Vimrc to run current file with turn (instead of ruby) and run the current 'it' test if applicable. Based on https://github.com/r00k/dotfiles/blob/master/vimrc I am using turn because the name matcher is not working for me with ruby.

gistfile1.txt

map <Leader>s :w<cr>:call RunCurrentTest()<CR>
map <Leader>ss :w<cr>:call RunCurrentLineInTest()<CR>

""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" Test-running stuff
""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
function! RunCurrentTest()
  let in_test_file = match(expand("%"), '\(.feature\|_spec.rb\|_test.rb\)$') != -1
  if in_test_file
    call SetTestFile()

    if match(expand('%'), '\.feature$') != -1
      call SetTestRunner("!bin/cucumber")
      exec g:bjo_test_runner g:bjo_test_file
    elseif match(expand('%'), '_spec\.rb$') != -1
      call SetTestRunner("!bin/rspec")
      exec g:bjo_test_runner g:bjo_test_file
    else
      call SetTestRunner("!turn -Itest")
      exec g:bjo_test_runner g:bjo_test_file
    endif
  else
    exec g:bjo_test_runner g:bjo_test_file
  endif
endfunction

function! SetTestRunner(runner)
  let g:bjo_test_runner=a:runner
endfunction

function! SetTestFile()
  let g:bjo_test_file=@%
endfunction

function! RunCurrentLineInTest()
  let in_test_file = match(expand("%"), '\(.feature\|_spec.rb\|_test.rb\)$') != -1
  if in_test_file
    call SetTestFileWithLine()
  end

  exec "!turn -Itest" g:bjo_test_file . " -n /" . g:bjo_test_file_line . "/"
endfunction

function! SetTestFileWithLine()
  let g:bjo_test_file=@%
  let rawline = getline(".")
  let rawline = substitute(rawline, ".*it '", "", "")
  let rawline = substitute(rawline, "' do", "", "")
  let g:bjo_test_file_line = substitute(rawline, " ", ".", "g")
endfunction

Assumes that you are using minitest & turn gems and spec style minitest. I am actually using minitest-rails

I was not able to get the minitest-focus gem to work or to get the -n option working with ruby directly.

This requires that your cursor is on the 'it' line.