FactoryGirl沒有創建獨特的對象

Question

我有一個失敗的測試，根據我的理解，它應該使用Faker gem創建具有唯一值的對象。我真的被困在這裏。謝謝您的幫助！

從user_spec.rb失敗測試：

describe "post associations" do 
    before { @user.save } 
    let!(:older_post) do 
    older_post = FactoryGirl.create(:post, user: @user, created_at: 1.day.ago) 
    older_post.add_tags!([Faker::Lorem.words(1), Faker::Lorem.words(1), Faker::Lorem.words(1)]) 
    end 
    let!(:newer_post) do 
    newer_post = FactoryGirl.create(:post, user: @user, created_at: 1.hour.ago) 
    newer_post.add_tags!([Faker::Lorem.words(1), Faker::Lorem.words(1), Faker::Lorem.words(1)]) 
    end 

    it "should have the right posts in the right order" do 
    @user.posts.should == [newer_post, older_post] 
    end 
end 

後廠：

factory :post do 
    title  Faker::Lorem.sentence(Random.rand(1..5)) 
    content  Faker::Lorem.paragraphs(3) 
    shared_url Faker::Internet.url 
    public_post true 
    user 
end 

Rspec的結果：

1) User post associations should have the right posts in the right order 
Failure/Error: @user.posts.should == [newer_post, older_post] 
    expected: [true, true] 
     got: [#<Post id: 2, title: "Sapiente dignissimos qui et a.", content: "---\n- Quis necessitatibus eligendi sunt distinctio ...", shared_url: "http://blanda.biz/xander.cormier", public_post: true, created_at: "2013-06-28 15:31:00", updated_at: "2013-06-28 16:31:00", user_id: 1>, #<Post id: 1, title: "Sapiente dignissimos qui et a.", content: "---\n- Quis necessitatibus eligendi sunt distinctio ...", shared_url: "http://blanda.biz/xander.cormier", public_post: true, created_at: "2013-06-27 16:31:00", updated_at: "2013-06-28 16:31:00", user_id: 1>] (using ==) 
    Diff: 
    @@ -1,2 +1,3 @@ 
    -[true, true] 
    +[#<Post id: 2, title: "Sapiente dignissimos qui et a.", content: "---\n- Quis necessitatibus eligendi sunt distinctio ...", shared_url: "http://blanda.biz/xander.cormier", public_post: true, created_at: "2013-06-28 15:31:00", updated_at: "2013-06-28 16:31:00", user_id: 1>, 
    + #<Post id: 1, title: "Sapiente dignissimos qui et a.", content: "---\n- Quis necessitatibus eligendi sunt distinctio ...", shared_url: "http://blanda.biz/xander.cormier", public_post: true, created_at: "2013-06-27 16:31:00", updated_at: "2013-06-28 16:31:00", user_id: 1>] 

# ./spec/models/user_spec.rb:94:in `block (3 levels) in <top (required)>' 

Answer 1

在每個:let!塊，評估的最後一行是add_tags!方法，該方法似乎正在返回true標籤被添加到的帖子。正因爲如此，在您的規格[newer_post, older_post]實際上等於[true, true]而不是您的實際職位。

在每個:let!塊的結束，返回後：

let!(:older_post) do 
    older_post = FactoryGirl.create(:post, user: @user, created_at: 1.day.ago) 
    older_post.add_tags!([Faker::Lorem.words(1), Faker::Lorem.words(1), Faker::Lorem.words(1)]) 
    older_post 
end 

let!(:newer_post) do 
    newer_post = FactoryGirl.create(:post, user: @user, created_at: 1.hour.ago) 
    newer_post.add_tags!([Faker::Lorem.words(1), Faker::Lorem.words(1), Faker::Lorem.words(1)]) 
    newer_post 
end 

或者，你可以改變你的add_tags!方法返回崗位，而不是true/false。