def test_switch_to():
import kivy.uix.screenmanager as sm
manager = sm.ScreenManager()
screen1 = sm.Screen(name='first')
screen2 = sm.Screen(name='second')
manager.switch_to(screen1)
manager.switch_to(screen2)
manager.switch_to(screen1)
manager.switch_to(screen2)
manager.current = 'first'
manager.switch_to(screen1)
manager.current = 'second'
manager.switch_to(screen2)
def test_switching_does_not_affect_a_list_of_screens(transition_cls_name):
import kivy.uix.screenmanager as sm
transition_cls = getattr(sm, transition_cls_name)
scrmgr = sm.ScreenManager()
for i in range(3):
scrmgr.add_widget(sm.Screen(name=str(i)))
names = list(scrmgr.screen_names)
scrmgr.transition = transition_cls()
scrmgr.current = '1'
assert names == scrmgr.screen_names
scrmgr.transition = transition_cls()
scrmgr.current = '2'
assert names == scrmgr.screen_names