我的 Rails 网站重定向在测试阶段失败，但在正常情况下似乎没问题

Question

这就是 Rails test:controllers 让我明白的。

Failure:
StoriesControllerTest#test_adds_a_story [test/controllers/stories_controller_test.rb:42]:
Expected response to be a redirect to <http://www.example.com/stories/980190962> but was a redirect to <http://www.example.com/stories/980190963>.
Expected "http://www.example.com/stories/980190962" to be === "http://www.example.com/stories/980190963".

它似乎将故事网址偏移了一个

这是失败的具体测试：

assert_redirected_to story_url(@story) 

我尝试更改测试应该说的内容，但这会导致错误或失败。

这是失败的测试：

  test "adds a story" do
  assert_difference "Story.count" do
    post stories_path, params: {
      story: {
        name: 'test story',
        link: 'http://www.test.com/'
      }
    }
  end
  assert_redirected_to story_url(@story)
  assert_not_nil flash[:notice]
  end

这是控制器操作

  def create
    @story = Story.new(story_params)

    respond_to do |format|
      if @story.save
        format.html { redirect_to story_url(@story), notice: "Story was successfully created." }
        format.json { render :show, status: :created, location: @story }
      else
        format.html { render :new, status: :unprocessable_entity }
        format.json { render json: @story.errors, status: :unprocessable_entity }
      end
    end
  end

Answer 1

正如您在评论中已经提到的，使用时

setup do 
  @story = stories(:one) 
end

然后由装置创建的

one

故事被分配给

@story

，而不是刚刚在测试期间创建的故事。

相反，我建议将您的测试更改为：

test "adds a story" do
  assert_difference "Story.count" do
    post stories_path, 
         params: { story: { name: 'test story', link: 'http://www.test.com/' } }
  end

  assert_redirected_to story_url(Story.last)
  assert_equal "Story was successfully created.", flash[:notice]
end