RSpec测试PUT更新动作

Question

我正在尝试编写一些RSpec测试来测试我的应用程序,但我偶然发现了一些我找不到任何解决方案的问题.1)我正在尝试测试更新操作.这是我的代码:

        it "email is a new one" do
            put :update, id: @user, user: FactoryGirl.attributes_for(:user, :email=>"a@b.c")
            @user.reload
            @user.email.should == "a@b.c"
            puts @user.email
        end

这是UsersController更新操作:

  def update
    @user = User.find(params[:id])
    respond_to do |format|
      if @user.update_attributes(params[:user])
        format.html { redirect_to edit_user_path(@user), :notice => "Your settings were successfully updated."}
        format.json { head :no_content }
      else
        format.html { render action: "edit" }
        format.json { render json: @user.errors, status: :unprocessable_entity }
      end
    end
  end

这是错误:

 Failure/Error: @user.email.should == "a@b.c"
       expected: "a@b.c"
            got: "user16@example.com" (using ==)

很明显,测试没有改变用户的电子邮件.我从这里获取了更新操作教程:http://everydayrails.com/2012/04/07/testing-series-rspec-controllers.html.哪里可以找到解决方案？

Answer 1

可能@user.update_attributes(params[:user])因验证原因而失败？

此外,您可以确保您的测试和控制器方法与同一个ruby对象进行交互.这对我来说过去很困难.我这样做的find方法是在类上存根方法.

it "email is a new one" do
  User.stubs(:find).returns(@user)
  put :update, id: @user, user: FactoryGirl.attributes_for(:user, :email=>"a@b.c")
  @user.reload
  @user.email.should == "a@b.c"
  puts @user.email
end

这可以确保您在测试期间不仅讨论相同的记录,而且讨论相同的对象.

最后,我认为你的测试对你来说非常重要.你基本上是测试update_attributes,这是一个核心功能,并已经过全面测试.我将专注于测试控制器行为.像这样的东西:

let(:user) { FactoryGirl.create(:user) }

describe "PUT #update" do

  before(:each) {
    User.stubs(:find).returns(user)
  }

  it "should redirect to the user path on succesful save" do
    user.should_receive(:update_attributes).and_return true
    put :update, user, {}
    response.should redirect_to(edit_user_path(user))
  end

  it "should render the edit screen again with errors if the model doesn't save" do
    user.should_receive(:update_attributes).and_return false
    put :update, user, {}
    response.should render_template("edit")
  end
end