import pytest
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
@pytest.fixture(params=[
{"browserName": "chrome"},
{"browserName": "firefox"}
])
def driver(request):
capabilities = request.param
grid_url = "http://localhost:4444/wd/hub"
driver = webdriver.Remote(command_executor=grid_url, desired_capabilities=capabilities)
yield driver
driver.quit()
@pytest.mark.parametrize("url", ["https://example.com", "https://example.org"])
def test_parallel_execution(driver, url):
driver.get(url)
wait = WebDriverWait(driver, 10)
heading = wait.until(EC.presence_of_element_located((By.TAG_NAME, "h1")))
assert heading.is_displayed(), f"Heading not displayed on {url}"
This test script uses pytest with a fixture driver that runs tests on Selenium Grid. The fixture uses params to specify two browser capabilities: Chrome and Firefox.
The webdriver.Remote connects to the Selenium Grid Hub URL. Each test runs on a different browser node in parallel when executed with pytest-xdist.
The test navigates to a URL and waits explicitly for the main heading to appear, then asserts it is visible. This confirms the page loaded successfully.
Using pytest.mark.parametrize allows testing multiple URLs. Running with pytest -n 2 will run both browser tests in parallel, demonstrating Selenium Grid's parallel execution capability.
