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61 lines
1.7 KiB
61 lines
1.7 KiB
"Test tree. coverage 56%."
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from idlelib import tree
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import unittest
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from test.support import requires
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requires('gui')
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from tkinter import Tk, EventType, SCROLL
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class TreeTest(unittest.TestCase):
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@classmethod
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def setUpClass(cls):
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cls.root = Tk()
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cls.root.withdraw()
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@classmethod
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def tearDownClass(cls):
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cls.root.destroy()
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del cls.root
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def test_init(self):
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# Start with code slightly adapted from htest.
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sc = tree.ScrolledCanvas(
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self.root, bg="white", highlightthickness=0, takefocus=1)
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sc.frame.pack(expand=1, fill="both", side='left')
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item = tree.FileTreeItem(tree.ICONDIR)
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node = tree.TreeNode(sc.canvas, None, item)
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node.expand()
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class TestScrollEvent(unittest.TestCase):
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def test_wheel_event(self):
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# Fake widget class containing `yview` only.
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class _Widget:
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def __init__(widget, *expected):
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widget.expected = expected
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def yview(widget, *args):
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self.assertTupleEqual(widget.expected, args)
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# Fake event class
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class _Event:
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pass
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# (type, delta, num, amount)
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tests = ((EventType.MouseWheel, 120, -1, -5),
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(EventType.MouseWheel, -120, -1, 5),
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(EventType.ButtonPress, -1, 4, -5),
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(EventType.ButtonPress, -1, 5, 5))
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event = _Event()
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for ty, delta, num, amount in tests:
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event.type = ty
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event.delta = delta
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event.num = num
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res = tree.wheel_event(event, _Widget(SCROLL, amount, "units"))
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self.assertEqual(res, "break")
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if __name__ == '__main__':
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unittest.main(verbosity=2)
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