This test opens a web page, finds a button by its ID, clicks it, and verifies the expected text appears. It shows how Selenium automates browser actions and checks results, demonstrating why Selenium is a standard tool for web automation.
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 TestButtonClick(unittest.TestCase): def setUp(self): self.driver = webdriver.Chrome() self.driver.get('https://example.com/testpage') def test_button_click_shows_text(self): driver = self.driver # Wait until button is present button = WebDriverWait(driver, 10).until( EC.presence_of_element_located((By.ID, 'show-text-btn')) ) button.click() # Wait for the text to appear displayed_text = WebDriverWait(driver, 10).until( EC.visibility_of_element_located((By.ID, 'display-text')) ) self.assertEqual(displayed_text.text, 'Hello, Selenium!') def tearDown(self): self.driver.quit() if __name__ == '__main__': unittest.main()
| Step | Action | System State | Assertion | Result |
|---|---|---|---|---|
| 1 | Test starts and Chrome browser opens | Browser window is open and ready | - | PASS |
| 2 | Browser navigates to 'https://example.com/testpage' | Page loads with a button having ID 'show-text-btn' | - | PASS |
| 3 | Wait until button with ID 'show-text-btn' is present | Button is visible and interactable | Button presence confirmed | PASS |
| 4 | Click the button with ID 'show-text-btn' | Button is clicked, triggering text display | - | PASS |
| 5 | Wait until element with ID 'display-text' is visible | Text element appears on the page | Text element visibility confirmed | PASS |
| 6 | Assert that the displayed text equals 'Hello, Selenium!' | Text content is 'Hello, Selenium!' | Text content matches expected value | PASS |
| 7 | Test ends and browser closes | Browser window is closed | - | PASS |