如何检查元素是否包含特定的类属性 [英] How to check if element contains specific class attribute

问题描述

如何检查selenium web元素是否包含特定的css类。

How can I check if a selenium web element contains a specific css class.

我有这个html li元素

I have this html li element

<li class="list-group-item ng-scope active" ng-repeat="report in lineageController.reports" ng-click="lineageController.activate(report)" ng-class="{active : lineageController.active == report}">

正如你在class属性中看到的那样，有一个活跃的类。

As you can see inside class attribute there is an active class.

我的问题是我有这个元素，我想根据类属性是否具有其他活动值进行检查，然后使用xpath更优雅的解决方案。

My problem is that I have this element and I want to do a check based on if the class attribute has that "active" value among the others, being more elegant solution then using xpath.

我该怎么做？

推荐答案

鉴于您已找到您的元素，并且您想检查class-attribute中的某个类：

Given you already found your element AND you want to check for a certain class inside the class-attribute:

public boolean hasClass(WebElement element) {
    String classes = element.getAttribute("class");
    for (String c : classes.split(" ")) {
        if (c.equals(theClassYouAreSearching)) {
            return true;
        }
    }

    return false;
}

编辑

正如@aurelius正确指出的那样，有一种更简单的方法（效果不佳）：

EDIT

As @aurelius rightly pointed out, there is an even simpler way (that doesn't work very well):

public boolean elementHasClass(WebElement element, String active) {
    return element.getAttribute("class").contains(active);
}

这种方法看起来更简单，但有一个很大的警告：

This approach looks simpler but has one big caveat:

正如@JuanMendes所指出的，如果您要搜索的类名是其他类名的子字符串，则会遇到问题：

As pointed out by @JuanMendes you will run into problems if the class-name you're searching for is a substring of other class-names:

例如class =test-a test-b，搜索class.contains（test）将返回true但它应该为false

for example class="test-a test-b", searching for class.contains("test") will return true but it should be false

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