Fix tests

Author: aiya000

test/scratch_buffer.vim

@@ -2,10 +2,26 @@ const s:suite = themis#suite('scratch_buffer')
 const s:expect = themis#helper('expect')
 
 function! s:suite.before() abort
-  let g:scratch_buffer_tmp_file_pattern = '/tmp/scratch-%d'
+  " Backup default values
+  let g:backup_scratch_buffer_default_file_ext = g:scratch_buffer_default_file_ext
+  let g:backup_scratch_buffer_default_open_method = g:scratch_buffer_default_open_method
+  let g:backup_scratch_buffer_default_buffer_size = g:scratch_buffer_default_buffer_size
+  let g:backup_scratch_buffer_auto_save_file_buffer = g:scratch_buffer_auto_save_file_buffer
+  let g:backup_scratch_buffer_use_default_keymappings = g:scratch_buffer_use_default_keymappings
+  let g:backup_scratch_buffer_auto_hide_buffer = g:scratch_buffer_auto_hide_buffer
 endfunction
 
 function! s:suite.before_each() abort
+  " Don't waste our environment
+  let g:scratch_buffer_tmp_file_pattern = system('realpath "./test/tmp/scratch-%d"')[:-2]
+  " Restore default values
+  let g:scratch_buffer_default_file_ext = g:backup_scratch_buffer_default_file_ext
+  let g:scratch_buffer_default_open_method = g:backup_scratch_buffer_default_open_method
+  let g:scratch_buffer_default_buffer_size = g:backup_scratch_buffer_default_buffer_size
+  let g:scratch_buffer_auto_save_file_buffer = g:backup_scratch_buffer_auto_save_file_buffer
+  let g:scratch_buffer_use_default_keymappings=g:backup_scratch_buffer_use_default_keymappings
+  let g:scratch_buffer_auto_hide_buffer = g:backup_scratch_buffer_auto_hide_buffer
+
   " Clean all created scratch files and buffers
   ScratchBufferClean
 endfunction
@@ -70,3 +86,57 @@ function! s:suite.wipes_opened_files_and_buffer() abort
     \ new_all_buffer_names->scratch_buffer#helper#contains(second_file),
   \ ).not.to_equal(-1)
 endfunction
+
+function! s:suite.uses_default_values() abort
+  let g:scratch_buffer_default_file_ext = 'ts'
+  let g:scratch_buffer_default_open_method = 'vsp'
+  let g:scratch_buffer_default_buffer_size = 20
+
+  " Open another window to resize a scratch buffer
+  new
+  " Open buffer without arguments
+  ScratchBufferOpen
+
+  const file_name = expand('%:p')
+  const expected = printf(g:scratch_buffer_tmp_file_pattern, 0) .. '.ts'
+  call s:expect(file_name).to_equal(expected)
+  call s:expect(winwidth(0)).to_be_same(20)
+endfunction
+
+function! s:suite.auto_saves_file_buffer() abort
+  let g:scratch_buffer_auto_save_file_buffer = v:true
+
+  " Create a file buffer
+  ScratchBufferOpenFile md
+
+  " Add some content
+  call setline(1, 'test content')
+
+  " Trigger TextChanged event
+  doautocmd TextChanged
+
+  " Check if file was saved
+  const file_name = expand('%:p')
+  call s:expect(filereadable(file_name)).to_equal(1)
+  call s:expect(readfile(file_name)[0]).to_equal('test content')
+endfunction
+
+function! s:suite.auto_hide_buffer_behavior() abort
+  " Test temporary buffer auto-hiding
+  let g:scratch_buffer_auto_hide_buffer = #{
+    \ when_tmp_buffer: v:true,
+    \ when_file_buffer: v:false,
+  \ }
+  only
+  ScratchBufferOpen md
+  wincmd p  " Trigger WinLeave
+  call s:expect(winnr('$')).to_be_same(1)
+
+  " Test file buffer auto-hiding
+  let g:scratch_buffer_auto_hide_buffer.when_tmp_buffer = v:false
+  let g:scratch_buffer_auto_hide_buffer.when_file_buffer = v:true
+  only
+  ScratchBufferOpenFile md
+  wincmd p " Trigger WinLeave
+  call s:expect(winnr('$')).to_be_same(1)
+endfunction