Find element by name in Selenium Python - Test Execution Trace

Test Overview

This test opens a web page, finds an input element by its name attribute, enters text, and verifies the input value.

Test Code - Selenium

Selenium Python

from selenium import webdriver
from selenium.webdriver.common.by import By
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.support import expected_conditions as EC
import unittest

class TestFindElementByName(unittest.TestCase):
    def setUp(self):
        self.driver = webdriver.Chrome()
        self.driver.get('https://example.com/login')

    def test_find_element_by_name(self):
        driver = self.driver
        # Wait until the input element with name 'username' is present
        username_input = WebDriverWait(driver, 10).until(
            EC.presence_of_element_located((By.NAME, 'username'))
        )
        username_input.clear()
        username_input.send_keys('testuser')
        # Verify the input value
        self.assertEqual(username_input.get_attribute('value'), 'testuser')

    def tearDown(self):
        self.driver.quit()

if __name__ == '__main__':
    unittest.main()

Execution Trace - 6 Steps

Step	Action	System State	Assertion	Result
1	Test starts and Chrome browser opens	Browser window is open, ready to load URL	—	PASS
2	Navigates to 'https://example.com/login'	Login page is loaded with input fields	—	PASS
3	Waits until element with name 'username' is present	Input field with name 'username' is visible on page	Element located by name 'username' is found	PASS
4	Clears the input field and types 'testuser'	Input field now contains text 'testuser'	—	PASS
5	Checks that input field value equals 'testuser'	Input field value is 'testuser'	Assert input value == 'testuser'	PASS
6	Test ends and browser closes	Browser window is closed	—	PASS

Failure Scenario

Failing Condition: Element with name 'username' is not found within 10 seconds

Execution Trace Quiz - 3 Questions

Which Selenium method is used to find the element by name?

A driver.find_element(By.CLASS_NAME, 'username')

B driver.find_element_by_id('username')

C driver.find_element(By.NAME, 'username')

D driver.find_element_by_tag_name('input')

Key Result

Always use explicit waits like WebDriverWait with expected conditions to reliably find elements before interacting with them.

Practice

1. What does the Selenium method find_element(By.NAME, "username") do?

easy

A. Finds the element with the class name "username".

B. Finds the first element with the name attribute equal to "username".

C. Finds the element with the id attribute "username".

D. Finds all elements with the name attribute equal to "username".

Solution

1. Step 1: Understand the method purpose

   The method find_element locates a single element matching the given locator.

2. Step 2: Analyze the locator type

   Using By.NAME targets elements by their name attribute, not id or class.

3. Final Answer:

   Finds the first element with the name attribute equal to "username". -> Option B

4. Quick Check:

   find_element(By.NAME, "username") = first element by name [OK]

Hint: Remember: find_element finds one element by attribute [OK]

Common Mistakes:

• Confusing find_element with find_elements (plural)
• Using id or class instead of name attribute
• Assuming it finds multiple elements

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

easy

A. driver.find_element_by_name("email")

B. driver.find_element(By.ID, "email")

C. driver.find_element(By.NAME, "email")

D. driver.find_element(By.CLASS_NAME, "email")

Solution

1. Step 1: Recall modern Selenium syntax

   Since Selenium 4, the correct way is to use find_element(By.NAME, "email").

2. Step 2: Check each option

   driver.find_element_by_name("email") is deprecated syntax, C and D use wrong locator types.

3. Final Answer:

   driver.find_element(By.NAME, "email") -> Option C

4. Quick Check:

   Use By.NAME with find_element [OK]

Hint: Use By.NAME, not old find_element_by_name [OK]

Common Mistakes:

• Using deprecated find_element_by_name method
• Mixing locator types like ID or CLASS_NAME
• Forgetting to import By from selenium.webdriver.common.by

3. Given the code snippet:

from selenium import webdriver
from selenium.webdriver.common.by import By

driver = webdriver.Chrome()
driver.get('http://example.com')
element = driver.find_element(By.NAME, 'search')
print(element.tag_name)

What will be printed if the page has an input field with name="search"?

medium

A. An error because find_element is incorrect

B. "div"

C. "search"

D. "input"

Solution

1. Step 1: Understand what find_element returns

   It returns the first matching WebElement with name="search".

2. Step 2: Check the tag_name property

   The tag_name of an input field is "input".

3. Final Answer:

   "input" -> Option D

4. Quick Check:

   Element with name 'search' is input tag [OK]

Hint: tag_name shows HTML tag of found element [OK]

Common Mistakes:

• Confusing attribute value with tag name
• Assuming find_element returns text content
• Thinking find_element syntax is wrong here

4. What is wrong with this code snippet?

element = driver.find_element(By.name, "password")

medium

A. By.name should be By.NAME (case sensitive).

B. The method find_element does not exist.

C. The locator should be By.ID instead of By.name.

D. The quotes around "password" are incorrect.

Solution

1. Step 1: Check the locator usage

   Locator constants in Selenium are uppercase, so it should be By.NAME, not By.name.

2. Step 2: Verify other parts

   Method name and quotes are correct; locator type is appropriate for name attribute.

3. Final Answer:

   By.name should be By.NAME (case sensitive). -> Option A

4. Quick Check:

   Locator constants are uppercase in Selenium [OK]

Hint: Locator constants like By.NAME are uppercase [OK]

Common Mistakes:

• Using lowercase locator constants
• Confusing locator types (name vs id)
• Assuming method name is wrong

5. You want to fill a form field with name "user_email" using Selenium Python. Which code snippet correctly finds the element and enters the email "[e-mail]"?

hard

A. element = driver.find_element(By.NAME, "user_email")
element.send_keys("[e-mail]")

B. element = driver.find_element(By.ID, "user_email")
element.send_keys("[e-mail]")

C. element = driver.find_element(By.CLASS_NAME, "user_email")
element.send_keys("[e-mail]")

D. element = driver.find_element(By.NAME, "user_email")
element.click()

Solution

1. Step 1: Locate element by name attribute

   Use find_element(By.NAME, "user_email") to find the input field by its name.

2. Step 2: Enter text into the field

   Use send_keys("[e-mail]") to type the email into the field.

3. Final Answer:

   element = driver.find_element(By.NAME, "user_email") element.send_keys("[e-mail]") -> Option A

4. Quick Check:

   Find by name + send_keys to input text [OK]

Hint: Use send_keys after find_element to type text [OK]

Common Mistakes:

• Using wrong locator type (ID or CLASS_NAME)
• Using click() instead of send_keys() to enter text
• Not locating element before sending keys