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gh-119614: Fix truncation of strings with embedded null characters in Tkinter (GH-120909)

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Now the null character is always represented as \xc0\x80 for
Tcl_NewStringObj().
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Serhiy Storchaka 2024-06-24 12:17:25 +03:00 • committed by GitHub
parent fc297b4ba4
commit c38e2f64d0
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4 changed files with 68 additions and 7 deletions
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9
Lib/test/test_tkinter/test_misc.py
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@ -476,6 +476,15 @@ class MiscTest(AbstractTkTest, unittest.TestCase):
self.assertEqual(vi.micro, 0)
self.assertTrue(str(vi).startswith(f'{vi.major}.{vi.minor}'))
def test_embedded_null(self):
widget = tkinter.Entry(self.root)
widget.insert(0, 'abc\0def') # ASCII-only
widget.selection_range(0, 'end')
self.assertEqual(widget.selection_get(), 'abc\x00def')
widget.insert(0, '\u20ac\0') # non-ASCII
widget.selection_range(0, 'end')
self.assertEqual(widget.selection_get(), '\u20ac\0abc\x00def')
class WmTest(AbstractTkTest, unittest.TestCase):