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bpo-45496: Allow flexibility in winfo_rgb tests (GH-30185)

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E-Paine 2021-12-26 11:28:24 +00:00 committed by GitHub
parent ad4857884b
commit 2e3e0d23ad
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1 changed files with 9 additions and 2 deletions
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11
Lib/tkinter/test/test_tkinter/test_misc.py
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@ -201,6 +201,13 @@ class MiscTest(AbstractTkTest, unittest.TestCase):
root.clipboard_get()
def test_winfo_rgb(self):
def assertApprox(col1, col2):
# A small amount of flexibility is required (bpo-45496)
# 33 is ~0.05% of 65535, which is a reasonable margin
for col1_channel, col2_channel in zip(col1, col2):
self.assertAlmostEqual(col1_channel, col2_channel, delta=33)
root = self.root
rgb = root.winfo_rgb
@ -210,9 +217,9 @@ class MiscTest(AbstractTkTest, unittest.TestCase):
# #RGB - extends each 4-bit hex value to be 16-bit.
self.assertEqual(rgb('#F0F'), (0xFFFF, 0x0000, 0xFFFF))
# #RRGGBB - extends each 8-bit hex value to be 16-bit.
self.assertEqual(rgb('#4a3c8c'), (0x4a4a, 0x3c3c, 0x8c8c))
assertApprox(rgb('#4a3c8c'), (0x4a4a, 0x3c3c, 0x8c8c))
# #RRRRGGGGBBBB
self.assertEqual(rgb('#dede14143939'), (0xdede, 0x1414, 0x3939))
assertApprox(rgb('#dede14143939'), (0xdede, 0x1414, 0x3939))
# Invalid string.
with self.assertRaises(tkinter.TclError):
rgb('#123456789a')