Action methods per page in Selenium Java - Practice Problems & Coding Challenges

Challenge - 5 Problems

🧠 Conceptual

intermediate

Purpose of Action Methods in Page Object Model

In Selenium testing using the Page Object Model, what is the main purpose of action methods defined in a page class?

A To initialize the WebDriver instance for the test

B To store the URLs of different pages in the application

C To perform user interactions like clicks and typing on web elements of that page

D To generate test reports after test execution

💡 Hint

Think about what actions a user can do on a web page and how tests simulate those.

Action methods encapsulate user interactions such as clicking buttons or entering text, making tests easier to read and maintain.

❓ Predict Output

intermediate

Output of Action Method Execution

Given the following Java Selenium page class snippet, what will be the output when loginPage.login("user", "pass") is called?

Selenium Java

public class LoginPage {
    WebDriver driver;
    
    public LoginPage(WebDriver driver) {
        this.driver = driver;
    }

    public void login(String username, String password) {
        System.out.println("Typing username: " + username);
        System.out.println("Typing password: " + password);
        System.out.println("Clicking login button");
    }
}

A

Typing username: user
Typing password: pass
Clicking login button

B

Typing username: pass
Typing password: user
Clicking login button

C

Clicking login button
Typing username: user
Typing password: pass

D No output because login method does not return anything

💡 Hint

Look at the order of the print statements inside the login method.

The method prints the username first, then password, then clicking login button in that order.

❓ locator

advanced

Best Locator Strategy for Action Methods

Which locator strategy is best practice to use inside action methods in a page class for stable and maintainable tests?

A Using IDs or unique attributes that rarely change

B Using absolute XPath expressions that include full path from root element

C Using CSS selectors with nth-child indexes for dynamic elements

D Using link text for buttons and links only

💡 Hint

Think about what locator is least likely to break when the page layout changes.

IDs or unique stable attributes provide the most reliable locators, making tests less fragile.

❓ assertion

advanced

Correct Assertion After Action Method

After calling an action method that submits a form, which assertion correctly verifies the success message text?

Selenium Java

String expectedMessage = "Form submitted successfully!";
String actualMessage = driver.findElement(By.id("success-msg")).getText();

A assertFalse(actualMessage.isEmpty());

B assertTrue(actualMessage.contains("Error"));

C assertNull(actualMessage);

D assertEquals(expectedMessage, actualMessage);

💡 Hint

Check which assertion compares the expected and actual text exactly.

assertEquals verifies that the actual message matches the expected success message exactly.

🔧 Debug

expert

Debugging Action Method Failure

An action method clickSubmit() in a page class throws ElementNotInteractableException during test runs. What is the most likely cause?

Selenium Java

public void clickSubmit() {
    WebElement submitBtn = driver.findElement(By.id("submit"));
    submitBtn.click();
}

A The locator By.id("submit") is incorrect and finds no element

B The submit button is hidden or disabled on the page when click is attempted

C The WebDriver instance is not initialized before calling clickSubmit()

D The click() method is deprecated and should not be used

💡 Hint

ElementNotInteractableException means the element exists but cannot be clicked.

This exception usually means the element is present but hidden, disabled, or overlapped, so Selenium cannot interact with it.