设计视图规格

我习惯于编写视图规范,至少检查以下内容:

expect(view).to receive(:title).with('Required page title here')

( title 是我编写的用于设置页面标题的助手方法。)现在,我正试图为我的设计视图编写规范,看起来像:

- title 'Lost Password'
.row
  .col-lg-6
    = form_for resource, as: resource_name, url: password_path(resource_name) do |f|
      = render 'layouts/errors', object: resource
      .form-group
        = f.label :email
        = f.text_field :email, class: 'form-control', autofocus: true
      = f.submit 'Send me the instructions', class: 'btn btn-primary'
    %hr
    = render 'devise/shared/links'
  .col-lg-6
    = render 'devise/shared/advantages'

resource 和 resource_name 由设计定义。

如果在视图上运行以下规范:

require 'rails_helper'
describe 'devise/passwords/new', type: :view do
  it 'sets the page title' do
    expect(view).to receive(:title).with('Lost Password')
    render
  end
end

上面写着: undefined local variable or method 'resource' . 我试过:

allow(view).to receive(:resource).and_return(User.new)

但后来我 [snip, long class definition] does not implement: resource .

我该怎么做?我不想把水豚用于像这样琐碎的事情。