def test_listproperty_is_none():
from kivy.properties import ListProperty
l1 = ListProperty(None)
l1.set_name(wid, 'l1')
l1.link_eagerly(wid)
assert l1.get(wid) is None
l2 = ListProperty([1, 2, 3], allownone=True)
l2.set_name(wid, 'l2')
l2.link_eagerly(wid)
l2.set(wid, None)
assert l2.get(wid) is None
def test_listcheck(self, set_name):
from kivy.properties import ListProperty
a = ListProperty()
if set_name:
a.set_name(wid, 'a')
a.link_eagerly(wid)
else:
a.link(wid, 'a')
a.link_deps(wid, 'a')
self.assertEqual(a.get(wid), [])
a.set(wid, [1, 2, 3])
self.assertEqual(a.get(wid), [1, 2, 3])