patch 8.2.4718: @@@ in the last line sometimes drawn in the wrong place
Problem: @@@ in the last line sometimes drawn in the wrong place.
Solution: Make sure the column is valid. (closes #10130)
diff --git a/src/testdir/test_display.vim b/src/testdir/test_display.vim
index a000521..f5c8dc5 100644
--- a/src/testdir/test_display.vim
+++ b/src/testdir/test_display.vim
@@ -372,5 +372,31 @@
let &breakat=_breakat
endfunc
+func Test_display_lastline()
+ CheckScreendump
+
+ let lines =<< trim END
+ call setline(1, ['aaa', 'b'->repeat(100)])
+ set display=truncate
+ vsplit
+ 100wincmd <
+ END
+ call writefile(lines, 'XdispLastline')
+ let buf = RunVimInTerminal('-S XdispLastline', #{rows: 10})
+ call VerifyScreenDump(buf, 'Test_display_lastline_1', {})
+
+ call term_sendkeys(buf, ":set display=lastline\<CR>")
+ call VerifyScreenDump(buf, 'Test_display_lastline_2', {})
+
+ call term_sendkeys(buf, ":100wincmd >\<CR>")
+ call VerifyScreenDump(buf, 'Test_display_lastline_3', {})
+
+ call term_sendkeys(buf, ":set display=truncate\<CR>")
+ call VerifyScreenDump(buf, 'Test_display_lastline_4', {})
+
+ call StopVimInTerminal(buf)
+ call delete('XdispLastline')
+endfunc
+
" vim: shiftwidth=2 sts=2 expandtab