Key combinations (key_down, key_up) in Selenium Python - Test Execution Trace

Test Overview

This test checks if pressing and releasing key combinations (like Ctrl + A) works correctly on a text input field. It verifies that the text is selected after the key combination.

Test Code - Selenium

Selenium Python

from selenium import webdriver
from selenium.webdriver.common.by import By
from selenium.webdriver.common.action_chains import ActionChains
from selenium.webdriver.common.keys import Keys
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.support import expected_conditions as EC
import unittest

class TestKeyCombinations(unittest.TestCase):
    def setUp(self):
        self.driver = webdriver.Chrome()
        self.driver.get('https://www.w3schools.com/tags/tryit.asp?filename=tryhtml_input_text')
        self.driver.switch_to.frame('iframeResult')

    def test_ctrl_a_select_all(self):
        driver = self.driver
        input_box = WebDriverWait(driver, 10).until(
            EC.presence_of_element_located((By.ID, 'fname'))
        )
        input_box.clear()
        input_box.send_keys('Hello World')

        actions = ActionChains(driver)
        actions.key_down(Keys.CONTROL).send_keys('a').key_up(Keys.CONTROL).perform()

        selected_text = driver.execute_script("return arguments[0].value.substring(arguments[0].selectionStart, arguments[0].selectionEnd);", input_box)
        self.assertEqual(selected_text, 'Hello World')

    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 opened with URL https://www.w3schools.com/tags/tryit.asp?filename=tryhtml_input_text loaded	-	PASS
2	Switch to iframe 'iframeResult' to access input field	Inside iframe with input field visible	Check iframe is switched successfully	PASS
3	Wait until input box with id 'fname' is present	Input box is present and visible	Input box located successfully	PASS
4	Clear input box and type 'Hello World'	Input box contains text 'Hello World'	Input box text is 'Hello World'	PASS
5	Perform key combination: hold Ctrl, press 'a', release Ctrl	Text 'Hello World' is selected in input box	Selected text equals 'Hello World'	PASS
6	Test ends and browser closes	Browser closed	-	PASS

Failure Scenario

Failing Condition: Input box not found or key combination does not select text

Execution Trace Quiz - 3 Questions

What does the test verify after performing the Ctrl + A key combination?

A That the input box is cleared

B That all text in the input box is selected

C That the input box is disabled

D That the browser navigates to a new page

Key Result

Always switch to the correct iframe before interacting with elements inside it, and use ActionChains for complex keyboard actions like key combinations.