patch 9.0.1770: lines disappear when modifying chars before virt text
Problem: lines disappear when modifying chars before virt text
Solution: take virtual text property length into account
closes: #12558
closes: #12244
Signed-off-by: Christian Brabandt <cb@256bit.org>
Co-authored-by: Ibby <33922797+SleepySwords@users.noreply.github.com>
diff --git a/src/testdir/test_textprop.vim b/src/testdir/test_textprop.vim
index 9cf46d7..dcb408c 100644
--- a/src/testdir/test_textprop.vim
+++ b/src/testdir/test_textprop.vim
@@ -3979,6 +3979,28 @@
call StopVimInTerminal(buf)
endfunc
+func Test_modify_text_before_prop()
+ CheckRunVimInTerminal
+
+ let lines =<< trim END
+ vim9script
+ setline(1, ['test_words', 'second line', 'third line', 'fourth line'])
+ set number
+ prop_type_add('text', {highlight: 'DiffChange'})
+ prop_type_add('below', {highlight: 'NonText'})
+ prop_add(1, 11, {type: 'text', text: repeat('a', 65)})
+ prop_add(1, 0, {type: 'below', text: repeat('a', 65), text_align: 'below'})
+ END
+ call writefile(lines, 'XtextPropModifyBefore', 'D')
+ let buf = RunVimInTerminal('-S XtextPropModifyBefore', #{rows: 5, cols: 60})
+ call VerifyScreenDump(buf, 'Test_modify_text_before_prop_1', {})
+
+ call term_sendkeys(buf, "xxia\<Esc>")
+ call VerifyScreenDump(buf, 'Test_modify_text_before_prop_2', {})
+
+ call StopVimInTerminal(buf)
+endfunc
+
func Test_overlong_textprop_above_crash()
CheckRunVimInTerminal