Selenium中ExpectedConditions.elementToBeSelected和elementSelectionStateToBe之间的区别

Question

Selenium中ExpectedConditions.elementToBeSelected和elementSelectionStateToBe之间的区别是什么？如何使用它？你能举个例子吗？

Answer 1

ElementToBeSelected

public static ExpectedCondition<java.lang.Boolean> elementToBeSelected(WebElement element) 

ElementSelectionStateToBe

public static ExpectedCondition<java.lang.Boolean> elementSelectionStateToBe(WebElement element, boolean selected) 

你可以从方法签名elementSelectionStateToBe看到接收boolean作为参数。您可以通过传递参数来检查元素是否被选中，而您需要捕获异常以检查元素是否在elementToBeSelected中未被选中。

要检查是否元素被选中

// waits for the element to be selected 
wait.until(ExpectedCondition.elementSelectionStateToBe(element, true)); 

// waits for the element to be selected 
wait.until(ExpectedCondition.elementToBeSelected(element)); 

要检查是否元素没有选择

// waits for the element **not** to be selected 
wait.until(ExpectedCondition.elementSelectionStateToBe(element, false)); 

try { 
    // waits for the element to be selected 
    wait.until(ExpectedCondition.elementToBeSelected(element)); 
} 
catch (TimeOutException) 
{ 
    // the element is not selected 
}