1333 lines
35 KiB
Python
1333 lines
35 KiB
Python
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'''
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Test properties attached to a widget
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'''
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import unittest
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import pytest
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from kivy.event import EventDispatcher
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from functools import partial
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class _TestProperty(EventDispatcher):
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pass
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wid = _TestProperty()
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@pytest.fixture(autouse=True)
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def set_clock(kivy_clock):
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pass
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@pytest.fixture()
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def self():
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return unittest.TestCase()
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@pytest.mark.parametrize('set_name', [True, False])
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def test_base(self, set_name):
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from kivy.properties import Property
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a = Property(-1)
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if set_name:
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a.set_name(wid, 'a')
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a.link_eagerly(wid)
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else:
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a.link(wid, 'a')
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a.link_deps(wid, 'a')
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self.assertEqual(a.get(wid), -1)
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a.set(wid, 0)
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self.assertEqual(a.get(wid), 0)
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a.set(wid, 1)
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self.assertEqual(a.get(wid), 1)
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@pytest.mark.parametrize('set_name', [True, False])
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def test_observer(self, set_name):
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from kivy.properties import Property
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a = Property(-1)
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if set_name:
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a.set_name(wid, 'a')
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a.link_eagerly(wid)
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else:
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a.link(wid, 'a')
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a.link_deps(wid, 'a')
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self.assertEqual(a.get(wid), -1)
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global observe_called
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observe_called = 0
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def observe(obj, value):
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global observe_called
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observe_called = 1
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a.bind(wid, observe)
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a.set(wid, 0)
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self.assertEqual(a.get(wid), 0)
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self.assertEqual(observe_called, 1)
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observe_called = 0
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a.set(wid, 0)
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self.assertEqual(a.get(wid), 0)
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self.assertEqual(observe_called, 0)
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a.set(wid, 1)
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self.assertEqual(a.get(wid), 1)
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self.assertEqual(observe_called, 1)
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@pytest.mark.parametrize('set_name', [True, False])
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def test_objectcheck(self, set_name):
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from kivy.properties import ObjectProperty
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a = ObjectProperty(False)
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if set_name:
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a.set_name(wid, 'a')
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a.link_eagerly(wid)
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else:
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a.link(wid, 'a')
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a.link_deps(wid, 'a')
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self.assertEqual(a.get(wid), False)
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a.set(wid, True)
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self.assertEqual(a.get(wid), True)
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@pytest.mark.parametrize('set_name', [True, False])
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def test_stringcheck(self, set_name):
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from kivy.properties import StringProperty
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a = StringProperty()
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if set_name:
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a.set_name(wid, 'a')
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a.link_eagerly(wid)
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else:
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a.link(wid, 'a')
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a.link_deps(wid, 'a')
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self.assertEqual(a.get(wid), '')
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a.set(wid, 'hello')
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self.assertEqual(a.get(wid), 'hello')
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try:
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a.set(wid, 88) # number shouldn't be accepted
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self.fail('string accept number, fail.')
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except ValueError:
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pass
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@pytest.mark.parametrize('set_name', [True, False])
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def test_numericcheck(self, set_name):
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from kivy.properties import NumericProperty
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a = NumericProperty()
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if set_name:
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a.set_name(wid, 'a')
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a.link_eagerly(wid)
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else:
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a.link(wid, 'a')
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a.link_deps(wid, 'a')
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self.assertEqual(a.get(wid), 0)
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a.set(wid, 99)
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self.assertEqual(a.get(wid), 99)
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# try:
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# a.set(wid, '') # string shouldn't be accepted
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# self.fail('number accept string, fail.')
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# except ValueError:
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# pass
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@pytest.mark.parametrize('set_name', [True, False])
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def test_listcheck(self, set_name):
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from kivy.properties import ListProperty
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a = ListProperty()
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if set_name:
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a.set_name(wid, 'a')
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a.link_eagerly(wid)
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else:
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a.link(wid, 'a')
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a.link_deps(wid, 'a')
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self.assertEqual(a.get(wid), [])
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a.set(wid, [1, 2, 3])
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self.assertEqual(a.get(wid), [1, 2, 3])
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@pytest.mark.parametrize('set_name', [True, False])
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def test_dictcheck(self, set_name):
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from kivy.properties import DictProperty
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a = DictProperty()
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if set_name:
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a.set_name(wid, 'a')
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a.link_eagerly(wid)
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else:
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a.link(wid, 'a')
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a.link_deps(wid, 'a')
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self.assertEqual(a.get(wid), {})
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a.set(wid, {'foo': 'bar'})
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self.assertEqual(a.get(wid), {'foo': 'bar'})
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@pytest.mark.parametrize('set_name', [True, False])
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def test_propertynone(self, set_name):
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from kivy.properties import NumericProperty
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a = NumericProperty(0, allownone=True)
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if set_name:
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a.set_name(wid, 'a')
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a.link_eagerly(wid)
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else:
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a.link(wid, 'a')
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a.link_deps(wid, 'a')
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self.assertEqual(a.get(wid), 0)
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try:
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a.set(wid, None)
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self.assertEqual(a.get(wid), None)
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except ValueError:
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pass
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a.set(wid, 1)
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self.assertEqual(a.get(wid), 1)
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@pytest.mark.parametrize('set_name', [True, False])
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def test_reference(self, set_name):
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from kivy.properties import NumericProperty, ReferenceListProperty
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x = NumericProperty(0)
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if set_name:
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x.set_name(wid, 'x')
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x.link_eagerly(wid)
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else:
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x.link(wid, 'x')
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x.link_deps(wid, 'x')
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y = NumericProperty(0)
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if set_name:
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y.set_name(wid, 'y')
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y.link_eagerly(wid)
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else:
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y.link(wid, 'y')
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y.link_deps(wid, 'y')
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pos = ReferenceListProperty(x, y)
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if set_name:
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pos.set_name(wid, 'pos')
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pos.link_eagerly(wid)
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else:
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pos.link(wid, 'pos')
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pos.link_deps(wid, 'pos')
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self.assertEqual(x.get(wid), 0)
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self.assertEqual(y.get(wid), 0)
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self.assertEqual(pos.get(wid), [0, 0])
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x.set(wid, 50)
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self.assertEqual(pos.get(wid), [50, 0])
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y.set(wid, 50)
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self.assertEqual(pos.get(wid), [50, 50])
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pos.set(wid, [0, 0])
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self.assertEqual(pos.get(wid), [0, 0])
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self.assertEqual(x.get(wid), 0)
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self.assertEqual(y.get(wid), 0)
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# test observer
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global observe_called
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observe_called = 0
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def observe(obj, value):
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global observe_called
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observe_called = 1
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pos.bind(wid, observe)
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self.assertEqual(observe_called, 0)
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x.set(wid, 99)
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self.assertEqual(observe_called, 1)
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@pytest.mark.parametrize('set_name', [True, False])
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def test_reference_child_update(self, set_name):
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from kivy.properties import NumericProperty, ReferenceListProperty
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x = NumericProperty(0)
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if set_name:
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x.set_name(wid, 'x')
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x.link_eagerly(wid)
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else:
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x.link(wid, 'x')
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x.link_deps(wid, 'x')
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y = NumericProperty(0)
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if set_name:
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y.set_name(wid, 'y')
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y.link_eagerly(wid)
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else:
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y.link(wid, 'y')
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y.link_deps(wid, 'y')
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pos = ReferenceListProperty(x, y)
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if set_name:
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pos.set_name(wid, 'pos')
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pos.link_eagerly(wid)
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else:
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pos.link(wid, 'pos')
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pos.link_deps(wid, 'pos')
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pos.get(wid)[0] = 10
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self.assertEqual(pos.get(wid), [10, 0])
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pos.get(wid)[:] = (20, 30)
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self.assertEqual(pos.get(wid), [20, 30])
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@pytest.mark.parametrize('set_name', [True, False])
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def test_dict(self, set_name):
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from kivy.properties import DictProperty
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x = DictProperty()
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if set_name:
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x.set_name(wid, 'x')
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x.link_eagerly(wid)
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else:
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x.link(wid, 'x')
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x.link_deps(wid, 'x')
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# test observer
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global observe_called
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observe_called = 0
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def observe(obj, value):
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global observe_called
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observe_called = 1
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x.bind(wid, observe)
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observe_called = 0
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x.get(wid)['toto'] = 1
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self.assertEqual(observe_called, 1)
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observe_called = 0
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x.get(wid)['toto'] = 2
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self.assertEqual(observe_called, 1)
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observe_called = 0
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x.get(wid)['youupi'] = 2
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self.assertEqual(observe_called, 1)
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observe_called = 0
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del x.get(wid)['toto']
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self.assertEqual(observe_called, 1)
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observe_called = 0
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x.get(wid).update({'bleh': 5})
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self.assertEqual(observe_called, 1)
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@pytest.mark.parametrize('set_name', [True, False])
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def test_bounded_numeric_property(self, set_name):
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from kivy.properties import BoundedNumericProperty
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bnp = BoundedNumericProperty(0.0, min=0.0, max=3.5)
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if set_name:
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bnp.set_name(wid, 'bnp')
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bnp.link_eagerly(wid)
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else:
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bnp.link(wid, 'bnp')
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bnp.link_deps(wid, 'bnp')
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bnp.set(wid, 1)
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bnp.set(wid, 0.0)
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bnp.set(wid, 3.1)
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bnp.set(wid, 3.5)
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self.assertRaises(ValueError, partial(bnp.set, wid, 3.6))
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self.assertRaises(ValueError, partial(bnp.set, wid, -3))
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@pytest.mark.parametrize('set_name', [True, False])
|
||
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def test_bounded_numeric_property_error_value(self, set_name):
|
||
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from kivy.properties import BoundedNumericProperty
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||
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bnp = BoundedNumericProperty(0, min=-5, max=5, errorvalue=1)
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||
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if set_name:
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bnp.set_name(wid, 'bnp')
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bnp.link_eagerly(wid)
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||
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else:
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bnp.link(wid, 'bnp')
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bnp.link_deps(wid, 'bnp')
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bnp.set(wid, 1)
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self.assertEqual(bnp.get(wid), 1)
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bnp.set(wid, 5)
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self.assertEqual(bnp.get(wid), 5)
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bnp.set(wid, 6)
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self.assertEqual(bnp.get(wid), 1)
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bnp.set(wid, -5)
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self.assertEqual(bnp.get(wid), -5)
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bnp.set(wid, -6)
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self.assertEqual(bnp.get(wid), 1)
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@pytest.mark.parametrize('set_name', [True, False])
|
||
|
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def test_bounded_numeric_property_error_handler(self, set_name):
|
||
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from kivy.properties import BoundedNumericProperty
|
||
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|
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|
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bnp = BoundedNumericProperty(
|
||
|
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0, min=-5, max=5,
|
||
|
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errorhandler=lambda x: 5 if x > 5 else -5)
|
||
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|
||
|
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if set_name:
|
||
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bnp.set_name(wid, 'bnp')
|
||
|
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bnp.link_eagerly(wid)
|
||
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else:
|
||
|
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bnp.link(wid, 'bnp')
|
||
|
|
bnp.link_deps(wid, 'bnp')
|
||
|
|
|
||
|
|
bnp.set(wid, 1)
|
||
|
|
self.assertEqual(bnp.get(wid), 1)
|
||
|
|
|
||
|
|
bnp.set(wid, 5)
|
||
|
|
self.assertEqual(bnp.get(wid), 5)
|
||
|
|
|
||
|
|
bnp.set(wid, 10)
|
||
|
|
self.assertEqual(bnp.get(wid), 5)
|
||
|
|
|
||
|
|
bnp.set(wid, -5)
|
||
|
|
self.assertEqual(bnp.get(wid), -5)
|
||
|
|
|
||
|
|
bnp.set(wid, -10)
|
||
|
|
self.assertEqual(bnp.get(wid), -5)
|
||
|
|
|
||
|
|
|
||
|
|
@pytest.mark.parametrize('set_name', [True, False])
|
||
|
|
def test_numeric_string_with_units_check(self, set_name):
|
||
|
|
from kivy.properties import NumericProperty
|
||
|
|
from kivy.metrics import Metrics
|
||
|
|
|
||
|
|
a = NumericProperty()
|
||
|
|
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), 0)
|
||
|
|
|
||
|
|
a.set(wid, '55dp')
|
||
|
|
density = Metrics.density
|
||
|
|
self.assertEqual(a.get(wid), 55 * density)
|
||
|
|
self.assertEqual(a.get_format(wid), 'dp')
|
||
|
|
|
||
|
|
a.set(wid, u'55dp')
|
||
|
|
self.assertEqual(a.get(wid), 55 * density)
|
||
|
|
self.assertEqual(a.get_format(wid), 'dp')
|
||
|
|
|
||
|
|
a.set(wid, '99in')
|
||
|
|
self.assertEqual(a.get(wid), 9504.0 * density)
|
||
|
|
self.assertEqual(a.get_format(wid), 'in')
|
||
|
|
|
||
|
|
a.set(wid, u'99in')
|
||
|
|
self.assertEqual(a.get(wid), 9504.0 * density)
|
||
|
|
self.assertEqual(a.get_format(wid), 'in')
|
||
|
|
|
||
|
|
|
||
|
|
@pytest.mark.parametrize('set_name', [True, False])
|
||
|
|
def test_numeric_string_without_units(self, set_name):
|
||
|
|
from kivy.properties import NumericProperty
|
||
|
|
|
||
|
|
a = NumericProperty()
|
||
|
|
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), 0)
|
||
|
|
|
||
|
|
a.set(wid, '2')
|
||
|
|
self.assertEqual(a.get(wid), 2)
|
||
|
|
|
||
|
|
|
||
|
|
def test_property_rebind(self):
|
||
|
|
from kivy.uix.label import Label
|
||
|
|
from kivy.uix.togglebutton import ToggleButton
|
||
|
|
from kivy.lang import Builder
|
||
|
|
from kivy.properties import ObjectProperty, DictProperty, AliasProperty
|
||
|
|
from kivy.clock import Clock
|
||
|
|
|
||
|
|
class ObjWidget(Label):
|
||
|
|
button = ObjectProperty(None, rebind=True, allownone=True)
|
||
|
|
|
||
|
|
class ObjWidgetRebindFalse(Label):
|
||
|
|
button = ObjectProperty(None, rebind=False, allownone=True)
|
||
|
|
|
||
|
|
class DictWidget(Label):
|
||
|
|
button = DictProperty({'button': None}, rebind=True,
|
||
|
|
allownone=True)
|
||
|
|
|
||
|
|
class DictWidgetFalse(Label):
|
||
|
|
button = DictProperty({'button': None}, rebind=False)
|
||
|
|
|
||
|
|
class AliasWidget(Label):
|
||
|
|
_button = None
|
||
|
|
|
||
|
|
def setter(self, value):
|
||
|
|
self._button = value
|
||
|
|
return True
|
||
|
|
|
||
|
|
def getter(self):
|
||
|
|
return self._button
|
||
|
|
button = AliasProperty(getter, setter, rebind=True)
|
||
|
|
|
||
|
|
Builder.load_string('''
|
||
|
|
<ObjWidget>:
|
||
|
|
text: self.button.state if self.button is not None else 'Unset'
|
||
|
|
|
||
|
|
<ObjWidgetRebindFalse>:
|
||
|
|
text: self.button.state if self.button is not None else 'Unset'
|
||
|
|
|
||
|
|
<AliasWidget>:
|
||
|
|
text: self.button.state if self.button is not None else 'Unset'
|
||
|
|
|
||
|
|
<DictWidget>:
|
||
|
|
text: self.button.button.state if self.button.button is not None\
|
||
|
|
else 'Unset'
|
||
|
|
|
||
|
|
<DictWidgetFalse>:
|
||
|
|
text: self.button.button.state if self.button.button is not None\
|
||
|
|
else 'Unset'
|
||
|
|
''')
|
||
|
|
|
||
|
|
obj = ObjWidget()
|
||
|
|
obj_false = ObjWidgetRebindFalse()
|
||
|
|
dict_rebind = DictWidget()
|
||
|
|
dict_false = DictWidgetFalse()
|
||
|
|
alias_rebind = AliasWidget()
|
||
|
|
button = ToggleButton()
|
||
|
|
Clock.tick()
|
||
|
|
self.assertEqual(obj.text, 'Unset')
|
||
|
|
self.assertEqual(obj_false.text, 'Unset')
|
||
|
|
self.assertEqual(dict_rebind.text, 'Unset')
|
||
|
|
self.assertEqual(dict_false.text, 'Unset')
|
||
|
|
self.assertEqual(alias_rebind.text, 'Unset')
|
||
|
|
|
||
|
|
obj.button = button
|
||
|
|
obj_false.button = button
|
||
|
|
dict_rebind.button.button = button
|
||
|
|
dict_false.button.button = button
|
||
|
|
alias_rebind.button = button
|
||
|
|
Clock.tick()
|
||
|
|
self.assertEqual(obj.text, 'normal')
|
||
|
|
self.assertEqual(obj_false.text, 'normal')
|
||
|
|
self.assertEqual(dict_rebind.text, 'normal')
|
||
|
|
self.assertEqual(dict_false.text, 'Unset')
|
||
|
|
self.assertEqual(alias_rebind.text, 'normal')
|
||
|
|
|
||
|
|
button.state = 'down'
|
||
|
|
Clock.tick()
|
||
|
|
self.assertEqual(obj.text, 'down')
|
||
|
|
self.assertEqual(obj_false.text, 'normal')
|
||
|
|
self.assertEqual(dict_rebind.text, 'down')
|
||
|
|
self.assertEqual(dict_false.text, 'Unset')
|
||
|
|
self.assertEqual(alias_rebind.text, 'down')
|
||
|
|
|
||
|
|
button.state = 'normal'
|
||
|
|
Clock.tick()
|
||
|
|
self.assertEqual(obj.text, 'normal')
|
||
|
|
self.assertEqual(obj_false.text, 'normal')
|
||
|
|
self.assertEqual(dict_rebind.text, 'normal')
|
||
|
|
self.assertEqual(dict_false.text, 'Unset')
|
||
|
|
self.assertEqual(alias_rebind.text, 'normal')
|
||
|
|
|
||
|
|
obj.button = None
|
||
|
|
obj_false.button = None
|
||
|
|
dict_rebind.button.button = None
|
||
|
|
dict_false.button.button = None
|
||
|
|
alias_rebind.button = None
|
||
|
|
Clock.tick()
|
||
|
|
self.assertEqual(obj.text, 'Unset')
|
||
|
|
self.assertEqual(obj_false.text, 'Unset')
|
||
|
|
self.assertEqual(dict_rebind.text, 'Unset')
|
||
|
|
self.assertEqual(dict_false.text, 'Unset')
|
||
|
|
self.assertEqual(alias_rebind.text, 'Unset')
|
||
|
|
|
||
|
|
|
||
|
|
@pytest.mark.parametrize('set_name', [True, False])
|
||
|
|
def test_color_property(self, set_name):
|
||
|
|
from kivy.properties import ColorProperty
|
||
|
|
|
||
|
|
color = ColorProperty()
|
||
|
|
if set_name:
|
||
|
|
color.set_name(wid, 'color')
|
||
|
|
color.link_eagerly(wid)
|
||
|
|
else:
|
||
|
|
color.link(wid, 'color')
|
||
|
|
color.link_deps(wid, 'color')
|
||
|
|
self.assertEqual(color.get(wid), [1, 1, 1, 1])
|
||
|
|
|
||
|
|
color2 = ColorProperty()
|
||
|
|
if set_name:
|
||
|
|
color2.set_name(wid, 'color2')
|
||
|
|
color2.link_eagerly(wid)
|
||
|
|
else:
|
||
|
|
color2.link(wid, 'color2')
|
||
|
|
color2.link_deps(wid, 'color2')
|
||
|
|
self.assertEqual(color2.get(wid), [1, 1, 1, 1])
|
||
|
|
|
||
|
|
color.set(wid, 'yellow')
|
||
|
|
self.assertEqual(color.get(wid), [1.0, 1.0, 0.0, 1.0])
|
||
|
|
|
||
|
|
color.set(wid, "#00ff00")
|
||
|
|
self.assertEqual(color.get(wid), [0, 1, 0, 1])
|
||
|
|
|
||
|
|
color.set(wid, "#7f7fff7f")
|
||
|
|
self.assertEqual(color.get(wid)[0], 127 / 255.)
|
||
|
|
self.assertEqual(color.get(wid)[1], 127 / 255.)
|
||
|
|
self.assertEqual(color.get(wid)[2], 1)
|
||
|
|
self.assertEqual(color.get(wid)[3], 127 / 255.)
|
||
|
|
|
||
|
|
color.set(wid, (1, 1, 0))
|
||
|
|
self.assertEqual(color.get(wid), [1, 1, 0, 1])
|
||
|
|
color.set(wid, (1, 1, 0, 0))
|
||
|
|
self.assertEqual(color.get(wid), [1, 1, 0, 0])
|
||
|
|
|
||
|
|
color.set(wid, [1, 1, 1, 1])
|
||
|
|
color_value = color.get(wid)
|
||
|
|
color_value[0] = 0.5
|
||
|
|
self.assertEqual(color.get(wid), [0.5, 1, 1, 1])
|
||
|
|
|
||
|
|
self.assertEqual(color2.get(wid), [1, 1, 1, 1])
|
||
|
|
color2.set(wid, color.get(wid))
|
||
|
|
self.assertEqual(color2.get(wid), [0.5, 1, 1, 1])
|
||
|
|
|
||
|
|
color.set(wid, [1, 1, 1, 1])
|
||
|
|
color_value = color.get(wid)
|
||
|
|
color_value[:] = [0, 1, 0, 1]
|
||
|
|
self.assertEqual(color.get(wid), [0, 1, 0, 1])
|
||
|
|
|
||
|
|
|
||
|
|
@pytest.mark.parametrize('watch_before_use', [True, False])
|
||
|
|
def test_alias_property_without_setter(self, watch_before_use):
|
||
|
|
from kivy.properties import AliasProperty
|
||
|
|
|
||
|
|
expected_value = 5
|
||
|
|
|
||
|
|
class CustomAlias(EventDispatcher):
|
||
|
|
|
||
|
|
def _get_prop(self):
|
||
|
|
self.getter_called += 1
|
||
|
|
return expected_value
|
||
|
|
|
||
|
|
prop = AliasProperty(_get_prop, None, watch_before_use=watch_before_use)
|
||
|
|
|
||
|
|
def __init__(self, **kwargs):
|
||
|
|
super(CustomAlias, self).__init__(**kwargs)
|
||
|
|
self.getter_called = 0
|
||
|
|
|
||
|
|
# Initial checks
|
||
|
|
wid = CustomAlias()
|
||
|
|
self.assertEqual(wid.getter_called, 0)
|
||
|
|
|
||
|
|
# Get value, should call getter once
|
||
|
|
value = wid.prop
|
||
|
|
self.assertEqual(value, expected_value)
|
||
|
|
self.assertEqual(wid.getter_called, 1)
|
||
|
|
|
||
|
|
# Setter should raise an AttributeError
|
||
|
|
self.assertRaises(AttributeError, partial(setattr, wid, 'prop', 1))
|
||
|
|
|
||
|
|
|
||
|
|
@pytest.mark.parametrize('watch_before_use', [True, False])
|
||
|
|
def test_alias_property(self, watch_before_use):
|
||
|
|
from kivy.properties import AliasProperty
|
||
|
|
|
||
|
|
class CustomAlias(EventDispatcher):
|
||
|
|
|
||
|
|
def _get_prop(self):
|
||
|
|
self.getter_called += 1
|
||
|
|
|
||
|
|
def _set_prop(self, value):
|
||
|
|
self.setter_called += 1
|
||
|
|
|
||
|
|
prop = AliasProperty(
|
||
|
|
_get_prop, _set_prop, watch_before_use=watch_before_use)
|
||
|
|
|
||
|
|
def __init__(self, **kwargs):
|
||
|
|
super(CustomAlias, self).__init__(**kwargs)
|
||
|
|
self.getter_called = 0
|
||
|
|
self.setter_called = 0
|
||
|
|
self.callback_called = 0
|
||
|
|
|
||
|
|
def callback(widget, value):
|
||
|
|
widget.callback_called += 1
|
||
|
|
|
||
|
|
# Initial checks
|
||
|
|
wid = CustomAlias()
|
||
|
|
wid.bind(prop=callback)
|
||
|
|
self.assertEqual(wid.getter_called, 0)
|
||
|
|
self.assertEqual(wid.setter_called, 0)
|
||
|
|
self.assertEqual(wid.callback_called, 0)
|
||
|
|
|
||
|
|
# Set property, should call setter to set the value
|
||
|
|
# Getter and callback should not be called because `_set_prop` doesn't
|
||
|
|
# returns True
|
||
|
|
wid.prop = 1
|
||
|
|
self.assertEqual(wid.getter_called, 0)
|
||
|
|
self.assertEqual(wid.setter_called, 1)
|
||
|
|
self.assertEqual(wid.callback_called, 0)
|
||
|
|
|
||
|
|
# Set property to same value as before, should only call setter
|
||
|
|
wid.prop = 1
|
||
|
|
self.assertEqual(wid.getter_called, 0)
|
||
|
|
self.assertEqual(wid.setter_called, 2)
|
||
|
|
self.assertEqual(wid.callback_called, 0)
|
||
|
|
|
||
|
|
# Get value of the property, should call getter once
|
||
|
|
self.assertEqual(wid.prop, None)
|
||
|
|
self.assertEqual(wid.getter_called, 1)
|
||
|
|
self.assertEqual(wid.setter_called, 2)
|
||
|
|
self.assertEqual(wid.callback_called, 0)
|
||
|
|
|
||
|
|
|
||
|
|
@pytest.mark.parametrize('watch_before_use', [True, False])
|
||
|
|
def test_alias_property_cache_true(self, watch_before_use):
|
||
|
|
from kivy.properties import AliasProperty
|
||
|
|
|
||
|
|
expected_value = 5
|
||
|
|
|
||
|
|
class CustomAlias(EventDispatcher):
|
||
|
|
|
||
|
|
def _get_prop(self):
|
||
|
|
self.getter_called += 1
|
||
|
|
return expected_value
|
||
|
|
|
||
|
|
def _set_prop(self, value):
|
||
|
|
self.setter_called += 1
|
||
|
|
return True
|
||
|
|
|
||
|
|
prop = AliasProperty(
|
||
|
|
_get_prop, _set_prop, cache=True, watch_before_use=watch_before_use)
|
||
|
|
|
||
|
|
def __init__(self, **kwargs):
|
||
|
|
super(CustomAlias, self).__init__(**kwargs)
|
||
|
|
self.getter_called = 0
|
||
|
|
self.setter_called = 0
|
||
|
|
|
||
|
|
# Initial checks
|
||
|
|
wid = CustomAlias()
|
||
|
|
self.assertEqual(wid.getter_called, 0)
|
||
|
|
self.assertEqual(wid.setter_called, 0)
|
||
|
|
|
||
|
|
# Get value of the property, should call getter once
|
||
|
|
value = wid.prop
|
||
|
|
self.assertEqual(value, expected_value)
|
||
|
|
self.assertEqual(wid.getter_called, 1)
|
||
|
|
self.assertEqual(wid.setter_called, 0)
|
||
|
|
|
||
|
|
# Get value of the property, should return cached value
|
||
|
|
# Getter should not be called
|
||
|
|
value = wid.prop
|
||
|
|
self.assertEqual(value, expected_value)
|
||
|
|
self.assertEqual(wid.getter_called, 1)
|
||
|
|
self.assertEqual(wid.setter_called, 0)
|
||
|
|
|
||
|
|
# Set value of property, should call getter and setter
|
||
|
|
wid.prop = 10
|
||
|
|
value = wid.prop
|
||
|
|
self.assertEqual(value, expected_value)
|
||
|
|
self.assertEqual(wid.setter_called, 1)
|
||
|
|
self.assertEqual(wid.getter_called, 2)
|
||
|
|
|
||
|
|
|
||
|
|
@pytest.mark.parametrize('watch_before_use', [True, False])
|
||
|
|
def test_alias_property_with_bind(self, watch_before_use):
|
||
|
|
from kivy.properties import NumericProperty, AliasProperty
|
||
|
|
|
||
|
|
class CustomAlias(EventDispatcher):
|
||
|
|
|
||
|
|
x = NumericProperty(0)
|
||
|
|
width = NumericProperty(100)
|
||
|
|
|
||
|
|
def get_right(self):
|
||
|
|
return self.x + self.width
|
||
|
|
|
||
|
|
def set_right(self, value):
|
||
|
|
self.x = value - self.width
|
||
|
|
|
||
|
|
right = AliasProperty(
|
||
|
|
get_right, set_right, bind=('x', 'width'),
|
||
|
|
watch_before_use=watch_before_use)
|
||
|
|
|
||
|
|
def __init__(self, **kwargs):
|
||
|
|
super(CustomAlias, self).__init__(**kwargs)
|
||
|
|
self.callback_called = 0
|
||
|
|
|
||
|
|
# Assert values when setting x, width or right properties
|
||
|
|
wid = CustomAlias()
|
||
|
|
self.assertEqual(wid.right, 100)
|
||
|
|
wid.x = 500
|
||
|
|
self.assertEqual(wid.right, 600)
|
||
|
|
wid.width = 50
|
||
|
|
self.assertEqual(wid.right, 550)
|
||
|
|
wid.right = 100
|
||
|
|
self.assertEqual(wid.width, 50)
|
||
|
|
self.assertEqual(wid.x, 50)
|
||
|
|
|
||
|
|
def callback(widget, value):
|
||
|
|
widget.callback_called += 1
|
||
|
|
|
||
|
|
wid.bind(right=callback)
|
||
|
|
|
||
|
|
# Callback should be called only when property changes
|
||
|
|
wid.x = 100
|
||
|
|
self.assertEqual(wid.callback_called, 1)
|
||
|
|
wid.x = 100
|
||
|
|
self.assertEqual(wid.callback_called, 1)
|
||
|
|
wid.width = 900
|
||
|
|
self.assertEqual(wid.callback_called, 2)
|
||
|
|
wid.right = 700
|
||
|
|
self.assertEqual(wid.callback_called, 3)
|
||
|
|
wid.right = 700
|
||
|
|
self.assertEqual(wid.callback_called, 3)
|
||
|
|
|
||
|
|
|
||
|
|
@pytest.mark.parametrize('watch_before_use', [True, False])
|
||
|
|
def test_alias_property_with_force_dispatch_true(self, watch_before_use):
|
||
|
|
from kivy.properties import AliasProperty
|
||
|
|
|
||
|
|
class CustomAlias(EventDispatcher):
|
||
|
|
|
||
|
|
def _get_prop(self):
|
||
|
|
self.getter_called += 1
|
||
|
|
|
||
|
|
def _set_prop(self, value):
|
||
|
|
self.setter_called += 1
|
||
|
|
|
||
|
|
prop = AliasProperty(
|
||
|
|
_get_prop, _set_prop, force_dispatch=True,
|
||
|
|
watch_before_use=watch_before_use)
|
||
|
|
|
||
|
|
def __init__(self, **kwargs):
|
||
|
|
super(CustomAlias, self).__init__(**kwargs)
|
||
|
|
self.getter_called = 0
|
||
|
|
self.setter_called = 0
|
||
|
|
self.callback_called = 0
|
||
|
|
|
||
|
|
def callback(widget, value):
|
||
|
|
widget.callback_called += 1
|
||
|
|
|
||
|
|
# Initial checks
|
||
|
|
wid = CustomAlias()
|
||
|
|
wid.bind(prop=callback)
|
||
|
|
self.assertEqual(wid.getter_called, 0)
|
||
|
|
self.assertEqual(wid.setter_called, 0)
|
||
|
|
self.assertEqual(wid.callback_called, 0)
|
||
|
|
|
||
|
|
# Set property, should call setter to set the value and getter to
|
||
|
|
# to get the value for dispatch call
|
||
|
|
wid.prop = 1
|
||
|
|
self.assertEqual(wid.getter_called, 1)
|
||
|
|
self.assertEqual(wid.setter_called, 1)
|
||
|
|
self.assertEqual(wid.callback_called, 1)
|
||
|
|
|
||
|
|
# Set property to same value as before, setter and getter and callback
|
||
|
|
# are called
|
||
|
|
wid.prop = 1
|
||
|
|
self.assertEqual(wid.getter_called, 2)
|
||
|
|
self.assertEqual(wid.setter_called, 2)
|
||
|
|
self.assertEqual(wid.callback_called, 2)
|
||
|
|
|
||
|
|
|
||
|
|
@pytest.mark.parametrize('watch_before_use', [True, False])
|
||
|
|
def test_alias_property_cache_true_with_bind(self, watch_before_use):
|
||
|
|
from kivy.properties import NumericProperty, AliasProperty
|
||
|
|
|
||
|
|
class CustomAlias(EventDispatcher):
|
||
|
|
|
||
|
|
base_value = NumericProperty(1)
|
||
|
|
|
||
|
|
def _get_prop(self):
|
||
|
|
self.getter_called += 1
|
||
|
|
return self.base_value * 2
|
||
|
|
|
||
|
|
def _set_prop(self, value):
|
||
|
|
self.base_value = value / 2
|
||
|
|
|
||
|
|
prop = AliasProperty(_get_prop, _set_prop,
|
||
|
|
bind=('base_value',),
|
||
|
|
cache=True, watch_before_use=watch_before_use)
|
||
|
|
|
||
|
|
def __init__(self, **kwargs):
|
||
|
|
super(CustomAlias, self).__init__(**kwargs)
|
||
|
|
self.getter_called = 0
|
||
|
|
|
||
|
|
# Initial checks
|
||
|
|
wid = CustomAlias()
|
||
|
|
self.assertEqual(wid.getter_called, 0)
|
||
|
|
self.assertEqual(wid.base_value, 1)
|
||
|
|
self.assertEqual(wid.getter_called, 0)
|
||
|
|
|
||
|
|
# Change the base value, should trigger an update for the cache
|
||
|
|
wid.base_value = 4
|
||
|
|
self.assertEqual(wid.getter_called, int(watch_before_use))
|
||
|
|
|
||
|
|
# Now read the value again, should use the cache
|
||
|
|
self.assertEqual(wid.prop, 8)
|
||
|
|
self.assertEqual(wid.getter_called, 1)
|
||
|
|
|
||
|
|
# Change the prop itself, should trigger an update for the cache
|
||
|
|
wid.prop = 4
|
||
|
|
self.assertEqual(wid.getter_called, 2)
|
||
|
|
self.assertEqual(wid.base_value, 2)
|
||
|
|
self.assertEqual(wid.prop, 4)
|
||
|
|
self.assertEqual(wid.getter_called, 2)
|
||
|
|
|
||
|
|
|
||
|
|
@pytest.mark.parametrize('watch_before_use', [True, False])
|
||
|
|
def test_alias_property_cache_true_force_dispatch_true(self, watch_before_use):
|
||
|
|
from kivy.properties import AliasProperty
|
||
|
|
|
||
|
|
class CustomAlias(EventDispatcher):
|
||
|
|
|
||
|
|
def _get_prop(self):
|
||
|
|
self.getter_called += 1
|
||
|
|
return self.base_value * 2
|
||
|
|
|
||
|
|
def _set_prop(self, value):
|
||
|
|
self.setter_called += 1
|
||
|
|
self.base_value = value / 2
|
||
|
|
return True
|
||
|
|
|
||
|
|
prop = AliasProperty(
|
||
|
|
_get_prop, _set_prop, cache=True, force_dispatch=True,
|
||
|
|
watch_before_use=watch_before_use)
|
||
|
|
|
||
|
|
def __init__(self, **kwargs):
|
||
|
|
super(CustomAlias, self).__init__(**kwargs)
|
||
|
|
self.base_value = 1
|
||
|
|
self.getter_called = 0
|
||
|
|
self.setter_called = 0
|
||
|
|
self.callback_called = 0
|
||
|
|
|
||
|
|
def callback(widget, value):
|
||
|
|
widget.callback_called += 1
|
||
|
|
|
||
|
|
wid = CustomAlias()
|
||
|
|
wid.bind(prop=callback)
|
||
|
|
|
||
|
|
# Initial checks
|
||
|
|
self.assertEqual(wid.base_value, 1)
|
||
|
|
self.assertEqual(wid.getter_called, 0)
|
||
|
|
self.assertEqual(wid.setter_called, 0)
|
||
|
|
self.assertEqual(wid.callback_called, 0)
|
||
|
|
|
||
|
|
# Set alias property some value, should call setter and then getter to
|
||
|
|
# pass the value to callback
|
||
|
|
wid.prop = 16
|
||
|
|
self.assertEqual(wid.base_value, 8)
|
||
|
|
self.assertEqual(wid.getter_called, 1)
|
||
|
|
self.assertEqual(wid.setter_called, 1)
|
||
|
|
self.assertEqual(wid.callback_called, 1)
|
||
|
|
|
||
|
|
# Same as the step above, should call setter, getter and callback
|
||
|
|
wid.prop = 16
|
||
|
|
self.assertEqual(wid.base_value, 8)
|
||
|
|
self.assertEqual(wid.getter_called, 2)
|
||
|
|
self.assertEqual(wid.setter_called, 2)
|
||
|
|
self.assertEqual(wid.callback_called, 2)
|
||
|
|
|
||
|
|
# Get the value of property, should use cached value
|
||
|
|
value = wid.prop
|
||
|
|
self.assertEqual(value, 16)
|
||
|
|
self.assertEqual(wid.getter_called, 2)
|
||
|
|
self.assertEqual(wid.setter_called, 2)
|
||
|
|
self.assertEqual(wid.callback_called, 2)
|
||
|
|
|
||
|
|
|
||
|
|
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_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_numeric_property_dp(kivy_metrics):
|
||
|
|
from kivy.event import EventDispatcher
|
||
|
|
from kivy.properties import NumericProperty
|
||
|
|
kivy_metrics.density = 1
|
||
|
|
|
||
|
|
class Number(EventDispatcher):
|
||
|
|
|
||
|
|
with_dp = NumericProperty(5)
|
||
|
|
|
||
|
|
no_dp = NumericProperty(10)
|
||
|
|
|
||
|
|
default_dp = NumericProperty('10dp')
|
||
|
|
|
||
|
|
number = Number()
|
||
|
|
counter = {'with_dp': 0, 'no_dp': 0, 'default_dp': 0}
|
||
|
|
|
||
|
|
def callback(name, *args):
|
||
|
|
counter[name] += 1
|
||
|
|
|
||
|
|
number.fbind('with_dp', callback, 'with_dp')
|
||
|
|
number.fbind('no_dp', callback, 'no_dp')
|
||
|
|
number.fbind('default_dp', callback, 'default_dp')
|
||
|
|
|
||
|
|
assert not counter['with_dp']
|
||
|
|
assert not counter['no_dp']
|
||
|
|
assert not counter['default_dp']
|
||
|
|
assert number.with_dp == 5
|
||
|
|
assert number.no_dp == 10
|
||
|
|
assert number.default_dp == 10
|
||
|
|
|
||
|
|
number.with_dp = 10
|
||
|
|
assert counter['with_dp'] == 1
|
||
|
|
assert number.with_dp == 10
|
||
|
|
|
||
|
|
kivy_metrics.density = 2
|
||
|
|
|
||
|
|
assert counter['with_dp'] == 1
|
||
|
|
assert not counter['no_dp']
|
||
|
|
assert counter['default_dp'] == 1
|
||
|
|
assert number.with_dp == 10
|
||
|
|
assert number.no_dp == 10
|
||
|
|
assert number.default_dp == 20
|
||
|
|
|
||
|
|
number.with_dp = '20dp'
|
||
|
|
number.no_dp = 20
|
||
|
|
|
||
|
|
assert counter['with_dp'] == 2
|
||
|
|
assert counter['no_dp'] == 1
|
||
|
|
assert counter['default_dp'] == 1
|
||
|
|
assert number.with_dp == 40
|
||
|
|
assert number.no_dp == 20
|
||
|
|
assert number.default_dp == 20
|
||
|
|
|
||
|
|
kivy_metrics.density = 1
|
||
|
|
|
||
|
|
assert counter['with_dp'] == 3
|
||
|
|
assert counter['no_dp'] == 1
|
||
|
|
assert counter['default_dp'] == 2
|
||
|
|
assert number.with_dp == 20
|
||
|
|
assert number.no_dp == 20
|
||
|
|
assert number.default_dp == 10
|
||
|
|
|
||
|
|
|
||
|
|
def test_variable_list_property_dp_default(kivy_metrics):
|
||
|
|
from kivy.event import EventDispatcher
|
||
|
|
from kivy.properties import VariableListProperty
|
||
|
|
kivy_metrics.density = 1
|
||
|
|
|
||
|
|
class Number(EventDispatcher):
|
||
|
|
|
||
|
|
a = VariableListProperty(['10dp', (20, 'dp'), 3, 4.0])
|
||
|
|
|
||
|
|
number = Number()
|
||
|
|
counter = 0
|
||
|
|
|
||
|
|
def callback(name, *args):
|
||
|
|
nonlocal counter
|
||
|
|
counter += 1
|
||
|
|
|
||
|
|
number.fbind('a', callback)
|
||
|
|
assert list(number.a) == [10, 20, 3, 4]
|
||
|
|
assert not counter
|
||
|
|
|
||
|
|
kivy_metrics.density = 2
|
||
|
|
|
||
|
|
assert counter == 1
|
||
|
|
assert list(number.a) == [20, 40, 3, 4]
|
||
|
|
|
||
|
|
kivy_metrics.density = 1
|
||
|
|
|
||
|
|
assert counter == 2
|
||
|
|
assert list(number.a) == [10, 20, 3, 4]
|
||
|
|
|
||
|
|
|
||
|
|
def test_variable_list_property_dp(kivy_metrics):
|
||
|
|
from kivy.event import EventDispatcher
|
||
|
|
from kivy.properties import VariableListProperty
|
||
|
|
kivy_metrics.density = 1
|
||
|
|
|
||
|
|
class Number(EventDispatcher):
|
||
|
|
|
||
|
|
a = VariableListProperty([0, 20, 3, 4])
|
||
|
|
|
||
|
|
number = Number()
|
||
|
|
counter = 0
|
||
|
|
|
||
|
|
def callback(name, *args):
|
||
|
|
nonlocal counter
|
||
|
|
counter += 1
|
||
|
|
|
||
|
|
number.fbind('a', callback)
|
||
|
|
assert list(number.a) == [0, 20, 3, 4]
|
||
|
|
assert not counter
|
||
|
|
|
||
|
|
number.a = ['10dp', (20, 'dp'), 3, 4.0]
|
||
|
|
assert list(number.a) == [10, 20, 3, 4]
|
||
|
|
assert counter == 1
|
||
|
|
|
||
|
|
kivy_metrics.density = 2
|
||
|
|
|
||
|
|
assert counter == 2
|
||
|
|
assert list(number.a) == [20, 40, 3, 4]
|
||
|
|
|
||
|
|
kivy_metrics.density = 1
|
||
|
|
|
||
|
|
assert counter == 3
|
||
|
|
assert list(number.a) == [10, 20, 3, 4]
|
||
|
|
|
||
|
|
|
||
|
|
def test_property_duplicate_name():
|
||
|
|
from kivy.event import EventDispatcher
|
||
|
|
from kivy.properties import ObjectProperty
|
||
|
|
|
||
|
|
class Event(EventDispatcher):
|
||
|
|
|
||
|
|
a = ObjectProperty(5)
|
||
|
|
|
||
|
|
event = Event()
|
||
|
|
counter = 0
|
||
|
|
counter2 = 0
|
||
|
|
|
||
|
|
def callback(*args):
|
||
|
|
nonlocal counter
|
||
|
|
counter += 1
|
||
|
|
|
||
|
|
def callback2(*args):
|
||
|
|
nonlocal counter2
|
||
|
|
counter2 += 1
|
||
|
|
|
||
|
|
event.fbind('a', callback)
|
||
|
|
|
||
|
|
event.create_property('a', None)
|
||
|
|
event.fbind('a', callback2)
|
||
|
|
|
||
|
|
event.a = 12
|
||
|
|
assert not counter
|
||
|
|
assert counter2 == 1
|
||
|
|
|
||
|
|
|
||
|
|
def test_property_rename_duplicate():
|
||
|
|
from kivy.event import EventDispatcher
|
||
|
|
from kivy.properties import ObjectProperty
|
||
|
|
|
||
|
|
class Event(EventDispatcher):
|
||
|
|
|
||
|
|
b = ObjectProperty(5)
|
||
|
|
a = b
|
||
|
|
|
||
|
|
event = Event()
|
||
|
|
counter = 0
|
||
|
|
counter2 = 0
|
||
|
|
|
||
|
|
def callback(*args):
|
||
|
|
nonlocal counter
|
||
|
|
counter += 1
|
||
|
|
|
||
|
|
def callback2(*args):
|
||
|
|
nonlocal counter2
|
||
|
|
counter2 += 1
|
||
|
|
|
||
|
|
event.fbind('a', callback)
|
||
|
|
event.fbind('b', callback2)
|
||
|
|
|
||
|
|
event.a = 12
|
||
|
|
assert counter == 1
|
||
|
|
assert counter2 == 1
|
||
|
|
assert event.a == 12
|
||
|
|
assert event.b == 12
|
||
|
|
|
||
|
|
event.b = 14
|
||
|
|
assert counter == 2
|
||
|
|
assert counter2 == 2
|
||
|
|
assert event.a == 14
|
||
|
|
assert event.b == 14
|
||
|
|
|
||
|
|
|
||
|
|
def test_override_prop_inheritance():
|
||
|
|
from kivy.event import EventDispatcher
|
||
|
|
from kivy.properties import ObjectProperty, AliasProperty
|
||
|
|
counter = 0
|
||
|
|
|
||
|
|
class Parent(EventDispatcher):
|
||
|
|
|
||
|
|
prop = ObjectProperty()
|
||
|
|
|
||
|
|
class Child(Parent):
|
||
|
|
|
||
|
|
def inc(self, *args):
|
||
|
|
nonlocal counter
|
||
|
|
counter += 1
|
||
|
|
return counter
|
||
|
|
|
||
|
|
prop = AliasProperty(inc)
|
||
|
|
|
||
|
|
parent = Parent()
|
||
|
|
child = Child()
|
||
|
|
|
||
|
|
parent.prop = 44
|
||
|
|
assert parent.prop == 44
|
||
|
|
assert counter == 0
|
||
|
|
assert child.prop == 1
|
||
|
|
assert counter == 1
|
||
|
|
assert parent.prop == 44
|
||
|
|
assert isinstance(parent.property('prop'), ObjectProperty)
|
||
|
|
assert isinstance(child.property('prop'), AliasProperty)
|
||
|
|
|
||
|
|
|
||
|
|
@pytest.mark.parametrize('by_val', [True, False])
|
||
|
|
def test_manually_create_property(by_val):
|
||
|
|
from kivy.event import EventDispatcher
|
||
|
|
from kivy.properties import StringProperty
|
||
|
|
|
||
|
|
class Event(EventDispatcher):
|
||
|
|
pass
|
||
|
|
|
||
|
|
event = Event()
|
||
|
|
assert not hasattr(event, 'a')
|
||
|
|
if by_val:
|
||
|
|
event.create_property('a', 'hello')
|
||
|
|
else:
|
||
|
|
event.apply_property(a=StringProperty('hello'))
|
||
|
|
args = 0
|
||
|
|
|
||
|
|
def callback(obj, val):
|
||
|
|
nonlocal args
|
||
|
|
args = obj, val
|
||
|
|
|
||
|
|
event.fbind('a', callback)
|
||
|
|
assert event.a == 'hello'
|
||
|
|
event.a = 'bye'
|
||
|
|
assert event.a == 'bye'
|
||
|
|
assert args == (event, 'bye')
|
||
|
|
|
||
|
|
event2 = Event()
|
||
|
|
assert event2.a == 'hello'
|
||
|
|
event2.fbind('a', callback)
|
||
|
|
event2.a = 'goodbye'
|
||
|
|
assert event2.a == 'goodbye'
|
||
|
|
assert args == (event2, 'goodbye')
|
||
|
|
|
||
|
|
|
||
|
|
def test_inherit_property():
|
||
|
|
from kivy.event import EventDispatcher
|
||
|
|
from kivy.properties import StringProperty
|
||
|
|
|
||
|
|
class Event(EventDispatcher):
|
||
|
|
|
||
|
|
a = StringProperty('hello')
|
||
|
|
|
||
|
|
class Event2(Event):
|
||
|
|
|
||
|
|
b = StringProperty('hello2')
|
||
|
|
|
||
|
|
event = Event2()
|
||
|
|
args = 0
|
||
|
|
|
||
|
|
def callback(obj, val):
|
||
|
|
nonlocal args
|
||
|
|
args = obj, val
|
||
|
|
|
||
|
|
event.fbind('a', callback)
|
||
|
|
event.fbind('b', callback)
|
||
|
|
assert event.a == 'hello'
|
||
|
|
assert event.b == 'hello2'
|
||
|
|
|
||
|
|
event.a = 'bye'
|
||
|
|
assert event.a == 'bye'
|
||
|
|
assert args == (event, 'bye')
|
||
|
|
|
||
|
|
event.b = 'goodbye'
|
||
|
|
assert event.b == 'goodbye'
|
||
|
|
assert args == (event, 'goodbye')
|
||
|
|
|
||
|
|
|
||
|
|
def test_unknown_property():
|
||
|
|
from kivy.properties import NumericProperty
|
||
|
|
|
||
|
|
class MyWidget(EventDispatcher):
|
||
|
|
width = NumericProperty(0)
|
||
|
|
|
||
|
|
with pytest.raises(TypeError) as cm:
|
||
|
|
MyWidget(width=12, unkn="abc")
|
||
|
|
assert "Properties ['unkn'] passed to __init__ may not be existing " \
|
||
|
|
"property names. Valid properties are ['width']" \
|
||
|
|
== str(cm.value)
|
||
|
|
|
||
|
|
|
||
|
|
def test_known_property_multiple_inheritance():
|
||
|
|
|
||
|
|
class Behavior:
|
||
|
|
def __init__(self, name):
|
||
|
|
print(f'Behavior: {self}, name={name}')
|
||
|
|
super().__init__()
|
||
|
|
|
||
|
|
class Widget2(Behavior, EventDispatcher):
|
||
|
|
pass
|
||
|
|
|
||
|
|
class Widget3(EventDispatcher, Behavior):
|
||
|
|
pass
|
||
|
|
|
||
|
|
with pytest.raises(TypeError) as cm:
|
||
|
|
EventDispatcher(name='Pasta')
|
||
|
|
assert "Properties ['name'] passed to __init__ may not be existing" \
|
||
|
|
in str(cm.value)
|
||
|
|
|
||
|
|
Widget2(name='Pasta') # does not raise a ValueError
|
||
|
|
Widget3(name='Pasta') # does not raise a ValueError
|
||
|
|
|
||
|
|
|
||
|
|
def test_pass_other_typeerror():
|
||
|
|
|
||
|
|
class Behavior:
|
||
|
|
def __init__(self, name):
|
||
|
|
super().__init__()
|
||
|
|
raise TypeError("this is a typeerror unrelated to object")
|
||
|
|
|
||
|
|
class Widget2(Behavior, EventDispatcher):
|
||
|
|
pass
|
||
|
|
|
||
|
|
class Widget3(EventDispatcher, Behavior):
|
||
|
|
pass
|
||
|
|
|
||
|
|
for cls in [Widget2, Widget3]:
|
||
|
|
with pytest.raises(TypeError) as cm:
|
||
|
|
cls(name='Pasta')
|
||
|
|
assert "this is a typeerror unrelated to object" == str(cm.value)
|
||
|
|
|
||
|
|
|
||
|
|
def test_object_init_error(): # the above 3 test rely on this
|
||
|
|
class TestCls(object):
|
||
|
|
def __init__(self, **kwargs):
|
||
|
|
super(TestCls, self).__init__(**kwargs)
|
||
|
|
|
||
|
|
with pytest.raises(TypeError) as cm:
|
||
|
|
TestCls(name='foo')
|
||
|
|
assert str(cm.value).startswith("object.__init__() takes")
|