121 lines
4.0 KiB
Python
121 lines
4.0 KiB
Python
'''
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uix.stacklayout tests
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=====================
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'''
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import unittest
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from kivy.uix.stacklayout import StackLayout
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from kivy.uix.widget import Widget
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class UixStackLayoutTest(unittest.TestCase):
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def test_stacklayout_no_children(self):
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sl = StackLayout()
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sl.do_layout()
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def test_stacklayout_default(self):
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# Default orientation is lr-tb.
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sl = StackLayout()
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wgts = [Widget(size_hint=(.5, .5)) for i in range(4)]
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for wgt in wgts:
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sl.add_widget(wgt)
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sl.do_layout()
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self.assertEqual(wgts[0].pos, [0, sl.height / 2.])
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self.assertEqual(wgts[1].pos, [sl.width / 2., sl.height / 2.])
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self.assertEqual(wgts[2].pos, [0, 0])
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self.assertEqual(wgts[3].pos, [sl.width / 2., 0])
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def test_stacklayout_fixed_size(self):
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sl = StackLayout()
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wgts = [Widget(size=(50, 50), size_hint=(None, None))
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for i in range(4)]
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for wgt in wgts:
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sl.add_widget(wgt)
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sl.do_layout()
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self.assertEqual(wgts[0].pos, [0, sl.height / 2.])
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self.assertEqual(wgts[1].pos, [sl.width / 2., sl.height / 2.])
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self.assertEqual(wgts[2].pos, [0, 0])
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self.assertEqual(wgts[3].pos, [sl.width / 2., 0])
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def test_stacklayout_orientation_btrl(self):
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# Default orientation is lr-tb.
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sl = StackLayout()
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wgts = [Widget(size_hint=(.5, .5)) for i in range(4)]
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for wgt in wgts:
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sl.add_widget(wgt)
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sl.orientation = 'bt-rl'
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sl.do_layout()
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self.assertEqual(wgts[0].pos, [sl.width / 2., 0])
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self.assertEqual(wgts[1].pos, [sl.width / 2., sl.height / 2.])
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self.assertEqual(wgts[2].pos, [0, 0])
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self.assertEqual(wgts[3].pos, [0, sl.height / 2.])
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def test_stacklayout_orientation_rlbt(self):
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# Default orientation is lr-tb.
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sl = StackLayout()
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wgts = [Widget(size_hint=(.5, .5)) for i in range(4)]
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for wgt in wgts:
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sl.add_widget(wgt)
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sl.orientation = 'rl-bt'
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sl.do_layout()
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self.assertEqual(wgts[0].pos, [sl.width / 2., 0])
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self.assertEqual(wgts[1].pos, [0, 0])
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self.assertEqual(wgts[2].pos, [sl.width / 2., sl.height / 2.])
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self.assertEqual(wgts[3].pos, [0, sl.height / 2.])
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def test_stacklayout_padding(self):
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sl = StackLayout()
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wgts = [Widget(size_hint=(.5, .5)) for i in range(4)]
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for wgt in wgts:
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sl.add_widget(wgt)
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sl.padding = 5.
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sl.do_layout()
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self.assertEqual(wgts[0].pos, [5., sl.height / 2.])
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self.assertEqual(wgts[1].pos, [sl.width / 2., sl.height / 2.])
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self.assertEqual(wgts[2].pos, [5., 5.])
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self.assertEqual(wgts[3].pos, [sl.width / 2., 5.])
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def test_stacklayout_spacing(self):
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sl = StackLayout()
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wgts = [Widget(size_hint=(.5, .5)) for i in range(4)]
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for wgt in wgts:
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sl.add_widget(wgt)
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sl.spacing = 10
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sl.do_layout()
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self.assertEqual(wgts[0].pos, [0, sl.height / 2.])
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self.assertEqual(wgts[1].pos, [sl.width / 2. + 5, sl.height / 2.])
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self.assertEqual(wgts[2].pos, [0, -10])
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self.assertEqual(wgts[3].pos, [sl.width / 2. + 5, -10])
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def test_stacklayout_overflow(self):
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sl = StackLayout()
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wgts = [Widget(size_hint=(.2 * i, .2 * i)) for i in range(1, 4)]
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for wgt in wgts:
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sl.add_widget(wgt)
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sl.padding = 5
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sl.spacing = 5
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sl.do_layout()
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self.assertEqual(wgts[0].pos, [5, 77])
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self.assertEqual(wgts[1].pos, [27, 59])
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# floating point error, requires almost equal
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self.assertAlmostEqual(wgts[2].pos[0], 5)
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self.assertAlmostEqual(wgts[2].pos[1], 0)
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def test_stacklayout_nospace(self):
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# happens when padding is too big
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sl = StackLayout()
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wgts = [Widget(size_hint=(1., .25)) for i in range(1, 4)]
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for wgt in wgts:
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sl.add_widget(wgt)
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sl.padding = 10
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sl.do_layout()
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