Rails的功能测试利用需要的儿童

Question

试图让这个功能测试通过：

test "should create question" do 
    assert_difference('Question.count') do 
    post :create, :question => @question.attributes 
    end 
end 

但@question有需要特定的孩子验证是存在明确的一个课题：

class Question < ActiveRecord::Base 
    has_many :topic_questions 
    has_many :topics, :through => :topic_questions 

    validate :has_topic 

    def has_topic 
     (errors[:base] << "You must have one topic") if (topics.count < 1) 
    end 
    end 

会如何我1）在测试中为@question构建主题，然后2）将它传递给post方法，因为它不会被.attributes（）函数传递？

Answer 1

 
test "should create question" do 
    assert_difference('Question.count') do 
    @question.topics<<Topic.new(**set topics required and attribute here) 
#or try this line of code 
    @question[:topics]={:name=>"bla bla" ** set attribute here what u need} 
    post :create, :question => @question.attributes 
    end 
end 

Answer 2

测试没问题，它是需要更改的控制器和/或模型。你没有表现出create行动的内容，但基本上有两种方法可以做到这一点：

@question = Question.new(params[:question]) 
@question.build_topic(<some_params>) 
if @question.save 
    # ... etc ... 

或者，在Question模型中使用accepts_nested_attributes_for :topic，然后通过在params哈希表的主题参数。哪种方法最好取决于您的具体情况。