From 3d80392cab8ba41757769e18ffde9e8258365472 Mon Sep 17 00:00:00 2001
From: zeertzjq <zeertzjq@outlook.com>
Date: Sat, 15 Apr 2023 13:15:16 +0800
Subject: [PATCH] vim-patch:8.2.0104: using channel or job with ":execute" has
 strange effects

Problem:    Using channel or job with ":execute" has strange effects.
Solution:   Give an error message for Job and Channel.

https://github.com/vim/vim/commit/b662591e505e8523634a1c8ddfb7fe44fae880c6

Co-authored-by: Bram Moolenaar <Bram@vim.org>
---
 test/old/testdir/test_eval_stuff.vim | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/test/old/testdir/test_eval_stuff.vim b/test/old/testdir/test_eval_stuff.vim
index 46482c34a1..1cf039342d 100644
--- a/test/old/testdir/test_eval_stuff.vim
+++ b/test/old/testdir/test_eval_stuff.vim
@@ -205,6 +205,19 @@ func Test_vvar_scriptversion1()
   call assert_equal(511, 0o777)
 endfunc
 
+func Test_excute_null()
+  call assert_fails('execute v:_null_list', 'E730:')
+  call assert_fails('execute v:_null_dict', 'E731:')
+  call assert_fails('execute v:_null_blob', 'E976:')
+  execute v:_null_string
+  " Nvim doesn't have null partials
+  " call assert_fails('execute test_null_partial()', 'E729:')
+  if has('job')
+    call assert_fails('execute test_null_job()', 'E908:')
+    call assert_fails('execute test_null_channel()', 'E908:')
+  endif
+endfunc
+
 func Test_number_max_min_size()
   " This will fail on systems without 64 bit number support or when not
   " configured correctly.