Mercurial > vim
view src/testdir/test_unlet.vim @ 34379:37b4c89ba420 v9.1.0116
patch 9.1.0116: win_split_ins may not check available room
Commit: https://github.com/vim/vim/commit/0fd44a5ad81ade342cb54d8984965bdedd2272c8
Author: Sean Dewar <6256228+seandewar@users.noreply.github.com>
Date: Tue Feb 20 20:28:15 2024 +0100
patch 9.1.0116: win_split_ins may not check available room
Problem: win_split_ins has no check for E36 when moving an existing
window
Solution: check for room and fix the issues in f_win_splitmove()
(Sean Dewar)
win_split_ins has no check for E36 when moving an existing window,
allowing for layouts with many overlapping zero-sized windows to be
created (which may also cause drawing issues with tablines and such).
f_win_splitmove also has some bugs.
So check for room and fix the issues in f_win_splitmove. Handle failure
in the two relevant win_split_ins callers by restoring the original
layout, and factor the common logic into win_splitmove.
Don't check for room when opening an autocommand window, as it's a
temporary window that's rarely interacted with or drawn anyhow, and is
rather important for some autocommands.
Issues fixed in f_win_splitmove:
- Error if splitting is disallowed.
- Fix heap-use-after-frees if autocommands fired from switching to "targetwin"
close "wp" or "oldwin".
- Fix splitting the wrong window if autocommands fired from switching to
"targetwin" switch to a different window.
- Ensure -1 is returned for all errors.
Also handle allocation failure a bit earlier in make_snapshot (callers,
except win_splitmove, don't really care if a snapshot can't be made, so
just ignore the return value).
Note: Test_smoothscroll_in_zero_width_window failed after these changes with
E36, as it was using the previous behaviour to create a zero-width window.
I've fixed the test such that it fails with UBSAN as expected when v9.0.1367 is
reverted (and simplified it too).
related: #14042
Signed-off-by: Sean Dewar <6256228+seandewar@users.noreply.github.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
author | Christian Brabandt <cb@256bit.org> |
---|---|
date | Tue, 20 Feb 2024 22:30:04 +0100 |
parents | 0b35a7ffceb2 |
children |
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" Tests for :unlet func Test_read_only() " these caused a crash call assert_fails('unlet count', 'E795:') call assert_fails('unlet errmsg', 'E795:') endfunc func Test_existing() let does_exist = 1 call assert_true(exists('does_exist')) unlet does_exist call assert_false(exists('does_exist')) endfunc func Test_not_existing() unlet! does_not_exist call assert_fails('unlet does_not_exist', 'E108:') endfunc func Test_unlet_fails() call assert_fails('unlet v:["count"]', 'E46:') call assert_fails('unlet $', 'E475:') let v = {} call assert_fails('unlet v[:]', 'E719:') let l = [] call assert_fails("unlet l['k'", 'E111:') let d = {'k' : 1} call assert_fails("unlet d.k2", 'E716:') call assert_fails("unlet {a};", 'E488:') endfunc func Test_unlet_env() let envcmd = has('win32') ? 'set' : 'env' let $FOOBAR = 'test' let found = 0 for kv in split(system(envcmd), "\r*\n") if kv == 'FOOBAR=test' let found = 1 endif endfor call assert_equal(1, found) unlet $FOOBAR let found = 0 for kv in split(system(envcmd), "\r*\n") if kv == 'FOOBAR=test' let found = 1 endif endfor call assert_equal(0, found) unlet $MUST_NOT_BE_AN_ERROR endfunc func Test_unlet_complete() let g:FOOBAR = 1 call feedkeys(":unlet g:FOO\t\n", 'tx') call assert_true(!exists('g:FOOBAR')) let $FOOBAR = 1 call feedkeys(":unlet $FOO\t\n", 'tx') call assert_true(!exists('$FOOBAR') || empty($FOOBAR)) endfunc " vim: shiftwidth=2 sts=2 expandtab