def test_dictproperty_is_none():
from kivy.properties import DictProperty
d1 = DictProperty(None)
d1.set_name(wid, 'd1')
d1.link_eagerly(wid)
assert d1.get(wid) is None
d2 = DictProperty({'a': 1, 'b': 2}, allownone=True)
d2.set_name(wid, 'd2')
d2.link_eagerly(wid)
d2.set(wid, None)
assert d2.get(wid) is None
def test_dictcheck(self, set_name):
from kivy.properties import DictProperty
a = DictProperty()
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, {'foo': 'bar'})
self.assertEqual(a.get(wid), {'foo': 'bar'})
def test_dict(self, set_name):
from kivy.properties import DictProperty
x = DictProperty()
if set_name:
x.set_name(wid, 'x')
x.link_eagerly(wid)
else:
x.link(wid, 'x')
x.link_deps(wid, 'x')
# test observer
global observe_called
observe_called = 0
def observe(obj, value):
global observe_called
observe_called = 1
x.bind(wid, observe)
observe_called = 0
x.get(wid)['toto'] = 1
self.assertEqual(observe_called, 1)
observe_called = 0
x.get(wid)['toto'] = 2
self.assertEqual(observe_called, 1)
observe_called = 0
x.get(wid)['youupi'] = 2
self.assertEqual(observe_called, 1)
observe_called = 0
del x.get(wid)['toto']
self.assertEqual(observe_called, 1)
observe_called = 0
x.get(wid).update({'bleh': 5})
self.assertEqual(observe_called, 1)