Rails 3驗證問題（Rspec）

Question

完全被這個難住了。我發誓，這看起來應該工作，但它沒有。測試數據庫已更新（rake db：migrate - rake：db：test：clone）。我希望我做一些愚蠢的事情。

完全披露，我正在運行3.1 RC4。

型號

class ExerciseSet < ActiveRecord::Base 

    TYPES = %w[time rep] 

    validates :type, 
      :presence => true, 
      :inclusion => { :in => TYPES } 

end 

SPEC文件

require 'spec_helper' 

describe ExerciseSet do 

    before(:each) do 
    @attr = { :value => 12, 
       :value_max => 15, 
       :type => "timed", 
       :target => "range" 
    }    
    end 


    describe "type" do 
    it "must be either 'time' or 'rep'" do 
     values = %w[time rep] 
     values.each do |value| 
     exercise_instance = ExerciseSet.new(@attr.merge(:type => value)) 
     exercise_instance.should be_valid 
     end 
    end 
    end 

end 

輸出

Failures: 

    1) ExerciseSet type must be either 'time' or 'rep' 
    Failure/Error: exercise_instance.should be_valid 
     expected valid? to return true, got false 
    # ./spec/models/exercise_set_spec.rb:19:in `block (4 levels) in <top (required)>' 
    # ./spec/models/exercise_set_spec.rb:17:in `each' 
    # ./spec/models/exercise_set_spec.rb:17:in `block (3 levels) in <top (required)>' 

Answer 1

首先第一件事情 - 爲什麼不是實例有效嗎？我會加入一些調試規範：

describe "type" do 
    it "must be either 'time' or 'rep'" do 
    values = %w[time rep] 
    values.each do |value| 
     exercise_instance = ExerciseSet.new(@attr.merge(:type => value)) 
     exercise_instance.valid? # force errors 
     puts exercise_instance.errors.full_messages.join("\n") 
     exercise_instance.should be_valid 
    end 
    end 
end 

是的，這也許應該是一個評論，但我不能那麼容易提供規範重寫。