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view src/testdir/test_unlet.vim @ 13925:eb264a775071 v8.0.1833

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patch 8.0.1833: X11: ":echo 3.14" gives E806 commit https://github.com/vim/vim/commit/889fe2c2b9ba5c92b7e862a4aafbd863585fd633 Author: Bram Moolenaar <Bram@vim.org> Date: Sun May 13 16:23:40 2018 +0200 patch 8.0.1833: X11: ":echo 3.14" gives E806 Problem: X11: ":echo 3.14" gives E806. Solution: set LC_NUMERIC to "C". (Dominique Pelle, closes https://github.com/vim/vim/issues/2368)
author Christian Brabandt <cb@256bit.org>
date Sun, 13 May 2018 16:30:06 +0200
parents e4d5726e1678
children a94bc6a7b29e
line wrap: on
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" Tests for :unlet

func Test_read_only()
  " these caused a crash
  call assert_fails('unlet count', 'E795:')
  call assert_fails('unlet errmsg', 'E795:')
endfunc

func Test_existing()
  let does_exist = 1
  call assert_true(exists('does_exist'))
  unlet does_exist
  call assert_false(exists('does_exist'))
endfunc

func Test_not_existing()
  unlet! does_not_exist
  call assert_fails('unlet does_not_exist', 'E108:')
endfunc

func Test_unlet_fails()
  call assert_fails('unlet v:["count"]', 'E46:')
endfunc

func Test_unlet_env()
  let envcmd = has('win32') ? 'set' : 'env'

  let $FOOBAR = 'test'
  let found = 0
  for kv in split(system(envcmd), "\r*\n")
    if kv == 'FOOBAR=test'
      let found = 1
    endif
  endfor
  call assert_equal(1, found)

  unlet $FOOBAR
  let found = 0
  for kv in split(system(envcmd), "\r*\n")
    if kv == 'FOOBAR=test'
      let found = 1
    endif
  endfor
  call assert_equal(0, found)

  unlet $MUST_NOT_BE_AN_ERROR
endfunc