Test multi instance and multi user session

!lamin login testuser1
!lamin init --storage "./testsetup-prepare"

import lamindb_setup as ln_setup
import pytest

assert ln_setup.settings.user.handle == "testuser1"

ln_setup.init(storage="./testsetup")

from lnschema_core.models import User

User.objects.get(handle="testuser1")

with pytest.raises(Exception):  # does not exist
    User.objects.get(handle="testuser2")

Let us login with another user:

ln_setup.login("testuser2")

User.objects.get(handle="testuser2")

Let us try to init another instance in the same Python session:

from lamindb_setup._init_instance import CannotSwitchDefaultInstance

with pytest.raises(CannotSwitchDefaultInstance):
    ln_setup.init(storage="./testsetup2")
with pytest.raises(CannotSwitchDefaultInstance):
    ln_setup.connect("testsetup")
with pytest.raises(RuntimeError):
    ln_setup.migrate.create()
with pytest.raises(RuntimeError):
    ln_setup.migrate.deploy()

assert ln_setup.settings.instance.slug == "testuser1/testsetup"

!lamin login testuser1
!lamin delete --force testsetup-prepare
!lamin delete --force testsetup