render_template，set_the_flash和redirect_to匹配器。