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 Ex := command.

func Test_ex_equal()
  new
  call setline(1, ["foo\tbar", "bar\tfoo"])

  let a = execute('=')
  call assert_equal("\n2", a)

  let a = execute('=#')
  call assert_equal("\n2\n  1 foo     bar", a)

  let a = execute('=l')
  call assert_equal("\n2\nfoo^Ibar$", a)

  let a = execute('=p')
  call assert_equal("\n2\nfoo     bar", a)

  let a = execute('=l#')
  call assert_equal("\n2\n  1 foo^Ibar$", a)

  let a = execute('=p#')
  call assert_equal("\n2\n  1 foo     bar", a)

  let a = execute('.=')
  call assert_equal("\n1", a)

  call assert_fails('3=', 'E16:')
  call assert_fails('=x', 'E488:')

  bwipe!
endfunc

" vim: shiftwidth=2 sts=2 expandtab