如何在Selenium WebDriver Java中使用JavaScript

Question

$ ./go webdriverjs

Answer 1

根据前面的问题，我想您希望从Java的WebDriver中运行JavaScript片段。如果我错了请指正。

WebDriverJS实际上“只是”另一种WebDriver语言绑定（您可以用Java、C#、Ruby、Python、JS甚至更多的语言编写测试）。特别是，它是JavaScript，因此允许您用JavaScript编写测试。

如果要在JavaWebDriver中运行JavaScript代码，请执行以下操作：

WebDriver driver = new AnyDriverYouWant();
if (driver instanceof JavascriptExecutor) {
    ((JavascriptExecutor)driver).executeScript("yourScript();");
} else {
    throw new IllegalStateException("This driver does not support JavaScript!");
}

WebDriver driver = new AnyDriverYouWant();
JavascriptExecutor js;
if (driver instanceof JavascriptExecutor) {
    js = (JavascriptExecutor)driver;
} // else throw...

// later on...
js.executeScript("return document.getElementById('someId');");

    // returns the right WebElement
    // it's the same as driver.findElement(By.id("someId"))
    js.executeScript("return document.getElementById('someId');");

 // draws a border around WebElement
 WebElement element = driver.findElement(By.anything("tada"));
 js.executeScript("arguments[0].style.border='3px solid red'", element);

 // changes all input elements on the page to radio buttons
 js.executeScript(
         "var inputs = document.getElementsByTagName('input');" +
         "for(var i = 0; i < inputs.length; i++) { " +
         "    inputs[i].type = 'radio';" +
         "}" );