ruby-on-rails - RSpec 查看测试和 content_for :title

Question

我正在尝试测试 application/layout.html.erb 的 title 标签:

<title><%= content_for?(:title) ? yield(:title) : "Foo Bar" %></title>

但我找不到设置 title 变量的方法:

it "should show a title" do
  # NameError: `title' is not allowed as an instance variable name
  #view.instance_variable_set(:title, 'Test Title')

  # Deprecation error
  # view.stub(:title) { 'Test Title' }

  # Fail:
  # allow(view).to receive(:title) { 'Test Title' }
  # view.content_for(:title) { 'Test Title' }
  # assign(:title, 'Test Title')
  # helper.stub(:content_for).with(:title).and_return('Test Title')

  render

  expect(rendered).to have_title('Test Title')
end

我正在使用 Rails 4.1.4、rspec-rails 3.0.2、Capybara 2.4.1。有什么建议吗？

Answer 1

你可以这样做

 view.instance_variable_get("@view_flow").set(:title,"Test Title")
 render
 expect(rendered).to have_title('Test Title')