Why does pytest open browser when running test 2==2?

Question

Python

Greetings.
I'm trying to test a website with pytest and selenium webdriver. In the main fixture, do I create and return a Browser object? in which there will be methods for working with tabs, browser, etc. The problem is that even in a simple test where 2 == 2 is checked, the browser opens.
conftest.py file

import pytest
from app.browser import Browser

@pytest.fixture(scope="session")
def browser(request):
    # TODO add authorization check
    app = Browser()
    #request.addfinalizer(app.destroy)
    return app

browser.py - here is the main class for working with the browser

from selenium import webdriver
from config import *


class Browser:

    def __init__(self):
        if browser == "firefox":
            self.browser = webdriver.Firefox()
        elif browser == "chrome":
            self.browser = webdriver.Chrome()
        elif browser == "ie":
            self.browser = webdriver.Ie()
        self.browser.implicitly_wait(5)

    def open_me(self):
        self.browser.get('http://google.ru')

    def destroy(self):
        self.browser.quit()

the test itself

def test_open_page(browser):
    assert 2==2

Why does the browser open and then immediately close when I run the test? I'm passing the fixture to the test, but in the constructor I'm just assigning variables without opening any site.

Answer 1

Browser starts opening with webdriver.some_browser() instead of after driver.get(url)