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patch 8.0.0482: the setbufvar() function may mess up the window layout

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Problem:    The setbufvar() function may mess up the window layout. (Kay Z.)
Solution:   Do not check the window to be valid if it is NULL.
This commit is contained in:
Bram Moolenaar
2017-03-18 22:35:30 +01:00
parent aab93b12cb
commit 2c90d51123
3 changed files with 34 additions and 1 deletions
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31
src/testdir/test_functions.vim
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@@ -725,3 +725,34 @@ func Test_balloon_show()
call balloon_show('hi!')
endif
endfunc
func Test_setbufvar_options()
" This tests that aucmd_prepbuf() and aucmd_restbuf() properly restore the
" window layout.
call assert_equal(1, winnr('$'))
split dummy_preview
resize 2
set winfixheight winfixwidth
let prev_id = win_getid()
wincmd j
let wh = winheight('.')
let dummy_buf = bufnr('dummy_buf1', v:true)
call setbufvar(dummy_buf, '&buftype', 'nofile')
execute 'belowright vertical split #' . dummy_buf
call assert_equal(wh, winheight('.'))
let dum1_id = win_getid()
wincmd h
let wh = winheight('.')
let dummy_buf = bufnr('dummy_buf2', v:true)
call setbufvar(dummy_buf, '&buftype', 'nofile')
execute 'belowright vertical split #' . dummy_buf
call assert_equal(wh, winheight('.'))
bwipe!
call win_gotoid(prev_id)
bwipe!
call win_gotoid(dum1_id)
bwipe!
endfunc