commit bc869874fedf094129831836f131c64f10d98854
author Ralf Schandl <rakus@users.noreply.github.com> Fri May 28 14:12:14 2021 +0200
committer Bram Moolenaar <Bram@vim.org> Fri May 28 14:12:14 2021 +0200
tree 25f910004b20bbfd23fda1d1e55287ce768f1552
parent 89dcb4dce369de22fba13b9c3c63f11f8d42650b

patch 8.2.2893: multi-byte text in popup title shows up wrong

Problem:    Multi-byte text in popup title shows up wrong.
Solution:   Use the character width instead of the byte length. (Ralf Schandl,
            closes #8267, closes #8264)

src/testdir/test_popupwin.vim

diff --git a/src/testdir/test_popupwin.vim b/src/testdir/test_popupwin.vim
index f13252b..13957e5 100644
--- a/src/testdir/test_popupwin.vim
+++ b/src/testdir/test_popupwin.vim
@@ -1799,6 +1799,11 @@
   call term_sendkeys(buf, ":\<CR>")
   call VerifyScreenDump(buf, 'Test_popupwin_longtitle_4', {})
 
+  call term_sendkeys(buf, ":call popup_clear()\<CR>")
+  call term_sendkeys(buf, ":call popup_menu(['This is a line', 'and another line'], #{title: '▶ÄÖÜ◀', })\<CR>")
+  call VerifyScreenDump(buf, 'Test_popupwin_multibytetitle', {})
+  call term_sendkeys(buf, "x")
+
   " clean up
   call StopVimInTerminal(buf)
   call delete('XtestPopupTitle')