findElement by name in Selenium Java - Test Execution Trace

Test Overview

This test opens a browser, navigates to a sample login page, finds the username input field by its name attribute, enters a username, and verifies the input was successful.

Test Code - JUnit with Selenium WebDriver

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.jupiter.api.AfterEach;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import static org.junit.jupiter.api.Assertions.assertEquals;

public class FindElementByNameTest {
    private WebDriver driver;

    @BeforeEach
    public void setUp() {
        driver = new ChromeDriver();
    }

    @Test
    public void testFindElementByName() {
        driver.get("https://example.com/login");
        WebElement usernameInput = driver.findElement(By.name("username"));
        usernameInput.sendKeys("testuser");
        assertEquals("testuser", usernameInput.getAttribute("value"));
    }

    @AfterEach
    public void tearDown() {
        if (driver != null) {
            driver.quit();
        }
    }
}

Execution Trace - 6 Steps

Step	Action	System State	Assertion	Result
1	Test starts and Chrome browser opens	Chrome browser window is open and ready	—	PASS
2	Browser navigates to https://example.com/login	Login page is loaded with username input field having name='username'	—	PASS
3	Find element by name 'username' using driver.findElement(By.name("username"))	Username input field is located on the page	Element found with name attribute 'username'	PASS
4	Enter text 'testuser' into the username input field	Username input field contains text 'testuser'	—	PASS
5	Verify the input field's value attribute equals 'testuser'	Username input field value is 'testuser'	assertEquals("testuser", usernameInput.getAttribute("value"))	PASS
6	Test ends and browser closes	Browser window is closed	—	PASS

Failure Scenario

Failing Condition: The element with name 'username' is not present on the page

Execution Trace Quiz - 3 Questions

Which Selenium method is used to find the username input field in this test?

A driver.findElement(By.id("username"))

B driver.findElement(By.name("username"))

C driver.findElement(By.className("username"))

D driver.findElement(By.tagName("input"))

Key Result

Always verify the locator attribute (like 'name') matches exactly what is on the page, and ensure the page is fully loaded before locating elements to avoid NoSuchElementException.

Practice

1. What does the Selenium method findElement(By.name("username")) do in a test script?

easy

A. It finds all elements with the tag name "username".

B. It finds the first web element with the attribute name="username".

C. It clicks on the element with id "username".

D. It waits for the element with class "username" to appear.

Solution

1. Step 1: Understand the method purpose

   The method findElement(By.name("username")) searches for a single element with the name attribute equal to "username".

2. Step 2: Differentiate from other locators

   This method does not search by tag, id, or class, only by the name attribute.

3. Final Answer:

   It finds the first web element with the attribute name="username". -> Option B

4. Quick Check:

   findElement(By.name) = finds element by name attribute [OK]

Hint: Remember: findElement(By.name) targets the name attribute [OK]

Common Mistakes:

• Confusing name with id or class attributes
• Thinking it finds multiple elements instead of one
• Assuming it performs a click automatically

2. Which of the following is the correct syntax to find an element by its name attribute "email" in Selenium Java?

easy

A. driver.findElement(By.tagName("email"));

B. driver.findElement(By.id("email"));

C. driver.findElement(By.name("email"));

D. driver.findElement(By.className("email"));

Solution

1. Step 1: Identify the correct locator method

   To find an element by its name attribute, the correct method is By.name("email").

2. Step 2: Verify syntax correctness

   The syntax driver.findElement(By.name("email")); is valid and correctly uses the name locator.

3. Final Answer:

   driver.findElement(By.name("email")); -> Option C

4. Quick Check:

   Use By.name for name attribute [OK]

Hint: Use By.name("value") to find element by name attribute [OK]

Common Mistakes:

• Using By.id or By.className instead of By.name
• Missing quotes around the name value
• Using incorrect method names

3. What will happen when the following code runs if the page contains an input element <input name="search">?

WebElement element = driver.findElement(By.name("search"));
System.out.println(element.getTagName());

medium

A. It prints "input" to the console.

B. It throws a NoSuchElementException.

C. It prints "search" to the console.

D. It prints "name" to the console.

Solution

1. Step 1: Locate element by name attribute

   The code finds the element with name="search", which is an input tag.

2. Step 2: Print the tag name of the found element

   The method getTagName() returns the tag name of the element, which is "input".

3. Final Answer:

   It prints "input" to the console. -> Option A

4. Quick Check:

   getTagName() returns tag name [OK]

Hint: getTagName() returns the HTML tag, not attribute values [OK]

Common Mistakes:

• Expecting getTagName() to return attribute value
• Assuming element not found causes print output
• Confusing attribute name with tag name

4. Given the code snippet below, what is the main issue that will cause a failure?

WebElement element = driver.findElement(By.name("submitBtn"));
element.click();

Assume the page does not have any element with name="submitBtn".

medium

A. The code will compile but silently fail.

B. NullPointerException will be thrown at click().

C. The element will be found but click will do nothing.

D. NoSuchElementException will be thrown at findElement.

Solution

1. Step 1: Understand findElement behavior when element missing

   If no element matches the locator, findElement throws NoSuchElementException.

2. Step 2: Check what happens before click()

   The exception occurs before click() is called, so click is never reached.

3. Final Answer:

   NoSuchElementException will be thrown at findElement. -> Option D

4. Quick Check:

   Missing element causes NoSuchElementException [OK]

Hint: findElement throws exception if element not found [OK]

Common Mistakes:

• Expecting null instead of exception
• Thinking click() causes NullPointerException
• Assuming silent failure without error

5. You want to fill a form field with name="userEmail" but sometimes the element is inside an iframe. Which approach correctly finds the element by name and handles the iframe?

hard

A. Switch to iframe first, then use driver.findElement(By.name("userEmail")).

B. Use driver.findElement(By.name("userEmail")) directly without switching frames.

C. Use driver.findElement(By.id("userEmail")) after switching to iframe.

D. Switch to iframe after finding the element by name.

Solution

1. Step 1: Understand iframe context in Selenium

   Elements inside iframes require switching the driver's context to that iframe before locating elements inside it.

2. Step 2: Apply correct order of operations

   First switch to the iframe, then use findElement(By.name("userEmail")) to locate the element inside it.

3. Final Answer:

   Switch to iframe first, then use driver.findElement(By.name("userEmail")). -> Option A

4. Quick Check:

   Switch to iframe before locating inside it [OK]

Hint: Always switch to iframe before finding elements inside it [OK]

Common Mistakes:

• Trying to find element inside iframe without switching
• Using wrong locator like id instead of name
• Switching to iframe after locating element