问题

我在网页上有一个动态查找Salesforce组件。

<input lightning-basecombobox_basecombobox="" id="input-19" type="text" role="textbox" autocomplete="off" placeholder="Search undefined..." maxlength="255" aria-autocomplete="list" required="" class="slds-input slds-combobox__input" aria-controls="dropdown-element-19" data-position-id="lgcp-1000001" aria-describedby="help-message-18">

当我输入前3个字母后，选项会动态显示，然后我必须选择一个选项。这是选择后组件的HTML代码：

<input lightning-basecombobox_basecombobox="" id="input-19" type="text" role="textbox" autocomplete="off" placeholder="Bandra West Branch" maxlength="255" required="" class="slds-input slds-combobox__input slds-combobox__input-value" aria-controls="dropdown-element-19" data-position-id="lgcp-1000007" aria-describedby="help-message-18" readonly="">

以下是我用于选择值的Selenium-Java代码：

wait.until(ExpectedConditions.visibilityOf(newLoanObj.txtBranch()));		
newLoanObj.txtBranch().sendKeys(data.get("Branch"));
Thread.sleep(2500);
newLoanObj.txtBranch().sendKeys(Keys.ARROW_DOWN);
newLoanObj.txtBranch().sendKeys(Keys.ENTER);

现在的问题是动态生成的选项需要时间来填充，我无法获取发送键值后显示的选项的定位符。因此，在这种情况下，我不能等待选项出现。所以我被迫在这种情况下使用Thread.sleep。因此，如果选项在指定的时间内没有填充，我的脚本有时会失败。那么，有没有办法避免使用Thread.sleep，仍然等待选项在发送键后填充并继续执行脚本而不会失败？

<input lightning-basecombobox_basecombobox="" id="input-19" type="text" role="textbox" autocomplete="off" placeholder="Search undefined..." maxlength="255" aria-autocomplete="list" required="" class="slds-input slds-combobox__input" aria-controls="dropdown-element-19" data-position-id="lgcp-1000001" aria-describedby="help-message-18">

<input lightning-basecombobox_basecombobox="" id="input-19" type="text" role="textbox" autocomplete="off" placeholder="Bandra West Branch" maxlength="255" required="" class="slds-input slds-combobox__input slds-combobox__input-value" aria-controls="dropdown-element-19" data-position-id="lgcp-1000007" aria-describedby="help-message-18" readonly="">

	wait.until(ExpectedConditions.visibilityOf(newLoanObj.txtBranch()));		
	newLoanObj.txtBranch().sendKeys(data.get("Branch"));
	Thread.sleep(2500);
	newLoanObj.txtBranch().sendKeys(Keys.ARROW_DOWN);
	newLoanObj.txtBranch().sendKeys(Keys.ENTER);

答案1

得分: 1

以下是翻译好的部分：

(summarised from the comments on the question)

Without seeing the html, the following is an approach that works:
(good job @Huzefa)

在不看HTML的情况下，以下是一个有效的方法：
（做得好 @Huzefa）

```plaintext
String strDynamicXPath = "//*[contains(text(),'" + data.get("Branch") + "')]"; wait.until(ExpectedConditions.elementToBeClickable(By.xpath(strDynamicXPath)));
newLoanObj.txtBranch().sendKeys(Keys.ARROW_DOWN); 
newLoanObj.txtBranch().sendKeys(Keys.ENTER); 

字符串strDynamicXPath会查找包含所需文本的任何相对元素，然后使用[1]返回第一个实例。它的范围很广，可能需要更准确一些，但如果它能工作，那就是一个选择。

值得一提的是，@Huzefa尝试在没有使用键的情况下访问对象，但这是不成功的。已更新答案，删除了一个替代代码块，因为它不起作用。

还值得考虑的是测试方法：（稍微更新了一下）

> 考虑不要从下拉列表中选择 - 直接输入所需的完整值。
> 在不了解您的应用程序配置的情况下，我会假设查找值和选择是供应商测试过的开箱即用（OOTB）功能，除非您对其进行了定制，否则没有测试它的价值。
> 虽然您可能是最终用户，但这并不是这个测试的目的；如果必须测试查找功能，那么创建一个专门的测试用例，然后如果需要等待10秒，那也无所谓，因为这只是一次性活动。我建议您考虑简化流程，直接输入完整值。

<details>
<summary>英文:</summary>

(summarised from the comments on the question)

Without seeing the html, the following is an approach that works:
(good job @Huzefa)

String strDynamicXPath = "//*[contains(text(),'" + data.get("Branch") + "')]"; wait.until(ExpectedConditions.elementToBeClickable(By.xpath(strDynamicXPath)));
newLoanObj.txtBranch().sendKeys(Keys.ARROW_DOWN);
newLoanObj.txtBranch().sendKeys(Keys.ENTER);

The xpath finds any relative element with `//*` that contains the required text and returns the first instance of it with `[1]`. It's wide sweeping and could do with being more accurate but if it works then it's an option.


It's worth a note that @Huzefa tried to access the object without the keys, but this was unsuccessful. Updated the answer to remove an alternative code block as it didn't work.


----------


Also worth consideration here is the testing approach.: (updated a little it)

> Consider not selecting from the drop down - type in the full value that
> is required. Without knowing your application configuration I would
> assume that lookup value and select is Out-Of-The-Box (OOTB) functionality tested by
> the vendor, unless you've customised it there's no value in testing
> it. While you're (probably) testing as the end user, this isn't the
> purpose of *this* test; If you must test the lookup functionality,
> create a specific test for it then if it has a 10 seconds wait it doesn't
> matter as it's only a one-off activity. I would suggest you think about cutting the
> corner, type the full value

</details>



# 答案2
**得分**: 0

请使用显式等待来完成这个操作。在Selenium 4中的代码如下所示：

```java
WebDriverWait wait = new WebDriverWait(driver, Duration.ofSeconds(20));
wait.until(ExpectedConditions.visibilityOfElementLocated(By.xpath(".....")));
    
// 使用该元素

只翻译了代码部分，不包括注释。

WebDriverWait wait = new WebDriverWait(driver,Duration.ofSeconds(20));
wait.until(ExpectedConditions.visibilityOfElementLocatedBy(By.xpath(".....");

// use the element