Resolve a part of test cases

Author: aiya000

autoload/scratch_buffer.vim

@@ -1,6 +1,3 @@
-scriptencoding utf-8
-scriptversion 3
-
 " Params:
 " - (first argument) {string | undefined} (Optional)
 "     - File extension without '.', e.g., 'md', 'ts', or 'sh'
@@ -24,11 +21,35 @@ function! scratch_buffer#open_file(opening_next_fresh_buffer, ...) abort
   \ })
 endfunction
 
+" Initialize augroup in case options were updated
+function! scratch_buffer#initialize_augroup() abort
+  augroup VimScratchBuffer
+    autocmd!
+    execute
+      \ 'autocmd'
+      \ 'TextChanged'
+      \ substitute(g:scratch_buffer_file_pattern.when_file_buffer, '%d', '*', '')
+      \ 'call scratch_buffer#autocmd#save_file_buffer_if_enabled()'
+    execute
+      \ 'autocmd'
+      \ 'WinLeave'
+      \ substitute(g:scratch_buffer_file_pattern.when_tmp_buffer, '%d', '*', '')
+      \ 'call scratch_buffer#autocmd#hide_buffer_if_enabled()'
+    execute
+      \ 'autocmd'
+      \ 'WinLeave'
+      \ substitute(g:scratch_buffer_file_pattern.when_file_buffer, '%d', '*', '')
+      \ 'call scratch_buffer#autocmd#hide_buffer_if_enabled()'
+  augroup END
+endfunction
+
 function! s:open_buffer(options) abort
   const args = a:options.args
   const opening_as_tmp_buffer = a:options.opening_as_tmp_buffer
   const opening_next_fresh_buffer = a:options.opening_next_fresh_buffer
 
+  call scratch_buffer#initialize_augroup()
+
   const file_ext = get(args, 0, g:scratch_buffer_default_file_ext)
   const file_pattern = s:get_file_pattern(opening_as_tmp_buffer, file_ext)
 

autoload/scratch_buffer/autocmd.vim

@@ -1,9 +1,6 @@
-scriptencoding utf-8
-scriptversion 3
-
 function! scratch_buffer#autocmd#save_file_buffer_if_enabled() abort
   if g:scratch_buffer_auto_save_file_buffer && (&buftype !=# 'nofile')
-    silent! write
+    silent write
   endif
 endfunction
 

plugin/scratch_buffer.vim

@@ -57,21 +57,7 @@ let g:scratch_buffer_auto_hide_buffer = get(g:, 'scratch_buffer_auto_hide_buffer
 let g:scratch_buffer_auto_hide_buffer.when_tmp_buffer = get(g:scratch_buffer_auto_hide_buffer, 'when_tmp_buffer', v:false)
 let g:scratch_buffer_auto_hide_buffer.when_file_buffer = get(g:scratch_buffer_auto_hide_buffer, 'when_file_buffer', v:false)
 
-augroup VimScratchBuffer
-  autocmd!
-
-  execute
-    \ 'autocmd'
-    \ 'TextChanged'
-    \ substitute(g:scratch_buffer_file_pattern.when_file_buffer, '%d', '*', '')
-    \ 'call scratch_buffer#autocmd#save_file_buffer_if_enabled()'
-
-  execute
-    \ 'autocmd'
-    \ 'WinLeave'
-    \ substitute(g:scratch_buffer_file_pattern.when_tmp_buffer, '%d', '*', '')
-    \ 'call scratch_buffer#autocmd#hide_buffer_if_enabled()'
-augroup END
+call scratch_buffer#initialize_augroup()
 
 if g:scratch_buffer_use_default_keymappings
   nnoremap <silent> <leader>b <Cmd>ScratchBufferOpen<CR>