(Rails) update_attributes 在不使用密码的集成测试期间抛出错误（需要密码）

我正在编写一个 Rails 集成测试来检查用户的标题是否保存。标题有一个验证：它必须不超过 255 个字符。但是@user.update_attributes!(title: params[:title])抛出错误“密码必须至少有6个字符”。但是...我不会更新密码或标题以外的任何内容。那么如何通过自己的验证保存这个属性而不用担心密码呢？

测试：

  test "profile submits new title and description successfully" do
    log_in_as(@non_admin)
    get user_path(@non_admin)
    assert_nil @non_admin.title
    post "/users/#{@non_admin.id}/update_description",
         { title: "I am a man of constant sorrow." }
    user = assigns(:user)
    user.reload.title
    assert user.title == "I am a man of constant sorrow."
    assert_template 'users/show'
    assert flash[:success]
  end

控制器方法（未完成，但您会明白的）。请注意，这update_attributes!是引发密码验证错误的调用。

  # Handles user's posted title and description.
  def update_description
    @user = User.find(params[:id])
    # Check if title is present. If so, attempt to save, load flash, and reload.
    if @user.update_attributes!(title: params[:title])
      flash[:success] = "Saved title. "
    # if unable, set error flash and reload.
    else
      flash[:warning] = "Unable to save."
    end
    # Same logic as before, now for description.
    # Make sure two different [:success] flashes work! Probably not!
    redirect_to user_path(@user)
  end

验证：

  validates :password, length: { minimum: 6,
                                 message: "must have at least 6 characters" }
  validates :title, length: { maximum: 255 }

这是测试错误：

23:08:51 - INFO - Running: test/integration/users_show_test.rb
Started
ERROR["test_profile_submits_new_title_and_description_successfully", UsersShowTest, 2017-10-23 01:06:11 -0400]
 test_profile_submits_new_title_and_description_successfully#UsersShowTest (1508735171.57s)
ActiveRecord::RecordInvalid:         ActiveRecord::RecordInvalid: Validation failed: Password must have at least 6 characters
            app/controllers/users_controller.rb:71:in `update_description'
            test/integration/users_show_test.rb:22:in `block in <class:UsersShowTest>'
        app/controllers/users_controller.rb:71:in `update_description'
        test/integration/users_show_test.rb:22:in `block in <class:UsersShowTest>'

如果相关，这里是加载为@non_admin：

archer:
  name: Sterling Archer
  email: [email protected]
  password_digest: <%= User.digest('Jsdfuisd8f') %>
  activated: true
  activated_at: <%= Time.zone.now %>

我是一个 Rails 菜鸟，所以它可能是一些基本的东西。提前致谢...

更新：请参阅下面与 kasperite 的讨论。我只需要添加on: create到我的密码验证中。