From ca5a810c4a67c9c3f482d0c015270c26aee2c943 Mon Sep 17 00:00:00 2001
From: zeertzjq <zeertzjq@outlook.com>
Date: Sat, 6 May 2023 20:00:17 +0800
Subject: vim-patch:9.0.1511: crash when using wrong arg types to
 assert_match() (#23507)

Problem:    Crash when using wrong arg types to assert_match().
Solution:   Check for NULL pointer. (closes vim/vim#12349)

https://github.com/vim/vim/commit/12e7a1fe7527e9e59adbe248a95b4b532e3ec58c
---
 test/old/testdir/test_assert.vim | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

(limited to 'test')

diff --git a/test/old/testdir/test_assert.vim b/test/old/testdir/test_assert.vim
index 57d11d0e3a..bc4e07e7c6 100644
--- a/test/old/testdir/test_assert.vim
+++ b/test/old/testdir/test_assert.vim
@@ -324,6 +324,23 @@ func Test_assert_fail_fails()
   call remove(v:errors, 0)
 endfunc
 
+func Test_assert_wrong_arg_emsg_off()
+  CheckFeature folding
+
+  new
+  call setline(1, ['foo', 'bar'])
+  1,2fold
+
+  " This used to crash Vim
+  let &l:foldtext = 'assert_match({}, {})'
+  redraw!
+
+  let &l:foldtext = 'assert_equalfile({}, {})'
+  redraw!
+
+  bwipe!
+endfunc
+
 func Test_assert_fails_in_try_block()
   try
     call assert_equal(0, assert_fails('throw "error"'))
-- 
cgit