patch 8.0.1801: MS-Windows: redirecting terminal output does not work commit https://github.com/vim/vim/commit/f25329cb94e481999e8b08d886cc0f0169e2020c Author: Bram Moolenaar <Bram@vim.org> Date: Sun May 6 21:49:32 2018 +0200 patch 8.0.1801: MS-Windows: redirecting terminal output does not work Problem: MS-Windows: redirecting terminal output does not work. Solution: Intercept the text written to the terminal and write it to the file.

" Tests for the Tcl interface.

if !has('tcl')
  finish
end

function Test_tcldo()
  " Check deleting lines does not trigger ml_get error.
  new
  call setline(1, ['one', 'two', 'three'])
  tcldo ::vim::command %d_
  bwipe!

  " Check switching to another buffer does not trigger ml_get error.
  new
  let wincount = winnr('$')
  call setline(1, ['one', 'two', 'three'])
  tcldo ::vim::command new
  call assert_equal(wincount + 1, winnr('$'))
  bwipe!
  bwipe!
endfunc