Merge #11087 from janlazo/vim-8.1.0010

vim-patch:8.1.{10,230,315,330,514,517,518,1327,1347,1758,2072,2074,2091,2095,2103}

4 files changed, 289 insertions, 68 deletions

diff --git a/src/nvim/testdir/runtest.vim b/src/nvim/testdir/runtest.vim
index 593ce6fcdc..8f5f3f82e7 100644
--- a/src/nvim/testdir/runtest.vim
+++ b/src/nvim/testdir/runtest.vim
@@ -282,6 +282,7 @@ endif
 
 " Names of flaky tests.
 let s:flaky_tests = [
+      \ 'Test_autocmd_SafeState()',
       \ 'Test_cursorhold_insert()',
       \ 'Test_exit_callback_interval()',
       \ 'Test_map_timeout_with_timer_interrupt()',
diff --git a/src/nvim/testdir/test_normal.vim b/src/nvim/testdir/test_normal.vim
index 532beb9c39..b3e43640bb 100644
--- a/src/nvim/testdir/test_normal.vim
+++ b/src/nvim/testdir/test_normal.vim
@@ -2,12 +2,12 @@
 
 source shared.vim
 
-func! Setup_NewWindow()
+func Setup_NewWindow()
   10new
   call setline(1, range(1,100))
 endfunc
 
-func! MyFormatExpr()
+func MyFormatExpr()
   " Adds '->$' at lines having numbers followed by trailing whitespace
   for ln in range(v:lnum, v:lnum+v:count-1)
     let line = getline(ln)
@@ -17,7 +17,7 @@ func! MyFormatExpr()
   endfor
 endfunc
 
-func! CountSpaces(type, ...)
+func CountSpaces(type, ...)
   " for testing operatorfunc
   " will count the number of spaces
   " and return the result in g:a
@@ -37,7 +37,7 @@ func! CountSpaces(type, ...)
   let @@ = reg_save
 endfunc
 
-func! OpfuncDummy(type, ...)
+func OpfuncDummy(type, ...)
   " for testing operatorfunc
   let g:opt=&linebreak
 
@@ -81,7 +81,7 @@ fun! Test_normal00_optrans()
   bw!
 endfunc
 
-func! Test_normal01_keymodel()
+func Test_normal01_keymodel()
   call Setup_NewWindow()
   " Test 1: depending on 'keymodel' <s-down> does something different
   50
@@ -115,7 +115,7 @@ func! Test_normal01_keymodel()
   bw!
 endfunc
 
-func! Test_normal02_selectmode()
+func Test_normal02_selectmode()
   " some basic select mode tests
   call Setup_NewWindow()
   50
@@ -129,7 +129,7 @@ func! Test_normal02_selectmode()
   bw!
 endfunc
 
-func! Test_normal02_selectmode2()
+func Test_normal02_selectmode2()
   " some basic select mode tests
   call Setup_NewWindow()
   50
@@ -139,7 +139,7 @@ func! Test_normal02_selectmode2()
   bw!
 endfunc
 
-func! Test_normal03_join()
+func Test_normal03_join()
   " basic join test
   call Setup_NewWindow()
   50
@@ -159,7 +159,7 @@ func! Test_normal03_join()
   bw!
 endfunc
 
-func! Test_normal04_filter()
+func Test_normal04_filter()
   " basic filter test
   " only test on non windows platform
   if has('win32')
@@ -185,7 +185,7 @@ func! Test_normal04_filter()
   bw!
 endfunc
 
-func! Test_normal05_formatexpr()
+func Test_normal05_formatexpr()
   " basic formatexpr test
   call Setup_NewWindow()
   %d_
@@ -222,7 +222,7 @@ func Test_normal05_formatexpr_setopt()
   set formatexpr=
 endfunc
 
-func! Test_normal06_formatprg()
+func Test_normal06_formatprg()
   " basic test for formatprg
   " only test on non windows platform
   if has('win32')
@@ -256,7 +256,7 @@ func! Test_normal06_formatprg()
   call delete('Xsed_format.sh')
 endfunc
 
-func! Test_normal07_internalfmt()
+func Test_normal07_internalfmt()
   " basic test for internal formmatter to textwidth of 12
   let list=range(1,11)
   call map(list, 'v:val."    "')
@@ -270,7 +270,7 @@ func! Test_normal07_internalfmt()
   bw!
 endfunc
 
-func! Test_normal08_fold()
+func Test_normal08_fold()
   " basic tests for foldopen/folddelete
   if !has("folding")
     return
@@ -329,7 +329,7 @@ func! Test_normal08_fold()
   bw!
 endfunc
 
-func! Test_normal09_operatorfunc()
+func Test_normal09_operatorfunc()
   " Test operatorfunc
   call Setup_NewWindow()
   " Add some spaces for counting
@@ -359,7 +359,7 @@ func! Test_normal09_operatorfunc()
   bw!
 endfunc
 
-func! Test_normal09a_operatorfunc()
+func Test_normal09a_operatorfunc()
   " Test operatorfunc
   call Setup_NewWindow()
   " Add some spaces for counting
@@ -385,7 +385,7 @@ func! Test_normal09a_operatorfunc()
   unlet! g:opt
 endfunc
 
-func! Test_normal10_expand()
+func Test_normal10_expand()
   " Test for expand()
   10new
   call setline(1, ['1', 'ifooar,,cbar'])
@@ -420,7 +420,7 @@ func! Test_normal10_expand()
   bw!
 endfunc
 
-func! Test_normal11_showcmd()
+func Test_normal11_showcmd()
   " test for 'showcmd'
   10new
   exe "norm! ofoobar\<esc>"
@@ -435,7 +435,7 @@ func! Test_normal11_showcmd()
   bw!
 endfunc
 
-func! Test_normal12_nv_error()
+func Test_normal12_nv_error()
   " Test for nv_error
   10new
   call setline(1, range(1,5))
@@ -445,7 +445,7 @@ func! Test_normal12_nv_error()
   bw!
 endfunc
 
-func! Test_normal13_help()
+func Test_normal13_help()
   " Test for F1
   call assert_equal(1, winnr())
   call feedkeys("\<f1>", 'txi')
@@ -454,7 +454,7 @@ func! Test_normal13_help()
   bw!
 endfunc
 
-func! Test_normal14_page()
+func Test_normal14_page()
   " basic test for Ctrl-F and Ctrl-B
   call Setup_NewWindow()
   exe "norm! \<c-f>"
@@ -488,7 +488,7 @@ func! Test_normal14_page()
   bw!
 endfunc
 
-func! Test_normal14_page_eol()
+func Test_normal14_page_eol()
   10new
   norm oxxxxxxx
   exe "norm 2\<c-f>"
@@ -497,7 +497,7 @@ func! Test_normal14_page_eol()
   bw!
 endfunc
 
-func! Test_normal15_z_scroll_vert()
+func Test_normal15_z_scroll_vert()
   " basic test for z commands that scroll the window
   call Setup_NewWindow()
   100
@@ -586,7 +586,7 @@ func! Test_normal15_z_scroll_vert()
   bw!
 endfunc
 
-func! Test_normal16_z_scroll_hor()
+func Test_normal16_z_scroll_hor()
   " basic test for z commands that scroll the window
   10new
   15vsp
@@ -652,7 +652,7 @@ func! Test_normal16_z_scroll_hor()
   bw!
 endfunc
 
-func! Test_normal17_z_scroll_hor2()
+func Test_normal17_z_scroll_hor2()
   " basic test for z commands that scroll the window
   " using 'sidescrolloff' setting
   10new
@@ -719,7 +719,7 @@ func! Test_normal17_z_scroll_hor2()
   bw!
 endfunc
 
-func! Test_normal18_z_fold()
+func Test_normal18_z_fold()
   " basic tests for foldopen/folddelete
   if !has("folding")
     return
@@ -1090,7 +1090,7 @@ func! Test_normal18_z_fold()
   bw!
 endfunc
 
-func! Test_normal19_z_spell()
+func Test_normal19_z_spell()
   if !has("spell") || !has('syntax')
     return
   endif
@@ -1245,7 +1245,7 @@ func! Test_normal19_z_spell()
   bw!
 endfunc
 
-func! Test_normal20_exmode()
+func Test_normal20_exmode()
   if !has("unix")
     " Reading from redirected file doesn't work on MS-Windows
     return
@@ -1263,24 +1263,38 @@ func! Test_normal20_exmode()
   bw!
 endfunc
 
-func! Test_normal21_nv_hat()
-  set hidden
-  new
-  " to many buffers opened already, will not work
-  "call assert_fails(":b#", 'E23')
-  "call assert_equal('', @#)
-  e Xfoobar
-  e Xfile2
-  call feedkeys("\<c-^>", 't')
-  call assert_equal("Xfile2", fnamemodify(bufname('%'), ':t'))
-  call feedkeys("f\<c-^>", 't')
-  call assert_equal("Xfile2", fnamemodify(bufname('%'), ':t'))
-  " clean up
-  set nohidden
-  bw!
+func Test_normal21_nv_hat()
+
+  " Edit a fresh file and wipe the buffer list so that there is no alternate
+  " file present.  Next, check for the expected command failures.
+  edit Xfoo | %bw
+  call assert_fails(':buffer #', 'E86')
+  call assert_fails(':execute "normal! \<C-^>"', 'E23')
+
+  " Test for the expected behavior when switching between two named buffers.
+  edit Xfoo | edit Xbar
+  call feedkeys("\<C-^>", 'tx')
+  call assert_equal('Xfoo', fnamemodify(bufname('%'), ':t'))
+  call feedkeys("\<C-^>", 'tx')
+  call assert_equal('Xbar', fnamemodify(bufname('%'), ':t'))
+
+  " Test for the expected behavior when only one buffer is named.
+  enew | let l:nr = bufnr('%')
+  call feedkeys("\<C-^>", 'tx')
+  call assert_equal('Xbar', fnamemodify(bufname('%'), ':t'))
+  call feedkeys("\<C-^>", 'tx')
+  call assert_equal('', bufname('%'))
+  call assert_equal(l:nr, bufnr('%'))
+
+  " Test that no action is taken by "<C-^>" when an operator is pending.
+  edit Xfoo
+  call feedkeys("ci\<C-^>", 'tx')
+  call assert_equal('Xfoo', fnamemodify(bufname('%'), ':t'))
+
+  %bw!
 endfunc
 
-func! Test_normal22_zet()
+func Test_normal22_zet()
   " Test for ZZ
   " let shell = &shell
   " let &shell = 'sh'
@@ -1308,7 +1322,7 @@ func! Test_normal22_zet()
   " let &shell = shell
 endfunc
 
-func! Test_normal23_K()
+func Test_normal23_K()
   " Test for K command
   new
   call append(0, ['helphelp.txt', 'man', 'aa%bb', 'cc|dd'])
@@ -1373,7 +1387,7 @@ func! Test_normal23_K()
   bw!
 endfunc
 
-func! Test_normal24_rot13()
+func Test_normal24_rot13()
   " Testing for g?? g?g?
   new
   call append(0, 'abcdefghijklmnopqrstuvwxyzäüö')
@@ -1387,7 +1401,7 @@ func! Test_normal24_rot13()
   bw!
 endfunc
 
-func! Test_normal25_tag()
+func Test_normal25_tag()
   " Testing for CTRL-] g CTRL-] g]
   " CTRL-W g] CTRL-W CTRL-] CTRL-W g CTRL-]
   h
@@ -1454,7 +1468,7 @@ func! Test_normal25_tag()
   helpclose
 endfunc
 
-func! Test_normal26_put()
+func Test_normal26_put()
   " Test for ]p ]P [p and [P
   new
   call append(0, ['while read LINE', 'do', '  ((count++))', '  if [ $? -ne 0 ]; then', "    echo 'Error writing file'", '  fi', 'done'])
@@ -1473,7 +1487,7 @@ func! Test_normal26_put()
   bw!
 endfunc
 
-func! Test_normal27_bracket()
+func Test_normal27_bracket()
   " Test for [' [` ]' ]`
   call Setup_NewWindow()
   1,21s/.\+/  &   b/
@@ -1524,7 +1538,7 @@ func! Test_normal27_bracket()
   bw!
 endfunc
 
-func! Test_normal28_parenthesis()
+func Test_normal28_parenthesis()
   " basic testing for ( and )
   new
   call append(0, ['This is a test. With some sentences!', '', 'Even with a question? And one more. And no sentence here'])
@@ -1718,7 +1732,7 @@ fun! Test_normal31_r_cmd()
   bw!
 endfunc
 
-func! Test_normal32_g_cmd1()
+func Test_normal32_g_cmd1()
   " Test for g*, g#
   new
   call append(0, ['abc.x_foo', 'x_foobar.abc'])
@@ -1849,7 +1863,7 @@ fun! Test_normal33_g_cmd2()
   bw!
 endfunc
 
-func! Test_g_ctrl_g()
+func Test_g_ctrl_g()
   new
 
   let a = execute(":norm! g\<c-g>")
@@ -2139,7 +2153,7 @@ fun! Test_normal41_insert_reg()
   bw!
 endfunc
 
-func! Test_normal42_halfpage()
+func Test_normal42_halfpage()
   " basic test for Ctrl-D and Ctrl-U
   call Setup_NewWindow()
   call assert_equal(5, &scroll)
@@ -2207,7 +2221,7 @@ fun! Test_normal43_textobject1()
   bw!
 endfunc
 
-func! Test_normal44_textobjects2()
+func Test_normal44_textobjects2()
   " basic testing for is and as text objects
   new
   call append(0, ['This is a test. With some sentences!', '', 'Even with a question? And one more. And no sentence here'])
@@ -2262,7 +2276,7 @@ func! Test_normal44_textobjects2()
   bw!
 endfunc
 
-func! Test_normal45_drop()
+func Test_normal45_drop()
   if !has('dnd')
     " The ~ register does not exist
     call assert_beeps('norm! "~')
@@ -2280,7 +2294,7 @@ func! Test_normal45_drop()
   bw!
 endfunc
 
-func! Test_normal46_ignore()
+func Test_normal46_ignore()
   new
   " How to test this?
   " let's just for now test, that the buffer
@@ -2299,7 +2313,7 @@ func! Test_normal46_ignore()
   bw!
 endfunc
 
-func! Test_normal47_visual_buf_wipe()
+func Test_normal47_visual_buf_wipe()
   " This was causing a crash or ml_get error.
   enew!
   call setline(1,'xxx')
@@ -2313,7 +2327,7 @@ func! Test_normal47_visual_buf_wipe()
   set nomodified
 endfunc
 
-func! Test_normal47_autocmd()
+func Test_normal47_autocmd()
   " disabled, does not seem to be possible currently
   throw "Skipped: not possible to test cursorhold autocmd while waiting for input in normal_cmd"
   new
@@ -2331,14 +2345,14 @@ func! Test_normal47_autocmd()
   bw!
 endfunc
 
-func! Test_normal48_wincmd()
+func Test_normal48_wincmd()
   new
   exe "norm! \<c-w>c"
   call assert_equal(1, winnr('$'))
   call assert_fails(":norm! \<c-w>c", "E444")
 endfunc
 
-func! Test_normal49_counts()
+func Test_normal49_counts()
   new
   call setline(1, 'one two three four five six seven eight nine ten')
   1
@@ -2347,7 +2361,7 @@ func! Test_normal49_counts()
   bw!
 endfunc
 
-func! Test_normal50_commandline()
+func Test_normal50_commandline()
   if !has("timers") || !has("cmdline_hist") || !has("vertsplit")
     return
   endif
@@ -2378,7 +2392,7 @@ func! Test_normal50_commandline()
   bw!
 endfunc
 
-func! Test_normal51_FileChangedRO()
+func Test_normal51_FileChangedRO()
   if !has("autocmd")
     return
   endif
@@ -2395,7 +2409,7 @@ func! Test_normal51_FileChangedRO()
   call delete("Xreadonly.log")
 endfunc
 
-func! Test_normal52_rl()
+func Test_normal52_rl()
   if !has("rightleft")
     return
   endif
@@ -2428,7 +2442,7 @@ func! Test_normal52_rl()
   bw!
 endfunc
 
-func! Test_normal53_digraph()
+func Test_normal53_digraph()
   if !has('digraphs')
     return
   endif
@@ -2516,6 +2530,29 @@ func Test_changelist()
   let &ul = save_ul
 endfunc
 
+func Test_nv_hat_count()
+  %bwipeout!
+  let l:nr = bufnr('%') + 1
+  call assert_fails(':execute "normal! ' . l:nr . '\<C-^>"', 'E92')
+
+  edit Xfoo
+  let l:foo_nr = bufnr('Xfoo')
+
+  edit Xbar
+  let l:bar_nr = bufnr('Xbar')
+
+  " Make sure we are not just using the alternate file.
+  edit Xbaz
+
+  call feedkeys(l:foo_nr . "\<C-^>", 'tx')
+  call assert_equal('Xfoo', fnamemodify(bufname('%'), ':t'))
+
+  call feedkeys(l:bar_nr . "\<C-^>", 'tx')
+  call assert_equal('Xbar', fnamemodify(bufname('%'), ':t'))
+
+  %bwipeout!
+endfunc
+
 func Test_delete_until_paragraph()
   new
   normal grádv}
@@ -2617,3 +2654,80 @@ Piece of Java
 
   close!
 endfunc
+
+fun! Test_normal_gdollar_cmd()
+  if !has("jumplist")
+    return
+  endif
+  " Tests for g cmds
+  call Setup_NewWindow()
+  " Make long lines that will wrap
+  %s/$/\=repeat(' foobar', 10)/
+  20vsp
+  set wrap
+  " Test for g$ with count
+  norm! gg
+  norm! 0vg$y
+  call assert_equal(20, col("'>"))
+  call assert_equal('1 foobar foobar foob', getreg(0))
+  norm! gg
+  norm! 0v4g$y
+  call assert_equal(72, col("'>"))
+  call assert_equal('1 foobar foobar foobar foobar foobar foobar foobar foobar foobar foobar'.."\n", getreg(0))
+  norm! gg
+  norm! 0v6g$y
+  call assert_equal(40, col("'>"))
+  call assert_equal('1 foobar foobar foobar foobar foobar foobar foobar foobar foobar foobar'.. "\n"..
+		  \ '2 foobar foobar foobar foobar foobar foo', getreg(0))
+  set nowrap
+  " clean up
+  norm! gg
+  norm! 0vg$y
+  call assert_equal(20, col("'>"))
+  call assert_equal('1 foobar foobar foob', getreg(0))
+  norm! gg
+  norm! 0v4g$y
+  call assert_equal(20, col("'>"))
+  call assert_equal('1 foobar foobar foobar foobar foobar foobar foobar foobar foobar foobar'.. "\n"..
+                 \  '2 foobar foobar foobar foobar foobar foobar foobar foobar foobar foobar'.. "\n"..
+                 \  '3 foobar foobar foobar foobar foobar foobar foobar foobar foobar foobar'.. "\n"..
+                 \  '4 foobar foobar foob', getreg(0))
+  norm! gg
+  norm! 0v6g$y
+  call assert_equal(20, col("'>"))
+  call assert_equal('1 foobar foobar foobar foobar foobar foobar foobar foobar foobar foobar'.. "\n"..
+                 \  '2 foobar foobar foobar foobar foobar foobar foobar foobar foobar foobar'.. "\n"..
+                 \  '3 foobar foobar foobar foobar foobar foobar foobar foobar foobar foobar'.. "\n"..
+                 \  '4 foobar foobar foobar foobar foobar foobar foobar foobar foobar foobar'.. "\n"..
+                 \  '5 foobar foobar foobar foobar foobar foobar foobar foobar foobar foobar'.. "\n"..
+                 \  '6 foobar foobar foob', getreg(0))
+  " Move to last line, also down movement is not possible, should still move
+  " the cursor to the last visible char
+  norm! G
+  norm! 0v6g$y
+  call assert_equal(20, col("'>"))
+  call assert_equal('100 foobar foobar fo', getreg(0))
+  bw!
+endfunc
+
+func Test_normal_gk()
+  " needs 80 column new window
+  new
+  vert 80new
+  put =[repeat('x',90)..' {{{1', 'x {{{1']
+  norm! gk
+  " In a 80 column wide terminal the window will be only 78 char
+  " (because Vim will leave space for the other window),
+  " but if the terminal is larger, it will be 80 chars, so verify the
+  " cursor column correctly.
+  call assert_equal(winwidth(0)+1, col('.'))
+  call assert_equal(winwidth(0)+1, virtcol('.'))
+  norm! j
+  call assert_equal(6, col('.'))
+  call assert_equal(6, virtcol('.'))
+  norm! gk
+  call assert_equal(95, col('.'))
+  call assert_equal(95, virtcol('.'))
+  bw!
+  bw!
+endfunc
diff --git a/src/nvim/testdir/test_quickfix.vim b/src/nvim/testdir/test_quickfix.vim
index 83ef3c2fce..597be0aa89 100644
--- a/src/nvim/testdir/test_quickfix.vim
+++ b/src/nvim/testdir/test_quickfix.vim
@@ -3315,6 +3315,20 @@ func Test_qfjump()
   call Xqfjump_tests('l')
 endfunc
 
+" Test helpgrep with lang specifier
+func Xtest_helpgrep_with_lang_specifier(cchar)
+  call s:setup_commands(a:cchar)
+  Xhelpgrep Vim@en
+  call assert_equal('help', &filetype)
+  call assert_notequal(0, g:Xgetlist({'nr' : '$'}).nr)
+  new | only
+endfunc
+
+func Test_helpgrep_with_lang_specifier()
+  call Xtest_helpgrep_with_lang_specifier('c')
+  call Xtest_helpgrep_with_lang_specifier('l')
+endfunc
+
 " The following test used to crash Vim.
 " Open the location list window and close the regular window associated with
 " the location list. When the garbage collection runs now, it incorrectly
diff --git a/src/nvim/testdir/test_window_cmd.vim b/src/nvim/testdir/test_window_cmd.vim
index c87c0a0af4..43c1f06c44 100644
--- a/src/nvim/testdir/test_window_cmd.vim
+++ b/src/nvim/testdir/test_window_cmd.vim
@@ -117,15 +117,71 @@ func Test_window_vertical_split()
   bw
 endfunc
 
+" Test the ":wincmd ^" and "<C-W>^" commands.
 func Test_window_split_edit_alternate()
-  e Xa
-  e Xb
 
+  " Test for failure when the alternate buffer/file no longer exists.
+  edit Xfoo | %bw
+  call assert_fails(':wincmd ^', 'E23')
+
+  " Test for the expected behavior when we have two named buffers.
+  edit Xfoo | edit Xbar
   wincmd ^
-  call assert_equal('Xa', bufname(winbufnr(1)))
-  call assert_equal('Xb', bufname(winbufnr(2)))
+  call assert_equal('Xfoo', bufname(winbufnr(1)))
+  call assert_equal('Xbar', bufname(winbufnr(2)))
+  only
 
-  bw Xa Xb
+  " Test for the expected behavior when the alternate buffer is not named.
+  enew | let l:nr1 = bufnr('%')
+  edit Xfoo | let l:nr2 = bufnr('%')
+  wincmd ^
+  call assert_equal(l:nr1, winbufnr(1))
+  call assert_equal(l:nr2, winbufnr(2))
+  only
+
+  " FIXME: this currently fails on AppVeyor, but passes locally
+  if !has('win32')
+    " Test the Normal mode command.
+    call feedkeys("\<C-W>\<C-^>", 'tx')
+    call assert_equal(l:nr2, winbufnr(1))
+    call assert_equal(l:nr1, winbufnr(2))
+  endif
+
+  %bw!
+endfunc
+
+" Test the ":[count]wincmd ^" and "[count]<C-W>^" commands.
+func Test_window_split_edit_bufnr()
+
+  %bwipeout
+  let l:nr = bufnr('%') + 1
+  call assert_fails(':execute "normal! ' . l:nr . '\<C-W>\<C-^>"', 'E92')
+  call assert_fails(':' . l:nr . 'wincmd ^', 'E16')
+  call assert_fails(':0wincmd ^', 'E16')
+
+  edit Xfoo | edit Xbar | edit Xbaz
+  let l:foo_nr = bufnr('Xfoo')
+  let l:bar_nr = bufnr('Xbar')
+  let l:baz_nr = bufnr('Xbaz')
+
+  " FIXME: this currently fails on AppVeyor, but passes locally
+  if !has('win32')
+    call feedkeys(l:foo_nr . "\<C-W>\<C-^>", 'tx')
+    call assert_equal('Xfoo', bufname(winbufnr(1)))
+    call assert_equal('Xbaz', bufname(winbufnr(2)))
+    only
+
+    call feedkeys(l:bar_nr . "\<C-W>\<C-^>", 'tx')
+    call assert_equal('Xbar', bufname(winbufnr(1)))
+    call assert_equal('Xfoo', bufname(winbufnr(2)))
+    only
+
+    execute l:baz_nr . 'wincmd ^'
+    call assert_equal('Xbaz', bufname(winbufnr(1)))
+    call assert_equal('Xbar', bufname(winbufnr(2)))
+  endif
+
+  %bw!
 endfunc
 
 func Test_window_preview()
@@ -700,6 +756,42 @@ func Test_relative_cursor_second_line_after_resize()
   let &so = so_save
 endfunc
 
+func Test_split_noscroll()
+  let so_save = &so
+  enew
+  call setline(1, range(1, 8))
+  normal 100%
+  split
+
+  1wincmd w
+  let winid1 = win_getid()
+  let info1 = getwininfo(winid1)[0]
+
+  2wincmd w
+  let winid2 = win_getid()
+  let info2 = getwininfo(winid2)[0]
+
+  call assert_equal(1, info1.topline)
+  call assert_equal(1, info2.topline)
+
+  " window that fits all lines by itself, but not when split: closing other
+  " window should restore fraction.
+  only!
+  call setline(1, range(1, &lines - 10))
+  exe &lines / 4
+  let winid1 = win_getid()
+  let info1 = getwininfo(winid1)[0]
+  call assert_equal(1, info1.topline)
+  new
+  redraw
+  close
+  let info1 = getwininfo(winid1)[0]
+  call assert_equal(1, info1.topline)
+
+  bwipe!
+  let &so = so_save
+endfunc
+
 " Tests for the winnr() function
 func Test_winnr()
   only | tabonly