From 4533c40786a68d57b878babd46ea70e761392cf0 Mon Sep 17 00:00:00 2001
From: zeertzjq <zeertzjq@outlook.com>
Date: Tue, 11 Mar 2025 06:23:12 +0800
Subject: vim-patch:9.1.1194: filetype: false positive help filetype detection

Problem:  filetype: false positive help filetype detection
Solution: Only detect a file as help if modeline appears either at start
          of line or is preceded by whitespace (zeertzjq).

closes: vim/vim#16845

https://github.com/vim/vim/commit/6763b0ee95e7e66ab7992653fbba48691e803e70
---
 test/old/testdir/test_filetype.vim | 11 +++++++++++
 1 file changed, 11 insertions(+)

(limited to 'test')

diff --git a/test/old/testdir/test_filetype.vim b/test/old/testdir/test_filetype.vim
index 3d8772e477..633166c5ce 100644
--- a/test/old/testdir/test_filetype.vim
+++ b/test/old/testdir/test_filetype.vim
@@ -1628,11 +1628,22 @@ func Test_help_file()
   call assert_equal('help', &filetype)
   bwipe!
 
+  call writefile(['some text', 'Copyright: |manual-copyright| vim:ft=help:'],
+        \ 'doc/help1.txt', 'D')
+  split doc/help1.txt
+  call assert_equal('help', &filetype)
+  bwipe!
+
   call writefile(['some text'], 'doc/nothelp.txt', 'D')
   split doc/nothelp.txt
   call assert_notequal('help', &filetype)
   bwipe!
 
+  call writefile(['some text', '`vim:ft=help`'], 'doc/nothelp1.txt', 'D')
+  split doc/nothelp1.txt
+  call assert_notequal('help', &filetype)
+  bwipe!
+
   filetype off
   set modeline&
 endfunc
-- 
cgit