Execute (Initialize test environment):
  Save &rtp, g:plugs, g:plug_home, g:plug_window

  let first_rtp = split(&rtp, ',')[0]
  let last_rtp  = split(&rtp, ',')[-1]

  let vader = fnamemodify(globpath(&rtp, 'autoload/vader.vim'), ':h:h')
  let plug  = fnamemodify(globpath(&rtp, 'autoload/plug.vim'), ':h:h')
  set rtp=$HOME/.vim,$VIM/vimfiles,$VIMRUNTIME,$VIM/vimfiles/after,$HOME/.vim/after
  execute 'set rtp^='.vader
  execute 'set rtp^='.plug
  let basertp = &rtp

  unlet! g:plugs g:plug_home g:plug_window
  let g:plug_url_format = 'file:///tmp/%s'

  set t_Co=256
  colo default
  pclose

  function! PlugStatusSorted()
    PlugStatus
    %y
    q
    normal! P
    %sort
    g/^$/d
  endfunction

  function! AssertExpect(bang, pat, cnt)
    let op = a:bang ? '==#' : '=~#'
    AssertEqual a:cnt, len(filter(getline(1, '$'), "v:val ".op." '".a:pat."'"))
  endfunction
  command! -nargs=+ -bang AssertExpect call AssertExpect('<bang>' == '!', <args>)

  function! EnsureLoaded()
    if has('vim_starting')
      runtime! plugin/**/*.vim
    endif
  endfunction

Execute (Print Interpreter Version):
  redir => out
  if has('ruby')
    silent ruby puts 'Ruby: ' + RUBY_VERSION
  elseif has('python')
    silent python import sys; svi = sys.version_info; print 'Python: {}.{}.{}'.format(svi[0], svi[1], svi[2])
  endif
  redir END
  Log substitute(out, '\n', '', 'g')

Include: workflow.vader
Include: regressions.vader

Execute (Cleanup):
  silent! call system('rm -rf '.temp_plugged)
  silent! call system('rm -rf '.temp_plugged)
  silent! call rename(fzf, expand('$PLUG_FIXTURES/fzf-staged'))
  silent! unlet g:plugs
  silent! unlet g:plug_home
  silent! unlet g:plug_url_format
  silent! unlet temp_plugged vader plug basertp save_rtp repo lnum fzf out tabnr found len
  silent! delf PlugStatusSorted
  silent! delf AssertExpect
  silent! delf PlugUpdated
  silent! delf EnsureLoaded
  silent! delc AssertExpect
  silent! unmap /
  silent! unmap ?

  Restore