how to use setupclass and tearDownClass?

[shmily-cwt]

I want my test cases to initialize once, then execute all the cases, and then end. Not every test case needs to be initialized

[mdmintz]

If you run pytest using --reuse-session (or --rs), then only the first test will spin up the browser, and then all other tests will reuse the browser session. If you need more initialization, you can mark a test to go first by adding @pytest.mark.run(order=1), or calling it test_aaa since it runs alphabetically. You could name the last test test_zzz to have it run last.

import pytest
from seleniumbase import BaseCase

class MyTests(BaseCase):
    @pytest.mark.run(order=1)
    def test_aaa(self):
        ...

While reusing a session with --reuse-session, all tests will run in the same browser window because only the first test gets initialized.

[shmily-cwt]

Don't you develop a setupclass and teardown class? This makes it more flexible to use

[mdmintz]

That was described above. For a per-test basis there’s overriding setUp() and tearDown() as seen here: https://github.com/seleniumbase/SeleniumBase/blob/master/examples/boilerplates/base_test_case.py