bpo-30870: IDLE: Add configdialog fontlist unittest by mlouielu · Pull Request #2666 · python/cpython

the-knights-who-say-ni

Appveyor, running on Windows, and my Win 10 machine, say:

FAIL: test_key_up_down_should_change_font_and_sample (idlelib.idle_test.test_configdialog.FontTabTest)
Traceback (most recent call last):
File "C:\projects\cpython\lib\idlelib\idle_test\test_configdialog.py", line 100, in test_key_up_down_should_change_font_and_sample
self.assertNotEqual(down_font, font)
AssertionError: 'Courier New' == 'Courier New'
EDIT
These look the same to me, so this test should fail.
print('\n', [ord(c) for c in down_font], '\n', [ord(c) for c in font])
I will try to figure out why OS should make a difference, and what is going on on Windows.