patch 8.1.1579: dict and list could be GC'ed while displaying error commit https://github.com/vim/vim/commit/adc6714aac20f5462a0ecec50ab4806b2f3ab0db Author: Bram Moolenaar <Bram@vim.org> Date: Sat Jun 22 01:40:42 2019 +0200 patch 8.1.1579: dict and list could be GC'ed while displaying error Problem: Dict and list could be GC'ed while displaying error in a timer. (Yasuhiro Matsumoto) Solution: Block garbage collection when executing a timer. Add test_garbagecollect_soon(). Add "no_wait_return" to test_override(). (closes #4571)

" Tests for the :set command

function Test_set_backslash()
  let isk_save = &isk

  set isk=a,b,c
  set isk+=d
  call assert_equal('a,b,c,d', &isk)
  set isk+=\\,e
  call assert_equal('a,b,c,d,\,e', &isk)
  set isk-=e
  call assert_equal('a,b,c,d,\', &isk)
  set isk-=\\
  call assert_equal('a,b,c,d', &isk)

  let &isk = isk_save
endfunction

function Test_set_add()
  let wig_save = &wig

  set wildignore=*.png,
  set wildignore+=*.jpg
  call assert_equal('*.png,*.jpg', &wig)

  let &wig = wig_save
endfunction