From c3568b31f423b8af11be155f6fdb7b464a519fd2 Mon Sep 17 00:00:00 2001
From: zeertzjq <zeertzjq@outlook.com>
Date: Sun, 22 May 2022 05:43:38 +0800
Subject: vim-patch:8.2.4991: no test for hwat patch 8.1.0535 fixes

Problem:    No test for hwat patch 8.1.0535 fixes.
Solution:   Add a test. (closes vim/vim#10462)
https://github.com/vim/vim/commit/93c1573dd284dc9cf5ed9265a0143aaf520d2920
---
 src/nvim/testdir/test_fold.vim | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/src/nvim/testdir/test_fold.vim b/src/nvim/testdir/test_fold.vim
index 9f5ad53adb..b1d91fd879 100644
--- a/src/nvim/testdir/test_fold.vim
+++ b/src/nvim/testdir/test_fold.vim
@@ -217,6 +217,26 @@ func Test_update_folds_expr_read()
   set foldmethod& foldexpr&
 endfunc
 
+" Test for what patch 8.1.0535 fixes.
+func Test_foldexpr_no_interrupt_addsub()
+  new
+  func! FoldFunc()
+    call setpos('.', getcurpos())
+    return '='
+  endfunc
+
+  set foldmethod=expr
+  set foldexpr=FoldFunc()
+  call setline(1, '1.2')
+
+  exe "norm! $\<C-A>"
+  call assert_equal('1.3', getline(1))
+
+  bwipe!
+  delfunc FoldFunc
+  set foldmethod& foldexpr&
+endfunc
+
 func Check_foldlevels(expected)
   call assert_equal(a:expected, map(range(1, line('$')), 'foldlevel(v:val)'))
 endfunc
-- 
cgit