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patch 9.0.1543: display errors when making topline shorter

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Problem:    Display errors when making topline shorter and 'smoothscroll' is
            set.
Solution:   Reset w_skipcol when the topline becomes shorter than its current
            value. (Luuk van Baal, closes #12367)
This commit is contained in:
Luuk van Baal
2023-05-11 19:24:20 +01:00
committed by Bram Moolenaar
parent 6c018680be
commit 5d01f86d99
10 changed files with 77 additions and 14 deletions
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7
src/testdir/test_scroll_opt.vim
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@@ -335,9 +335,12 @@ func Test_smoothscroll_wrap_long_line()
" than one window. Note that the cursor is at the bottom this time because
" Vim prefers to do so if we are scrolling a few lines only.
call term_sendkeys(buf, ":call setline(1, ['one', 'two', 'Line' .. (' with lots of text'->repeat(10)) .. ' end', 'four'])\<CR>")
" Currently visible lines were replaced, test that the lines and cursor
" are correctly displayed.
call VerifyScreenDump(buf, 'Test_smooth_long_14', {})
call term_sendkeys(buf, "3Gzt")
call term_sendkeys(buf, "j")
call VerifyScreenDump(buf, 'Test_smooth_long_14', {})
call VerifyScreenDump(buf, 'Test_smooth_long_15', {})
" Repeat the step but this time start it when the line is smooth-scrolled by
" one line. This tests that the offset calculation is still correct and
@@ -345,7 +348,7 @@ func Test_smoothscroll_wrap_long_line()
" screen.
call term_sendkeys(buf, "3Gzt")
call term_sendkeys(buf, "\<C-E>j")
call VerifyScreenDump(buf, 'Test_smooth_long_15', {})
call VerifyScreenDump(buf, 'Test_smooth_long_16', {})
call StopVimInTerminal(buf)
endfunc