summaryrefslogtreecommitdiffstats
path: root/src/testdir/test_backspace_opt.vim
blob: fd81f42b66cd9392dd2b83e65fb329511616c7e8 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
" Tests for 'backspace' settings

:func Exec(expr)
  let str=''
  try
    exec a:expr
  catch /.*/
    let str=v:exception
  endtry
  return str
:endfunc

func Test_backspace_option()
  set backspace=
  call assert_equal('', &backspace)
  set backspace=indent
  call assert_equal('indent', &backspace)
  set backspace=eol
  call assert_equal('eol', &backspace)
  set backspace=start
  call assert_equal('start', &backspace)
  " Add the value
  set backspace=
  set backspace=indent
  call assert_equal('indent', &backspace)
  set backspace+=eol
  call assert_equal('indent,eol', &backspace)
  set backspace+=start
  call assert_equal('indent,eol,start', &backspace)
  " Delete the value
  set backspace-=indent
  call assert_equal('eol,start', &backspace)
  set backspace-=start
  call assert_equal('eol', &backspace)
  set backspace-=eol
  call assert_equal('', &backspace)
  " Check the error
  call assert_equal(0, match(Exec('set backspace=ABC'), '.*E474'))
  call assert_equal(0, match(Exec('set backspace+=def'), '.*E474'))
  " NOTE: Vim doesn't check following error...
  "call assert_equal(0, match(Exec('set backspace-=ghi'), '.*E474'))

  " Check backwards compatibility with version 5.4 and earlier
  set backspace=0
  call assert_equal('0', &backspace)
  set backspace=1
  call assert_equal('1', &backspace)
  set backspace=2
  call assert_equal('2', &backspace)
  call assert_false(match(Exec('set backspace=3'), '.*E474'))
  call assert_false(match(Exec('set backspace=10'), '.*E474'))

  " Cleared when 'compatible' is set
  set compatible
  call assert_equal('', &backspace)
  set nocompatible viminfo+=nviminfo
endfunc

" vim: shiftwidth=2 sts=2 expandtab