水豚，通过ID和类检查HTML元素 [英] Capybara, checking HTML element by ID and Class

查看：89 发布时间：2020/9/29 5:27:55 capybara

本文介绍了水豚，通过ID和类检查HTML元素的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

一个初学者的两个问题。

Two questions from a beginner.

Q1-是否可以通过ID和类来断言HTML节点的存在？
例如，查看是否存在以下元素：

Q1- Is it possible to assert the existence of an HTML node by ID and class? For example, to see if the following element exists:

<div class="drawer" id="first"....>

我见过您可以使用类似的东西：

I've seen you can use something like:

 page.should have_css('div.drawer')
 page.should have_css('div#first')

但是我们能否以某种方式查询两个参数的存在，我尝试了以下操作但没有起作用：

but can we somehow query for the existence of both parameters, I've tried the following and didn't work:

page.should have_selector("div", :class => "drawer", :id => "first")

Q2-是否可以在内部水豚方法中添加2个选择器，即，我看到您可以限制范围通过这样做：

Q2- Is it possible to add 2 selectors to the 'within' capybara method, ie, I've seen you can limit the scope by doing:

within("//div[@id='first']") do

但是我们可以通过添加id ='first'和class ='drawer'来过滤DIV吗？

but can we filter that DIV by adding id='first' and class='drawer' somehow?

非常感谢！

您可以组合选择器。

对于第一个问题，以下检查ID为 first且类为 drawer的div：

For your first question, the following checks for a div with id "first" and class "drawer":

page.should have_css('div#first.drawer')

对于第二个问题， within 块可以使用与上面相同的css-selector：

For your second question, the within block can use the same css-selector as above:

within('div#first.drawer') do

或者，如果您真的喜欢xpath，则可以：

Or if you really prefer xpath, you can do:

within("//div[@id='first' and @class='drawer']") do

A good reference for css-selectors: http://www.w3.org/TR/CSS2/selector.html

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