First Selenium Java test - Practice Problems & Coding Challenges

Challenge - 5 Problems

❓ Predict Output

intermediate

What is the output of this Selenium Java test?

Consider this Selenium Java test code snippet. What will be the test result after execution?

Selenium Java

import org.openqa.selenium.By;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.WebElement;
import org.openqa.selenium.chrome.ChromeDriver;
import org.junit.Assert;
import org.junit.Test;

public class SimpleTest {
    @Test
    public void testTitle() {
        WebDriver driver = new ChromeDriver();
        driver.get("https://example.com");
        String title = driver.getTitle();
        Assert.assertEquals("Example Domain", title);
        driver.quit();
    }
}

A Test passes because the page title matches "Example Domain".

B Test fails because the driver is not closed properly.

C Test fails because the URL is incorrect.

D Test fails due to a NoSuchElementException.

💡 Hint

Think about what the getTitle() method returns for https://example.com.

The test opens the URL https://example.com, which has the title "Example Domain". The assertion checks if the title matches exactly, so the test passes. The driver is closed properly with driver.quit(). No element lookup is done, so no NoSuchElementException occurs.

❓ locator

intermediate

Which locator is best to find the login button?

Given a login button with HTML: , which locator is the best practice to find it in Selenium Java?

A By.id("loginBtn")

B By.className("btn")

C By.xpath("//button[text()='Login']")

D By.cssSelector("button[aria-label='Login']")

💡 Hint

Use the most specific and stable locator.

Using By.id("loginBtn") is best because IDs are unique and stable. Class names may be shared by multiple elements. XPath and CSS selectors are more complex and less efficient here.

❓ assertion

advanced

Which assertion correctly verifies the presence of a success message?

You want to check if the element with id "successMsg" contains the text "Login successful". Which assertion is correct in Selenium Java with JUnit?

Selenium Java

WebElement message = driver.findElement(By.id("successMsg"));
String text = message.getText();

A Assert.assertEquals("Login successful", text);

B Assert.assertNotNull(text);

C Assert.assertTrue(text.contains("Login successful"));

D Assert.assertFalse(text.isEmpty());

💡 Hint

The message might contain extra spaces or other text.

Using assertTrue with text.contains ensures the message includes the expected text even if there is extra content. assertEquals would fail if the text is not exactly the same.

🔧 Debug

advanced

Why does this Selenium test throw NoSuchElementException?

This test fails with NoSuchElementException: WebDriver driver = new ChromeDriver(); driver.get("https://example.com/login"); WebElement input = driver.findElement(By.id("username")); input.sendKeys("user1"); What is the most likely cause?

A The driver was not initialized before calling findElement.

B The sendKeys method is called before findElement.

C The URL is incorrect and page did not load.

D The element with id "username" is inside an iframe and not switched to.

💡 Hint

Check if the element is inside a frame or iframe.

If the element is inside an iframe, Selenium cannot find it until you switch the driver's context to that iframe. This causes NoSuchElementException.

❓ framework

expert

What is the correct order of JUnit annotations for Selenium test lifecycle?

Arrange these JUnit annotations in the order they execute during a Selenium test run: 1. @BeforeClass 2. @Before 3. @Test 4. @After 5. @AfterClass

A 2,1,3,4,5

B 1,2,3,4,5

C 1,3,2,4,5

D 1,2,4,3,5

💡 Hint

Think about setup and teardown phases at class and test method levels.

@BeforeClass runs once before all tests, @Before runs before each test, @Test is the test method, @After runs after each test, and @AfterClass runs once after all tests.