From 15ee93c0b47957e3b6837d8325e555afa0f21993 Mon Sep 17 00:00:00 2001
From: zeertzjq <zeertzjq@outlook.com>
Date: Wed, 11 Jan 2023 05:42:33 +0800
Subject: [PATCH] vim-patch:9.0.1171: screen is not redrawn after using
 setcellwidths() (#21730)

Problem:    Screen is not redrawn after using setcellwidths().
Solution:   Redraw the screen when the cell widths have changed. (Yasuhiro
            Matsumoto, closes vim/vim#11800)

https://github.com/vim/vim/commit/2bc849ff811059d25310399f982c6706faa7eb35
---
 src/nvim/testdir/test_utf8.vim | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/src/nvim/testdir/test_utf8.vim b/src/nvim/testdir/test_utf8.vim
index aa3b02b575..9146cf7ab3 100644
--- a/src/nvim/testdir/test_utf8.vim
+++ b/src/nvim/testdir/test_utf8.vim
@@ -2,6 +2,7 @@
  
 source check.vim
 source view_util.vim
+source screendump.vim
 
 " Visual block Insert adjusts for multi-byte char
 func Test_visual_block_insert()
@@ -198,6 +199,22 @@ func Test_setcellwidths()
   call setcellwidths([])
 endfunc
 
+func Test_setcellwidths_dump()
+  CheckRunVimInTerminal
+
+  let lines =<< trim END
+      call setline(1, "\ue5ffDesktop")
+  END
+  call writefile(lines, 'XCellwidths', 'D')
+  let buf = RunVimInTerminal('-S XCellwidths', {'rows': 6})
+  call VerifyScreenDump(buf, 'Test_setcellwidths_dump_1', {})
+
+  call term_sendkeys(buf, ":call setcellwidths([[0xe5ff, 0xe5ff, 2]])\<CR>")
+  call VerifyScreenDump(buf, 'Test_setcellwidths_dump_2', {})
+
+  call StopVimInTerminal(buf)
+endfunc
+
 func Test_print_overlong()
   " Text with more composing characters than MB_MAXBYTES.
   new