RSpec 2查看测试以验证可访问标记？ [英] RSpec 2 View test to validate accessible markup?

问题描述

我想在RSpec中进行一些基本的可访问性测试（显然，稍后将由其他工具和用户进行验证；这是为了抓住低挂的果实，例如查找不带alt标签的图像等）

I want to make some basic accessibility tests in RSpec (obviously, to be further validated by other tools and users later; this is to catch the low-hanging fruit like finding images w/o alt tags and such)

大多数示例只是检查内容是否相似；我想要做的是获取一个标签列表，然后断言所找到的所有标签都符合特定条件（例如，所有图像必须具有alt或longdesc；每个表单输入都需要标签或标题，等等）。

Most of the examples have just checking content is present is similar; what I want to do is get a list of tags, and then make assertions that "all" the tags found meet certain criteria (e.g. all images have to have either an alt or a longdesc; each form input needs either a label or title, etc).

RSpec可以做到这一点吗？如果没有，是否可以使用一种工具？

Can RSpec do this, or if not, is there a tool that can?

谢谢。 p>

Thanks.

推荐答案

您可以使用 webrat 在您的视图规格上测试XPath选择器：

You can use webrat to test for XPath selectors on your view specs:

describe 'my/view.html.erb' do
  it 'should not have images without alt or longdesc attributes' do
    render
    rendered.should_not have_xpath('//img[not(@alt) and not(@longdesc)]')
  end
end

水豚也支持XPath选择器。

Capybara supports XPath selectors, too.

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