Question

我的两个测试中出现此错误：

test "should create question" do
  assert_difference('Question.count') do
    post :create, question: { question: 'apple', answer: "good", holder_id: 2}
  end
end

test "should not create question" do
  invalid_answer = "a" * 145 
  assert_difference('Question.count',0) do
    post :create, question: { answer: invalid_answer }
  end
  assert_template 'new'
end

我的创建动作

#create action
def create
  @question = Question.new(params[:question])
  @holder = Holder.find_by_id(@question.holder.id)
  if @question.save
    flash[:success] = "Question Saved"
      redirect_to holder_path(@question.holder_id)
    else
        render 'new'
    end
end

堆栈跟踪显示它两次都在创建行上。但是，为什么我会收到Called id for nil, which would mistakenly be 4 -- if you really wanted the id of nil, use object_id错误？

我是否需要先创建一个对象，然后将其传递给post create？

Answer 1

  @question = Question.new(params[:question])
  @holder   = Holder.find_by_id(@question.holder.id)

是的，你是对的，你需要在运行这个测试之前创建Holder实例。

但为什么要创建所有的ivars，你需要新的吗？

如果不是，似乎代码可以干涸

def create
  question = Question.new(params[:question])
  if question.save
    flash[:success] = "Question Saved"
      redirect_to holder_path(question.holder) # but some checks are in order here, no?
    else
        render 'new'
    end
end

HTH 罗伯特

被称为nil的id，在控制器测试中会错误地为4

1 个答案: