JavaScript 警告框、提示框和确认框
WebDriver 提供了一个 API，用于处理 JavaScript 提供的三种类型的原生弹出消息。这些弹出窗口由浏览器设置样式，并且自定义选项有限。
警告框
其中最简单的一种称为警告框，它显示自定义消息和一个用于关闭警告框的按钮，在大多数浏览器中标记为“确定”。在大多数浏览器中也可以通过按关闭按钮关闭它，但这与“确定”按钮的作用相同。 查看示例警告框。
WebDriver 可以从弹出窗口获取文本，并接受或关闭这些警告框。
Alert alert = driver.switchTo().alert();
//Store the alert text in a variable and verify it
String text = alert.getText();
assertEquals(text, "Sample Alert");
//Press the OK button
alert.accept(); element = driver.find_element(By.LINK_TEXT, "See an example alert")
element.click()
wait = WebDriverWait(driver, timeout=2)
alert = wait.until(lambda d : d.switch_to.alert)
text = alert.text
alert.accept()//Click the link to activate the alert
driver.FindElement(By.LinkText("See an example alert")).Click();
//Wait for the alert to be displayed and store it in a variable
IAlert alert = wait.Until(ExpectedConditions.AlertIsPresent());
//Store the alert text in a variable
string text = alert.Text;
//Press the OK button
alert.Accept();
# Store the alert reference in a variable
alert = driver.switch_to.alert
# Get the text of the alert
alert.text
# Press on Cancel button
alert.dismiss let alert = await driver.switchTo().alert();
let alertText = await alert.getText();
await alert.accept();//Click the link to activate the alert
driver.findElement(By.linkText("See an example alert")).click()
//Wait for the alert to be displayed and store it in a variable
val alert = wait.until(ExpectedConditions.alertIsPresent())
//Store the alert text in a variable
val text = alert.getText()
//Press the OK button
alert.accept()
确认
确认框类似于警告框，但用户可以选择取消消息。查看示例确认框。
此示例还展示了存储警告框的不同方法
alert = driver.switchTo().alert();
//Store the alert text in a variable and verify it
text = alert.getText();
assertEquals(text, "Are you sure?");
//Press the Cancel button
alert.dismiss(); element = driver.find_element(By.LINK_TEXT, "See a sample confirm")
driver.execute_script("arguments[0].click();", element)
wait = WebDriverWait(driver, timeout=2)
alert = wait.until(lambda d : d.switch_to.alert)
text = alert.text
alert.dismiss()//Click the link to activate the alert
driver.FindElement(By.LinkText("See a sample confirm")).Click();
//Wait for the alert to be displayed
wait.Until(ExpectedConditions.AlertIsPresent());
//Store the alert in a variable
IAlert alert = driver.SwitchTo().Alert();
//Store the alert in a variable for reuse
string text = alert.Text;
//Press the Cancel button
alert.Dismiss();
# Store the alert reference in a variable
alert = driver.switch_to.alert
# Get the text of the alert
alert.text
# Press on Cancel button
alert.dismiss let alert = await driver.switchTo().alert();
let alertText = await alert.getText();
await alert.dismiss();//Click the link to activate the alert
driver.findElement(By.linkText("See a sample confirm")).click()
//Wait for the alert to be displayed
wait.until(ExpectedConditions.alertIsPresent())
//Store the alert in a variable
val alert = driver.switchTo().alert()
//Store the alert in a variable for reuse
val text = alert.text
//Press the Cancel button
alert.dismiss()
提示
提示框类似于确认框，但它们还包含一个文本输入框。与使用表单元素类似，您可以使用 WebDriver 的 send keys 来填写响应。这将完全替换占位符文本。按取消按钮将不会提交任何文本。查看示例提示框。
alert = driver.switchTo().alert();
//Store the alert text in a variable and verify it
text = alert.getText();
assertEquals(text, "What is your name?");
//Type your message
alert.sendKeys("Selenium");
//Press the OK button
alert.accept(); element = driver.find_element(By.LINK_TEXT, "See a sample prompt")
driver.execute_script("arguments[0].click();", element)
wait = WebDriverWait(driver, timeout=2)
alert = wait.until(lambda d : d.switch_to.alert)
alert.send_keys("Selenium")
text = alert.text
alert.accept()//Click the link to activate the alert
driver.FindElement(By.LinkText("See a sample prompt")).Click();
//Wait for the alert to be displayed and store it in a variable
IAlert alert = wait.Until(ExpectedConditions.AlertIsPresent());
//Type your message
alert.SendKeys("Selenium");
//Press the OK button
alert.Accept();
# Store the alert reference in a variable
alert = driver.switch_to.alert
# Type a message
alert.send_keys('selenium')
# Press on Ok button
alert.accept let alert = await driver.switchTo().alert();
//Type your message
await alert.sendKeys(text);
await alert.accept();//Click the link to activate the alert
driver.findElement(By.linkText("See a sample prompt")).click()
//Wait for the alert to be displayed and store it in a variable
val alert = wait.until(ExpectedConditions.alertIsPresent())
//Type your message
alert.sendKeys("Selenium")
//Press the OK button
alert.accept()
