patch 9.0.0416: ml_get error when appending lines in popup window
Problem: ml_get error when appending lines in popup window.
Solution: Only update w_topline when w_buffer matches curbuf.
(closes #11074)
diff --git a/src/testdir/test_popupwin.vim b/src/testdir/test_popupwin.vim
index 7cdd128..5230fa3 100644
--- a/src/testdir/test_popupwin.vim
+++ b/src/testdir/test_popupwin.vim
@@ -4174,5 +4174,28 @@
call popup_close(id)
endfunc
+func Test_term_popup_bufline()
+ " very specific situation where a non-existing buffer line is used, leading
+ " to an ml_get error
+ CheckScreendump
+
+ let lines =<< trim END
+ vim9script
+ &scrolloff = 5
+ term_start('seq 1 5', {term_finish: 'open'})
+ timer_start(50, (_) => {
+ set cpoptions&vim
+ var buf = popup_create([], {})->winbufnr()
+ appendbufline(buf, 0, range(5))
+ })
+ END
+ call writefile(lines, 'XtestTermPopup', 'D')
+ let buf = RunVimInTerminal('-S XtestTermPopup', #{rows: 15})
+ call VerifyScreenDump(buf, 'Test_term_popup_bufline', {})
+
+ " clean up
+ call StopVimInTerminal(buf)
+endfunc
+
" vim: shiftwidth=2 sts=2