Mercurial > vim

annotate src/testdir/test_tabline.vim @ 21417:53ff4dfe6e11 v8.2.1259

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patch 8.2.1259: empty group in 'tabline' may cause using an invalid pointer Commit: https://github.com/vim/vim/commit/f56c95fdad5af521887f8cd7bc15729b5355231d Author: Bram Moolenaar <Bram@vim.org> Date: Tue Jul 21 19:25:18 2020 +0200 patch 8.2.1259: empty group in 'tabline' may cause using an invalid pointer Problem: Empty group in 'tabline' may cause using an invalid pointer. Solution: Set the group start position. (closes https://github.com/vim/vim/issues/6505)
author Bram Moolenaar <Bram@vim.org>
date Tue, 21 Jul 2020 19:30:04 +0200
parents 0650d220f742
children 08940efa6b4e
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1
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2 source shared.vim
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3
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4 func TablineWithCaughtError()
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5 let s:func_in_tabline_called = 1
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6 try
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7 call eval('unknown expression')
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8 catch
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9 endtry
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10 return ''
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11 endfunc
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12
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13 func TablineWithError()
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14 let s:func_in_tabline_called = 1
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15 call eval('unknown expression')
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16 return ''
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17 endfunc
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18
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19 func Test_caught_error_in_tabline()
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20 if has('gui')
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21 set guioptions-=e
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22 endif
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23 let showtabline_save = &showtabline
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24 set showtabline=2
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25 let s:func_in_tabline_called = 0
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26 let tabline = '%{TablineWithCaughtError()}'
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27 let &tabline = tabline
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28 redraw!
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29 call assert_true(s:func_in_tabline_called)
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30 call assert_equal(tabline, &tabline)
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31 set tabline=
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32 let &showtabline = showtabline_save
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33 endfunc
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34
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35 func Test_tabline_will_be_disabled_with_error()
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36 if has('gui')
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37 set guioptions-=e
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38 endif
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39 let showtabline_save = &showtabline
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40 set showtabline=2
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41 let s:func_in_tabline_called = 0
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42 let tabline = '%{TablineWithError()}'
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43 try
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44 let &tabline = tabline
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45 redraw!
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46 catch
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47 endtry
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48 call assert_true(s:func_in_tabline_called)
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49 call assert_equal('', &tabline)
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50 set tabline=
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51 let &showtabline = showtabline_save
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52 endfunc
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53
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54 func Test_redrawtabline()
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55 if has('gui')
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56 set guioptions-=e
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57 endif
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58 let showtabline_save = &showtabline
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59 set showtabline=2
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60 set tabline=%{bufnr('$')}
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61 edit Xtabline1
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62 edit Xtabline2
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63 redraw
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64 call assert_match(bufnr('$') . '', Screenline(1))
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65 au BufAdd * redrawtabline
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66 badd Xtabline3
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67 call assert_match(bufnr('$') . '', Screenline(1))
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68
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69 set tabline=
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70 let &showtabline = showtabline_save
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71 au! Bufadd
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72 endfunc
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73
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74 " Test for the "%T" and "%X" flags in the 'tabline' option
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75 func MyTabLine()
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76 let s = ''
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77 for i in range(tabpagenr('$'))
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78 " set the tab page number (for mouse clicks)
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79 let s .= '%' . (i + 1) . 'T'
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80
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81 " the label is made by MyTabLabel()
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82 let s .= ' %{MyTabLabel(' . (i + 1) . ')} '
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83 endfor
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84
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85 " after the last tab fill with TabLineFill and reset tab page nr
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86 let s .= '%T'
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87
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88 " right-align the label to close the current tab page
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89 if tabpagenr('$') > 1
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90 let s .= '%=%Xclose'
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91 endif
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92
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93 return s
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94 endfunc
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95
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96 func MyTabLabel(n)
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97 let buflist = tabpagebuflist(a:n)
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98 let winnr = tabpagewinnr(a:n)
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99 return bufname(buflist[winnr - 1])
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100 endfunc
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101
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102 func Test_tabline_flags()
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103 if has('gui')
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104 set guioptions-=e
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105 endif
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106 set tabline=%!MyTabLine()
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107 edit Xtabline1
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108 tabnew Xtabline2
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109 redrawtabline
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110 call assert_match('^ Xtabline1 Xtabline2\s\+close$', Screenline(1))
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111 set tabline=
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112 %bw!
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113 endfunc
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114
21417
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115 function EmptyTabname()
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116 return ""
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117 endfunction
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118
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119 function MakeTabLine() abort
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120 let titles = map(range(1, tabpagenr('$')), '"%( %" . v:val . "T%{EmptyTabname()}%T %)"')
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121 let sep = 'あ'
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122 let tabpages = join(titles, sep)
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123 return tabpages .. sep .. '%=%999X X'
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124 endfunction
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125
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126 func Test_tabline_empty_group()
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127 " this was reading invalid memory
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128 set tabline=%!MakeTabLine()
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129 tabnew
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130 redraw!
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131
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132 tabclose
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133 set tabline=
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134 endfunc
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135
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136
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137
21004
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138 " vim: shiftwidth=2 sts=2 expandtab