How to define driver in pytest

Question

I'm new to python selenium tests and, after Java C# projects, I'm a little bit confused. Before I set up a driver I need to define it with some Type, for example in Java:

static WebDriver driver;
if ('Chrome') {
    driver = ...
} else {
    driver = ...
}

How can I define driver in python and how other classes can access it without driver instance creation? Thanks

Have a look at the documentation here: https://www.selenium.dev/documentation/webdriver/getting_started/open_browser/ — Darkproduct, Aug 24 '22 at 11:27
Thanks for your reply, but I still don't understand how can I define a cross-browser driver...(as in the question) in python it can't be static. In the start I want it to be None and after this, I define it as Chrome or FF, etc. And because the driver is not static I can't understand how other classes can access it. Thanks — Arsenium, Aug 24 '22 at 11:56
See https://stackoverflow.com/questions/17540971/how-to-use-selenium-with-python — lubo, Aug 24 '22 at 11:59
You can use a member variable that is initialized in the constructor. Or you can wrap the WebDriver with your own wrapper classes for different browsers. There is a multitude of solutions and it depends on what else you want to do, to know which solution is best. — Darkproduct, Aug 24 '22 at 12:06

score 0 · Accepted Answer · answered Aug 24 '22 at 17:14

It works the same in python as it does in Java/C#. Once you have your driver variable instantiated with the desired browser, you just pass the driver instance to a new class/page object.

Your test would look like

driver = webdriver.Chrome() # or whatever browser driver you want
driver.get("https://www.website.com")
...
homePage = HomePage(driver)
assert homePage.get_username() == "John Smith"

and then you define your HomePage class

class HomePage()
    USERNAME_LOCATOR = (By.ID, 'username')

    def __init__(self, driver):
        self.driver = driver

    def get_username(self):
        return self.driver.find_element(USERNAME_LOCATOR).text

How to define driver in pytest

1 Answers1