Why form handling is common in testing in Selenium Python - Test Your Understanding

Practice - 5 Tasks

1fill in blank

easy

Complete the code to locate the username input field by its name attribute.

Selenium Python

username_input = driver.find_element(By.[1], 'username')

Drag options to blanks, or click blank then click option'

ATAG_NAME

BID

CCLASS_NAME

DNAME

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'id' when the element does not have an id attribute.

Using 'class_name' which may select multiple elements.

The name attribute is commonly used to locate form fields like username inputs.

2fill in blank

medium

Complete the code to enter text into the password field.

Selenium Python

password_input = driver.find_element(By.ID, 'password')
password_input.[1]('mysecret')

Drag options to blanks, or click blank then click option'

Asend_keys

Bsubmit

Cclear

Dclick

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'click' which only clicks the element.

Using 'clear' which erases text but does not type.

Use send_keys to type text into input fields in Selenium.

3fill in blank

hard

Fix the error in the code to submit the form by clicking the submit button.

Selenium Python

submit_button = driver.find_element(By.CSS_SELECTOR, 'button[type=[1]]')
submit_button.click()

Drag options to blanks, or click blank then click option'

A'button'

B'submit'

C'input'

D'reset'

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'button' as type which is invalid.

Using 'reset' which resets the form instead of submitting.

The CSS selector should target button[type='submit'] to find the submit button.

4fill in blank

hard

Fill both blanks to check if the form submission was successful by verifying the success message text.

Selenium Python

success_message = driver.find_element(By.CLASS_NAME, '[1]')
assert '[2]' in success_message.text

Drag options to blanks, or click blank then click option'

Asuccess

BWelcome

Calert

DError

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'alert' which may be for warnings.

Checking for 'Error' which indicates failure.

The success message usually has a class like 'success' and contains text like 'Welcome' after form submission.

5fill in blank

hard

Fill all three blanks to create a dictionary of form data and fill the username field using Selenium.

Selenium Python

form_data = {'username': '[1]', 'password': '[2]'}
username_input = driver.find_element(By.NAME, 'username')
username_input.send_keys(form_data['[3]'])

Drag options to blanks, or click blank then click option'

Auser1

Bpassword

Cusername

Dpass123

Attempts:

3 left

💡 Hint

Common Mistakes

Mixing up keys and values in the dictionary.

Using wrong keys when accessing dictionary values.

We create a dictionary of form data {'username': 'user1', 'password': 'pass123'} and use it to fill the username field.

Practice

1. Why is form handling a common task in Selenium testing?

easy

A. Because forms collect user input which needs to be tested for correctness

B. Because Selenium cannot interact with buttons

C. Because forms are rarely used in websites

D. Because form handling requires no validation

Solution

1. Step 1: Understand the role of forms on websites

   Forms are used to collect user data like login info, search queries, or feedback.

2. Step 2: Recognize why testing forms is important

   Testing ensures the data entered is accepted and processed correctly by the application.

3. Final Answer:

   Because forms collect user input which needs to be tested for correctness -> Option A

4. Quick Check:

   Forms collect input = A [OK]

Hint: Forms collect data; testing checks data handling [OK]

Common Mistakes:

• Thinking Selenium can't handle buttons
• Assuming forms are rarely used
• Ignoring validation importance

2. Which Selenium Python command is used to enter text into a form field?

easy

A. driver.find_element(By.ID, 'input').submit()

B. driver.find_element(By.ID, 'input').click()

C. driver.find_element(By.ID, 'input').send_keys('text')

D. driver.find_element(By.ID, 'input').clear()

Solution

1. Step 1: Identify the method to input text

   The send_keys() method types text into input fields.

2. Step 2: Differentiate from other methods

   click() clicks elements, submit() submits forms, clear() clears text.

3. Final Answer:

   driver.find_element(By.ID, 'input').send_keys('text') -> Option C

4. Quick Check:

   send_keys() inputs text = A [OK]

Hint: Use send_keys() to type text in fields [OK]

Common Mistakes:

• Using click() to enter text
• Confusing submit() with typing
• Forgetting to clear() before typing

3. What will be the output of this Selenium Python code snippet?

from selenium.webdriver.common.by import By
input_field = driver.find_element(By.NAME, 'email')
input_field.send_keys('[e-mail]')
print(input_field.get_attribute('value'))

medium

A. [e-mail]

B. email

C. None

D. SyntaxError

Solution

1. Step 1: Understand send_keys effect

   The send_keys() method types the string into the input field.

2. Step 2: Check what get_attribute('value') returns

   This returns the current text inside the input field, which is the typed email.

3. Final Answer:

   [e-mail] -> Option A

4. Quick Check:

   Typed text = get_attribute('value') = B [OK]

Hint: get_attribute('value') shows typed input text [OK]

Common Mistakes:

• Expecting get_attribute to return element name
• Confusing attribute with placeholder
• Assuming None if no submit

4. Identify the error in this Selenium Python code for submitting a form:

submit_button = driver.find_element(By.ID, 'submit')
submit_button.send_keys('submit')

medium

A. submit_button variable name is invalid

B. find_element should use By.CLASS_NAME instead of By.ID

C. Missing import for By

D. send_keys() is incorrect to submit a form button

Solution

1. Step 1: Check method used on submit button

   The send_keys() method types text, not clicks or submits.

2. Step 2: Correct way to submit form via button

   Use click() on the button or submit() on the form element.

3. Final Answer:

   send_keys() is incorrect to submit a form button -> Option D

4. Quick Check:

   Use click() to submit button = C [OK]

Hint: Use click() to press buttons, not send_keys() [OK]

Common Mistakes:

• Using send_keys() to click buttons
• Confusing By.ID and By.CLASS_NAME
• Ignoring necessary imports

5. You want to test a login form with Selenium Python. Which approach best ensures the form handles empty input correctly?

hard

A. Skip form submission and check page title

B. Submit the form with empty fields and check for error messages

C. Fill both fields with valid data and submit

D. Only fill username and skip password field

Solution

1. Step 1: Understand testing empty input handling

   Submitting empty fields tests if the form validates required inputs properly.

2. Step 2: Evaluate other options

   Filling only one field or skipping submission won't test empty input handling fully.

3. Final Answer:

   Submit the form with empty fields and check for error messages -> Option B

4. Quick Check:

   Empty input test = submit empty + check errors = D [OK]

Hint: Submit empty form to test validation errors [OK]

Common Mistakes:

• Testing only with valid data
• Skipping form submission
• Filling partial fields without submit