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-rw-r--r--Lib/test/test_tkinter/test_misc.py9
1 files changed, 9 insertions, 0 deletions
diff --git a/Lib/test/test_tkinter/test_misc.py b/Lib/test/test_tkinter/test_misc.py
index d9ea642..b0b9ed6 100644
--- a/Lib/test/test_tkinter/test_misc.py
+++ b/Lib/test/test_tkinter/test_misc.py
@@ -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):