patch 8.1.0542: shiftwidth() does not take 'vartabstop' into account commit https://github.com/vim/vim/commit/f951416a8396a54bbbe21de1a8b16716428549f2 Author: Bram Moolenaar <Bram@vim.org> Date: Thu Nov 22 03:08:29 2018 +0100 patch 8.1.0542: shiftwidth() does not take 'vartabstop' into account Problem: shiftwidth() does not take 'vartabstop' into account. Solution: Use the cursor position or a position explicitly passed. Also make >> and << work better with 'vartabstop'. (Christian Brabandt)

" Tests for parsing the modeline.

func Test_modeline_invalid()
  " This was reading allocated memory in the past.
  call writefile(['vi:0', 'nothing'], 'Xmodeline')
  let modeline = &modeline
  set modeline
  call assert_fails('split Xmodeline', 'E518:')
  let &modeline = modeline
  bwipe!
  call delete('Xmodeline')
endfunc