Maximize and minimize window in Selenium Python

Introduction

Maximizing or minimizing the browser window helps test how a website looks and works in different window sizes.

When you want to see the website in full screen to check layout issues.

When testing responsive design by resizing the browser window.

When you want to minimize distractions by hiding the browser during tests.

When automating tests that depend on window size or position.

When running tests on different screen resolutions.

Syntax

Selenium Python

driver.maximize_window()
driver.minimize_window()

These commands control the browser window size during tests.

Use them after opening the browser and before interacting with the page.

Examples

This opens Chrome and maximizes the window.

Selenium Python

from selenium import webdriver

driver = webdriver.Chrome()
driver.maximize_window()

This opens Chrome and minimizes the window.

Selenium Python

from selenium import webdriver

driver = webdriver.Chrome()
driver.minimize_window()

This maximizes the window, runs tests, then minimizes it.

Selenium Python

from selenium import webdriver

driver = webdriver.Chrome()
driver.maximize_window()
# do some testing

driver.minimize_window()

Sample Program

This script opens Chrome, maximizes the window, waits 2 seconds, minimizes the window, waits 2 seconds, then closes the browser. The print statements show the steps in the console.

Selenium Python

from selenium import webdriver
import time

# Open Chrome browser
driver = webdriver.Chrome()

# Maximize the browser window
driver.maximize_window()
print("Window maximized")

# Wait 2 seconds to see the effect
time.sleep(2)

# Minimize the browser window
driver.minimize_window()
print("Window minimized")

# Wait 2 seconds to see the effect
time.sleep(2)

# Close the browser
driver.quit()

Important Notes

Make sure the browser driver (like chromedriver) is installed and in your system path.

Some browsers or OS may not support minimize_window perfectly.

Use time.sleep() only for demonstration; in real tests, use explicit waits.

Summary

Use maximize_window() to make the browser full screen.

Use minimize_window() to hide the browser window.

These help test how your website behaves in different window sizes.

Practice

1. What does the maximize_window() method do in Selenium WebDriver?

easy

A. It minimizes the browser window to the taskbar.

B. It closes the browser window.

C. It refreshes the current page.

D. It makes the browser window full screen.

Solution

1. Step 1: Understand the purpose of maximize_window()

   The method is designed to enlarge the browser window to fill the screen.

2. Step 2: Compare with other window methods

   Unlike minimize_window() which hides the window, maximize_window() expands it fully.

3. Final Answer:

   It makes the browser window full screen. -> Option D

4. Quick Check:

   maximize_window() = full screen [OK]

Hint: Maximize means full screen, minimize means hide [OK]

Common Mistakes:

• Confusing maximize with minimize
• Thinking maximize closes the window
• Assuming maximize refreshes the page

2. Which of the following is the correct syntax to minimize the browser window using Selenium in Python?

easy

A. driver.minimizeWindow()

B. driver.minimize()

C. driver.minimize_window()

D. driver.window.minimize()

Solution

1. Step 1: Recall Selenium WebDriver method names

   The correct method to minimize the window is minimize_window() called on the driver object.

2. Step 2: Check syntax correctness

   Options A, B, and C use incorrect method names or wrong casing.

3. Final Answer:

   driver.minimize_window() -> Option C

4. Quick Check:

   Correct method name = minimize_window() [OK]

Hint: Use exact method names with underscores in Selenium [OK]

Common Mistakes:

• Using camelCase instead of snake_case
• Calling minimize() without _window
• Trying to access window as a property

3. What will be the output of the following code snippet?

from selenium import webdriver

driver = webdriver.Chrome()
driver.maximize_window()
size = driver.get_window_size()
print(size)

medium

A. {'width': 0, 'height': 0}

B. A dictionary with the current window width and height after maximizing

C. An error because get_window_size() is not a valid method

D. None

Solution

1. Step 1: Understand maximize_window() effect

   This method makes the browser window full screen, so the size will reflect the screen dimensions.

2. Step 2: Check get_window_size() output

   This method returns a dictionary with keys 'width' and 'height' showing current window size.

3. Final Answer:

   A dictionary with the current window width and height after maximizing -> Option B

4. Quick Check:

   maximize_window() + get_window_size() = size dict [OK]

Hint: get_window_size() returns dict with width and height [OK]

Common Mistakes:

• Expecting get_window_size() to return None or error
• Thinking maximize_window() does not affect size
• Confusing method names

4. Identify the error in the following Selenium Python code that tries to minimize the browser window:

from selenium import webdriver

driver = webdriver.Firefox()
driver.minimize()

medium

A. The method minimize() does not exist; should use minimize_window()

B. Firefox driver does not support window operations

C. Missing parentheses after webdriver.Firefox

D. minimize() should be called before creating the driver

Solution

1. Step 1: Check method name correctness

   The method to minimize the window is minimize_window(), not minimize().

2. Step 2: Verify driver and method compatibility

   Firefox driver supports window operations, so the error is due to wrong method name.

3. Final Answer:

   The method minimize() does not exist; should use minimize_window() -> Option A

4. Quick Check:

   Correct method = minimize_window() [OK]

Hint: Use full method names exactly as in docs [OK]

Common Mistakes:

• Using minimize() instead of minimize_window()
• Assuming Firefox driver lacks window methods
• Forgetting parentheses on driver creation

5. You want to test how your website behaves when the browser window is minimized and then maximized again. Which sequence of Selenium Python commands correctly achieves this?

hard

A. driver.minimize_window()
driver.maximize_window()

B. driver.maximize_window()
driver.minimize_window()

C. driver.set_window_size(0, 0)
driver.maximize_window()

D. driver.minimize()
driver.maximize()

Solution

1. Step 1: Minimize the window first

   Use minimize_window() to hide the browser window.

2. Step 2: Maximize the window after minimizing

   Use maximize_window() to restore it to full screen.

3. Step 3: Verify method correctness

   Options A, C, and D use incorrect methods or order; A reverses the intended test flow.

4. Final Answer:

   driver.minimize_window() driver.maximize_window() -> Option A

5. Quick Check:

   Minimize then maximize = B [OK]

Hint: Minimize first, then maximize to test window state changes [OK]

Common Mistakes:

• Reversing the order of minimize and maximize
• Using incorrect method names like minimize()
• Trying to set size to zero instead of minimizing