Prompt alert text entry in Selenium Java - Practice Problems & Coding Challenges

Challenge - 5 Problems

❓ Predict Output

intermediate

What is the output after entering text in a prompt alert?

Consider this Selenium Java code snippet that handles a prompt alert. What will be the printed output after execution?

Selenium Java

WebDriver driver = new ChromeDriver();
driver.get("https://example.com/prompt");
Alert prompt = driver.switchTo().alert();
prompt.sendKeys("Hello");
prompt.accept();
String result = driver.findElement(By.id("result")).getText();
System.out.println(result);

A UnhandledAlertException

B Hello

C NoSuchElementException

D null

💡 Hint

The prompt alert accepts the input text and the page updates the element with id 'result' to show the entered text.

The prompt alert receives the text 'Hello' via sendKeys, then accept() confirms it. The page updates the element with id 'result' to display the entered text, so printing its text outputs 'Hello'.

❓ assertion

intermediate

Which assertion correctly verifies prompt alert text entry?

You want to verify that entering 'Test123' in a prompt alert updates the page text correctly. Which assertion is correct?

Selenium Java

Alert prompt = driver.switchTo().alert();
prompt.sendKeys("Test123");
prompt.accept();
String actualText = driver.findElement(By.id("output")).getText();

A assertFalse(actualText.isEmpty());

B assertTrue(actualText.contains("Test"));

C assertNotNull(actualText);

D assertEquals("Test123", actualText);

💡 Hint

You want to check exact match of the entered text.

assertEquals("Test123", actualText) checks that the page text exactly matches the entered prompt text, ensuring correct input handling.

🔧 Debug

advanced

Why does this prompt alert text entry code fail with UnhandledAlertException?

Review this code snippet. It throws UnhandledAlertException at runtime. What is the cause?

Selenium Java

driver.get("https://example.com/prompt");
WebElement button = driver.findElement(By.id("showPrompt"));
button.click();
String alertText = driver.switchTo().alert().getText();
System.out.println(alertText);
driver.findElement(By.id("inputField")).sendKeys("Hello");
driver.switchTo().alert().accept();

A The alert is accepted before sendKeys causing the exception.

B The alert text is not retrieved correctly causing the exception.

C Trying to interact with page element while prompt alert is open causes UnhandledAlertException.

D The button click does not open the prompt alert.

💡 Hint

You cannot interact with page elements while an alert is open.

When a prompt alert is open, Selenium cannot interact with page elements. The code tries to sendKeys to an element while alert is still open, causing UnhandledAlertException.

❓ framework

advanced

Which Selenium Java code snippet correctly enters text into a prompt alert and verifies the result?

Select the code snippet that correctly handles a prompt alert by entering 'QA Test', accepting it, and asserting the page shows the entered text.

A

Alert alert = driver.switchTo().alert();
alert.sendKeys("QA Test");
alert.accept();
String text = driver.findElement(By.id("message")).getText();
assertEquals("QA Test", text);

B

Alert alert = driver.switchTo().alert();
alert.accept();
alert.sendKeys("QA Test");
String text = driver.findElement(By.id("message")).getText();
assertEquals("QA Test", text);

C

driver.findElement(By.id("promptInput")).sendKeys("QA Test");
Alert alert = driver.switchTo().alert();
alert.accept();
String text = driver.findElement(By.id("message")).getText();
assertEquals("QA Test", text);

D

Alert alert = driver.switchTo().alert();
alert.dismiss();
alert.sendKeys("QA Test");
String text = driver.findElement(By.id("message")).getText();
assertEquals("QA Test", text);

💡 Hint

You must send keys before accepting the alert.

Option A correctly sends keys to the alert, accepts it, then verifies the page text. Other options send keys after accept/dismiss or try to send keys to page elements, causing errors.

🧠 Conceptual

expert

What is the correct sequence to handle a prompt alert text entry in Selenium Java?

Arrange the steps in the correct order to enter text into a prompt alert and confirm it using Selenium Java.

A 1,2,3,4

B 1,3,2,4

C 2,1,3,4

D 3,1,2,4

💡 Hint

You must switch to alert before sending keys and accept after sending keys.

The correct order is to switch to alert, send keys, accept alert, then verify page result. Other orders cause errors or incorrect behavior.