Shoulda和RSpec之前

Question

在測試模型字段的有效性之前，我嘗試在主題中設置實例變量。我需要設置此變量，因爲驗證是有條件的（僅用於某些類型的用戶）。所以，我有這樣的事情：

context "as a user" do 

    before(:each) do 
     subject = Organization.new 
     subject.editor = "user" 
    end 

    it { subject.should validate_presence_of :name } 

    end 

但預期它不工作：

Failure/Error: it { subject.should validate_presence_of :description } 
RuntimeError: 
    Organization#editor attr is not set 

我錯過了什麼？

Answer 1

subject你之前的塊是局部變量。它看起來像你打算使用an explicit subject：

context "as a user" do 
    subject { Organization.new } 

    before(:each) do 
    subject.editor = "user" 
    end 

    # usually, you don't explicitly name the subject in an `it` like this 
    it { should validate_presence_of :name } 

end