如何避免Page Object中的Composite Class name错误? [英] How to avoid Compound Class name error in Page Object?

问题描述

当我尝试使用在页面对象中具有空格class = "country name"的类名时，我得到了:

When I try to use the class name that having space class = "country name" in page object, I'm getting:

Compound class names not permitted Selenium::WebDriver::Error::UnknownError)

如何使用具有空格的类名.

How can I use the class name that having space.

例如:

class = "country name"

推荐答案

请改用CSS选择器:

.country.name

要注意的重要一点是，此示例是错误的！如果"country name"是国家的名称，那就是.类名中不能包含空格.实际上，class属性是用空格分隔的类列表.这意味着如果您有一个类country name，它不是一个类，而是元素属于的两个不同类-第一个是country，第二个是name！

The important thing to note is that this example is wrong! If "country name" is meant as a name of a country, that is. Class names can't have spaces in them. In fact, the class attribute is a space-separated list of classes. That means that if you have a class country name, it's not one class, it's two different classes your element belongs to - the first is country, the second is name!

因此，如果错误，请修复您的课程.如果不是，请使用CSS选择器，这是匹配多个类的唯一可靠方法(除了非常长且复杂的XPath表达式).不要在琐碎的XPath表达式或CSS选择器中使用朴素的属性比较(//*[@class='country name']或*[class='country name'])，这是完全错误的.

Therefore, fix your classes, if they're wrong. If they're not, use a CSS selector, it's the only reliable way to match multiple classes (apart from a very long and complicated XPath expression). Don't use trivial XPath expressions or CSS selectors with naive attribute comparison (//*[@class='country name'] or *[class='country name']), that's just plain wrong.

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