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=[
{"username": "user1@example.com", "password": "Pass123!"},
{"username": "user2@example.com", "password": "Pass456!"},
{"username": "user3@example.com", "password": "Pass789!"}
])
def credentials(request):
return request.param
@pytest.fixture
def driver():
driver = webdriver.Chrome()
driver.implicitly_wait(5)
yield driver
driver.quit()
def test_login_with_parametrized_credentials(driver, credentials):
driver.get("http://example.com/login")
# Wait for username field and enter username
username_field = WebDriverWait(driver, 10).until(
EC.element_to_be_clickable((By.ID, "username"))
)
username_field.clear()
username_field.send_keys(credentials["username"])
# Wait for password field and enter password
password_field = WebDriverWait(driver, 10).until(
EC.element_to_be_clickable((By.ID, "password"))
)
password_field.clear()
password_field.send_keys(credentials["password"])
# Wait for login button and click
login_button = WebDriverWait(driver, 10).until(
EC.element_to_be_clickable((By.ID, "loginBtn"))
)
login_button.click()
# Verify URL contains '/dashboard'
WebDriverWait(driver, 10).until(
EC.url_contains("/dashboard")
)
assert "/dashboard" in driver.current_url
# Verify logout button is present
logout_button = WebDriverWait(driver, 10).until(
EC.presence_of_element_located((By.ID, "logoutBtn"))
)
assert logout_button.is_displayed()
# Logout to reset state
logout_button.click()This test uses a pytest parametrized fixture named credentials to supply three different sets of user login data.
The driver fixture sets up the Selenium WebDriver and ensures it quits after the test.
The test function test_login_with_parametrized_credentials uses these fixtures. It opens the login page, waits explicitly for each element to be clickable before interacting, and enters the username and password from the current parameter set.
After clicking login, it waits until the URL contains '/dashboard' to confirm successful login, then asserts this condition.
It also checks that the logout button is visible, confirming the user is logged in.
Finally, it clicks logout to reset the state for the next test iteration.
This approach keeps tests clean, readable, and reliable by using explicit waits and parametrization.
