如何使用i18m將驗證消息中的屬性插入到rspec中

Question

雖然當我將%{attribute}傳遞給它時，測試失敗，但我有一些自定義錯誤消息的翻譯文件設置，用於某些ActiveRecord驗證。我如何獲得rspec測試來使用翻譯？

en.locale

en: 
    activerecord: 
    errors: 
     models: 
     account: 
      attributes: 
      name: 
       invalid: "%{attribute} must only include numbers and letters" 

RSpec的測試

it "is invalid with special characters" do 
    account = FactoryGirl.build(:account, name: "test_account_*name") 
    account.valid? 
    expect(account.errors[:name]).to include(I18n.t('activerecord.errors.models.account.attributes.name.invalid')) 
    end 

結果

20) Account is invalid with special characters 
Failure/Error: expect(account.errors[:name]).to include(I18n.t('activerecord.errors.models.account.attributes.name.invalid')) 
    expected ["Name must only include numbers and letters"] to include "%{attribute} must only include numbers and letters" 
# ./spec/models/account_spec.rb:29:in `block (2 levels) in <top (required)>' 

Answer 1

我找到了答案。我需要將該屬性的human_attribute_name作爲參數attribute傳遞給翻譯。

的測試通過這樣的：

it "is invalid with special characters" do 
    account = FactoryGirl.build(:account, name: "test_account_*namre") 
    account.valid? 
    expect(account.errors[:name]).to include(I18n.t('activerecord.errors.models.account.attributes.name.invalid', attribute: Account.human_attribute_name(:name))) 
    end