commit https://github.com/vim/vim/commit/18dfb4404a618c52ee7138630a2381aed4d66eaf Author: Bram Moolenaar <Bram@vim.org> Date: Tue May 31 22:31:23 2016 +0200 patch 7.4.1862 Problem: string() with repeated argument does not give a result usable by eval(). Solution: Refactor echo_striong and tv2string(), moving the common part to echo_string_core(). (Ken Takata)

" Test glob2regpat()

func Test_invalid()
  call assert_fails('call glob2regpat(1.33)', 'E806:')
endfunc

func Test_valid()
  call assert_equal('^foo\.', glob2regpat('foo.*'))
  call assert_equal('\.vim$', glob2regpat('*.vim'))
endfunc