patch 9.0.1686: undotree() only works for the current buffer Commit: https://github.com/vim/vim/commit/5fee11114975b7405b7ccd3ee8758e54bf559760 Author: Devin J. Pohly <djpohly@gmail.com> Date: Sun Apr 23 20:26:59 2023 -0500 patch 9.0.1686: undotree() only works for the current buffer Problem: undotree() only works for the current buffer Solution: Add an optional "buffer number" parameter to undotree(). If omitted, use the current buffer for backwards compatibility. closes: #4001 closes: #12292 Signed-off-by: Christian Brabandt <cb@256bit.org> Co-authored-by: zeertzjq <zeertzjq@outlook.com> Co-authored-by: Devin J. Pohly <djpohly@gmail.com>

" Test behavior of interrupt()

let s:bufwritepre_called = 0
let s:bufwritepost_called = 0

func s:bufwritepre()
  let s:bufwritepre_called = 1
  call interrupt()
endfunction

func s:bufwritepost()
  let s:bufwritepost_called = 1
endfunction

func Test_interrupt()
  new Xinterrupt
  let n = 0
  try
    au BufWritePre Xinterrupt call s:bufwritepre()
    au BufWritePost Xinterrupt call s:bufwritepost()
    w!
  catch /^Vim:Interrupt$/
  endtry
  call assert_equal(1, s:bufwritepre_called)
  call assert_equal(0, s:bufwritepost_called)
  call assert_equal(0, filereadable('Xinterrupt'))

  au! BufWritePre
  au! BufWritePost
endfunc

" vim: shiftwidth=2 sts=2 expandtab