Files
cpython/Lib/test/test_tkinter
Miss Islington (bot) dbc9b686e0 [3.15] gh-126219: Fix crash in tkinter.Tk with non-BMP className on Tcl/Tk 8.x (GH-151980) (GH-152045)
Tcl 8.x crashes when title-casing a non-BMP character during Tk
initialization, so such a className is now rejected with a ValueError.
(cherry picked from commit 124c7cd91b)

Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>
2026-06-24 06:32:05 +00:00
..

Writing new tests
=================

Precaution
----------

    New tests should always use only one Tk window at once, like all the
    current tests do. This means that you have to destroy the current window
    before creating another one, and clean up after the test. The motivation
    behind this is that some tests may depend on having its window focused
    while it is running to work properly, and it may be hard to force focus
    on your window across platforms (right now only test_traversal at
    test_ttk.test_widgets.NotebookTest depends on this).