Question

I’m running a rspec test to make sure that two models are associated between each other with has_many and belongs_to. Here is my test below.

describe "testing for has many links" do
  before do
    @post = Post.new(day: "Day 1", content: "Test")
    @link = Link.new(post_id: @post.id, title: "google", url: "google.com")
  end

  it "in the post model" do
    @post.links.first.url.should == "google.com"
  end
end

The test is telling me that url is an undefined method. What’s wrong with my test? Or did I just miss something basic.

The model file for Post

has_many :links

The model file for Link

belongs_to :post

On top of that, the link model has the attribute post_id

Answer 1

You need to save both models to validate this relationship, also, you can use shoulda gem.

The code looks like:

describe Link do
  it { should belong_to(:post) }
end

---

describe Post do
  it { should have_many(:links) }
end