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annotate src/testdir/test_recover.vim @ 25810:2db73f521d49 v8.2.3440

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patch 8.2.3440: recover test fails if there is an old swap file Commit: https://github.com/vim/vim/commit/f2a8bafa4b815e5b4e50a25c2b3a8a24fbe8aa11 Author: Bram Moolenaar <Bram@vim.org> Date: Tue Sep 14 22:58:23 2021 +0200 patch 8.2.3440: recover test fails if there is an old swap file Problem: Recover test fails if there is an old swap file. Solution: Delete old swap files.
author Bram Moolenaar <Bram@vim.org>
date Tue, 14 Sep 2021 23:00:05 +0200
parents 088c1ddac618
children 51a1ff50bd24
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
10896
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1 " Test :recover
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2
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3 source check.vim
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4
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5 func Test_recover_root_dir()
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6 " This used to access invalid memory.
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7 split Xtest
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8 set dir=/
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9 call assert_fails('recover', 'E305:')
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10 close!
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11
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12 if has('win32') || filewritable('/') == 2
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13 " can write in / directory on MS-Windows
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14 set dir=/notexist/
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15 endif
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16 call assert_fails('split Xtest', 'E303:')
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17
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18 " No error with empty 'directory' setting.
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19 set directory=
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20 split XtestOK
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21 close!
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22
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23 set dir&
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24 endfunc
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25
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26 " Make a copy of the current swap file to "Xswap".
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27 " Return the name of the swap file.
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28 func CopySwapfile()
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29 preserve
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30 " get the name of the swap file
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31 let swname = split(execute("swapname"))[0]
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32 let swname = substitute(swname, '[[:blank:][:cntrl:]]*\(.\{-}\)[[:blank:][:cntrl:]]*$', '\1', '')
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33 " make a copy of the swap file in Xswap
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34 set binary
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35 exe 'sp ' . swname
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36 w! Xswap
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37 set nobinary
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38 return swname
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39 endfunc
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40
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41 " Inserts 10000 lines with text to fill the swap file with two levels of pointer
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42 " blocks. Then recovers from the swap file and checks all text is restored.
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43 "
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44 " We need about 10000 lines of 100 characters to get two levels of pointer
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45 " blocks.
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46 func Test_swap_file()
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47 set fileformat=unix undolevels=-1
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48 edit! Xtest
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49 let text = "\tabcdefghijklmnoparstuvwxyz0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789abcdefghijklmnoparstuvwxyz0123456789"
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50 let i = 1
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51 let linecount = 10000
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52 while i <= linecount
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53 call append(i - 1, i . text)
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54 let i += 1
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55 endwhile
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56 $delete
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57
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58 let swname = CopySwapfile()
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59
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60 new
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61 only!
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62 bwipe! Xtest
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63 call rename('Xswap', swname)
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64 recover Xtest
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65 call delete(swname)
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66 let linedollar = line('$')
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67 call assert_equal(linecount, linedollar)
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68 if linedollar < linecount
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69 let linecount = linedollar
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70 endif
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71 let i = 1
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72 while i <= linecount
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73 call assert_equal(i . text, getline(i))
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74 let i += 1
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75 endwhile
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76
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77 set undolevels&
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78 enew! | only
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79 endfunc
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80
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81 func Test_nocatch_process_still_running()
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82 " sysinfo.uptime probably only works on Linux
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83 if !has('linux')
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84 let g:skipped_reason = 'only works on Linux'
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85 return
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86 endif
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87 " the GUI dialog can't be handled
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88 if has('gui_running')
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89 let g:skipped_reason = 'only works in the terminal'
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90 return
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91 endif
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92
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93 " don't intercept existing swap file here
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94 au! SwapExists
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95
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96 " Edit a file and grab its swapfile.
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97 edit Xswaptest
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98 call setline(1, ['a', 'b', 'c'])
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99 let swname = CopySwapfile()
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100
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101 " Forget we edited this file
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102 new
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103 only!
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104 bwipe! Xswaptest
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105
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106 call rename('Xswap', swname)
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107 call feedkeys('e', 'tL')
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108 redir => editOutput
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109 edit Xswaptest
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110 redir END
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111 call assert_match('E325: ATTENTION', editOutput)
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112 call assert_match('file name: .*Xswaptest', editOutput)
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113 call assert_match('process ID: \d* (STILL RUNNING)', editOutput)
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114
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115 " Forget we edited this file
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116 new
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117 only!
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118 bwipe! Xswaptest
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119
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120 " pretend we rebooted
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121 call test_override("uptime", 0)
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122 sleep 1
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123
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124 call rename('Xswap', swname)
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125 call feedkeys('e', 'tL')
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126 redir => editOutput
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127 edit Xswaptest
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128 redir END
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129 call assert_match('E325: ATTENTION', editOutput)
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130 call assert_notmatch('(STILL RUNNING)', editOutput)
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131
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132 call test_override("ALL", 0)
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133 call delete(swname)
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134 endfunc
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135
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136 " Test for :recover with multiple swap files
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137 func Test_recover_multiple_swap_files()
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138 CheckUnix
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139 new Xfile1
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140 call setline(1, ['a', 'b', 'c'])
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141 preserve
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142 let b = readblob(swapname(''))
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143 call writefile(b, '.Xfile1.swm')
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144 call writefile(b, '.Xfile1.swn')
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145 call writefile(b, '.Xfile1.swo')
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146 %bw!
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147 call feedkeys(":recover Xfile1\<CR>3\<CR>q", 'xt')
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148 call assert_equal(['a', 'b', 'c'], getline(1, '$'))
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149 " try using out-of-range number to select a swap file
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150 bw!
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151 call feedkeys(":recover Xfile1\<CR>4\<CR>q", 'xt')
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152 call assert_equal('Xfile1', @%)
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153 call assert_equal([''], getline(1, '$'))
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154 bw!
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155 call feedkeys(":recover Xfile1\<CR>0\<CR>q", 'xt')
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156 call assert_equal('Xfile1', @%)
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157 call assert_equal([''], getline(1, '$'))
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diff changeset
158 bw!
24814
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159
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160 call delete('.Xfile1.swm')
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161 call delete('.Xfile1.swn')
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162 call delete('.Xfile1.swo')
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163 endfunc
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164
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165 " Test for :recover using an empty swap file
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166 func Test_recover_empty_swap_file()
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167 CheckUnix
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168 call writefile([], '.Xfile1.swp')
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169 let msg = execute('recover Xfile1')
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170 call assert_match('Unable to read block 0 from .Xfile1.swp', msg)
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171 call assert_equal('Xfile1', @%)
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172 bw!
25810
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173
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174 " make sure there are no old swap files laying around
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175 for f in glob('.sw?', 0, 1)
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176 call delete(f)
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177 endfor
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178
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179 " :recover from an empty buffer
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180 call assert_fails('recover', 'E305:')
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181 call delete('.Xfile1.swp')
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182 endfunc
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183
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184 " Test for :recover using a corrupted swap file
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185 " Refer to the comments in the memline.c file for the swap file headers
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diff changeset
186 " definition.
24814
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diff changeset
187 func Test_recover_corrupted_swap_file()
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188 CheckUnix
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189
24814
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190 " recover using a partial swap file
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191 call writefile(0z1234, '.Xfile1.swp')
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192 call assert_fails('recover Xfile1', 'E295:')
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193 bw!
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194
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195 " recover using invalid content in the swap file
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196 call writefile([repeat('1', 2*1024)], '.Xfile1.swp')
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197 call assert_fails('recover Xfile1', 'E307:')
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198 call delete('.Xfile1.swp')
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199
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200 " :recover using a swap file with a corrupted header
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diff changeset
201 edit Xfile1
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202 preserve
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203 let sn = swapname('')
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204 let b = readblob(sn)
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205 let save_b = copy(b)
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diff changeset
206 bw!
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diff changeset
207
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diff changeset
208 " Not all fields are written in a system-independent manner. Detect whether
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diff changeset
209 " the test is running on a little or big-endian system, so the correct
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diff changeset
210 " corruption values can be set.
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diff changeset
211 let little_endian = b[1008:1011] == 0z33323130
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diff changeset
212 " The swap file header fields can be either 32-bit or 64-bit.
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diff changeset
213 let system_64bit = b[1012:1015] == 0z00000000
24828
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diff changeset
214
24886
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diff changeset
215 " clear the B0_MAGIC_LONG field
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diff changeset
216 if system_64bit
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diff changeset
217 let b[1008:1015] = 0z00000000.00000000
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diff changeset
218 else
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diff changeset
219 let b[1008:1011] = 0z00000000
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diff changeset
220 endif
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diff changeset
221 call writefile(b, sn)
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diff changeset
222 let msg = execute('recover Xfile1')
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diff changeset
223 call assert_match('the file has been damaged', msg)
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diff changeset
224 call assert_equal('Xfile1', @%)
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diff changeset
225 call assert_equal([''], getline(1, '$'))
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diff changeset
226 bw!
24844
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diff changeset
227
24886
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diff changeset
228 " reduce the page size
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diff changeset
229 let b = copy(save_b)
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diff changeset
230 let b[12:15] = 0z00010000
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diff changeset
231 call writefile(b, sn)
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diff changeset
232 let msg = execute('recover Xfile1')
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diff changeset
233 call assert_match('page size is smaller than minimum value', msg)
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diff changeset
234 call assert_equal('Xfile1', @%)
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diff changeset
235 call assert_equal([''], getline(1, '$'))
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diff changeset
236 bw!
24828
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diff changeset
237
24886
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diff changeset
238 " clear the pointer ID
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diff changeset
239 let b = copy(save_b)
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diff changeset
240 let b[4096:4097] = 0z0000
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diff changeset
241 call writefile(b, sn)
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diff changeset
242 call assert_fails('recover Xfile1', 'E310:')
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diff changeset
243 call assert_equal('Xfile1', @%)
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diff changeset
244 call assert_equal([''], getline(1, '$'))
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diff changeset
245 bw!
24844
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diff changeset
246
24886
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diff changeset
247 " set the number of pointers in a pointer block to zero
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diff changeset
248 let b = copy(save_b)
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diff changeset
249 let b[4098:4099] = 0z0000
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diff changeset
250 call writefile(b, sn)
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diff changeset
251 call assert_fails('recover Xfile1', 'E312:')
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diff changeset
252 call assert_equal('Xfile1', @%)
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diff changeset
253 call assert_equal(['???EMPTY BLOCK'], getline(1, '$'))
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diff changeset
254 bw!
24844
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diff changeset
255
24886
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diff changeset
256 " set the block number in a pointer entry to a negative number
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diff changeset
257 let b = copy(save_b)
25086
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258 if system_64bit
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diff changeset
259 let b[4104:4111] = little_endian ? 0z00000000.00000080 : 0z80000000.00000000
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diff changeset
260 else
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diff changeset
261 let b[4104:4107] = little_endian ? 0z00000080 : 0z80000000
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diff changeset
262 endif
24886
f2cb4885cecf patch 8.2.2981: recovery test is not run on big-endian systems
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diff changeset
263 call writefile(b, sn)
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diff changeset
264 call assert_fails('recover Xfile1', 'E312:')
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diff changeset
265 call assert_equal('Xfile1', @%)
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diff changeset
266 call assert_equal(['???LINES MISSING'], getline(1, '$'))
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diff changeset
267 bw!
24828
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diff changeset
268
24886
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diff changeset
269 " clear the data block ID
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diff changeset
270 let b = copy(save_b)
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diff changeset
271 let b[8192:8193] = 0z0000
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diff changeset
272 call writefile(b, sn)
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diff changeset
273 call assert_fails('recover Xfile1', 'E312:')
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diff changeset
274 call assert_equal('Xfile1', @%)
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diff changeset
275 call assert_equal(['???BLOCK MISSING'], getline(1, '$'))
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diff changeset
276 bw!
24844
250c6ab76d19 patch 8.2.2960: swap file recovery not sufficiently tested
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diff changeset
277
24886
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diff changeset
278 " set the number of lines in the data block to zero
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diff changeset
279 let b = copy(save_b)
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diff changeset
280 if system_64bit
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diff changeset
281 let b[8208:8215] = 0z00000000.00000000
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diff changeset
282 else
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diff changeset
283 let b[8208:8211] = 0z00000000
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diff changeset
284 endif
24886
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diff changeset
285 call writefile(b, sn)
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diff changeset
286 call assert_fails('recover Xfile1', 'E312:')
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diff changeset
287 call assert_equal('Xfile1', @%)
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diff changeset
288 call assert_equal(['??? from here until ???END lines may have been inserted/deleted',
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diff changeset
289 \ '???END'], getline(1, '$'))
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diff changeset
290 bw!
24844
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diff changeset
291
24886
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diff changeset
292 " use an invalid text start for the lines in a data block
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diff changeset
293 let b = copy(save_b)
25086
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diff changeset
294 if system_64bit
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diff changeset
295 let b[8216:8219] = 0z00000000
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diff changeset
296 else
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diff changeset
297 let b[8212:8215] = 0z00000000
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diff changeset
298 endif
24886
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diff changeset
299 call writefile(b, sn)
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diff changeset
300 call assert_fails('recover Xfile1', 'E312:')
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diff changeset
301 call assert_equal('Xfile1', @%)
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diff changeset
302 call assert_equal(['???'], getline(1, '$'))
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diff changeset
303 bw!
24844
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diff changeset
304
24886
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diff changeset
305 " use an incorrect text end (db_txt_end) for the data block
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diff changeset
306 let b = copy(save_b)
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diff changeset
307 let b[8204:8207] = little_endian ? 0z80000000 : 0z00000080
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diff changeset
308 call writefile(b, sn)
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diff changeset
309 call assert_fails('recover Xfile1', 'E312:')
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diff changeset
310 call assert_equal('Xfile1', @%)
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diff changeset
311 call assert_equal(['??? from here until ???END lines may be messed up', '',
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diff changeset
312 \ '???END'], getline(1, '$'))
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diff changeset
313 bw!
24828
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diff changeset
314
24886
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diff changeset
315 " remove the data block
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diff changeset
316 let b = copy(save_b)
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diff changeset
317 call writefile(b[:8191], sn)
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diff changeset
318 call assert_fails('recover Xfile1', 'E312:')
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diff changeset
319 call assert_equal('Xfile1', @%)
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diff changeset
320 call assert_equal(['???MANY LINES MISSING'], getline(1, '$'))
24828
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diff changeset
321
24814
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diff changeset
322 bw!
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diff changeset
323 call delete(sn)
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diff changeset
324 endfunc
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diff changeset
325
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diff changeset
326 " Test for :recover using an encrypted swap file
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diff changeset
327 func Test_recover_encrypted_swap_file()
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diff changeset
328 CheckUnix
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diff changeset
329
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diff changeset
330 " Recover an encrypted file from the swap file without the original file
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diff changeset
331 new Xfile1
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diff changeset
332 call feedkeys(":X\<CR>vim\<CR>vim\<CR>", 'xt')
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diff changeset
333 call setline(1, ['aaa', 'bbb', 'ccc'])
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diff changeset
334 preserve
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diff changeset
335 let b = readblob('.Xfile1.swp')
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diff changeset
336 call writefile(b, '.Xfile1.swm')
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diff changeset
337 bw!
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diff changeset
338 call feedkeys(":recover Xfile1\<CR>vim\<CR>\<CR>", 'xt')
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diff changeset
339 call assert_equal(['aaa', 'bbb', 'ccc'], getline(1, '$'))
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diff changeset
340 bw!
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diff changeset
341 call delete('.Xfile1.swm')
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diff changeset
342
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diff changeset
343 " Recover an encrypted file from the swap file with the original file
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diff changeset
344 new Xfile1
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diff changeset
345 call feedkeys(":X\<CR>vim\<CR>vim\<CR>", 'xt')
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diff changeset
346 call setline(1, ['aaa', 'bbb', 'ccc'])
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diff changeset
347 update
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diff changeset
348 call setline(1, ['111', '222', '333'])
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diff changeset
349 preserve
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diff changeset
350 let b = readblob('.Xfile1.swp')
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diff changeset
351 call writefile(b, '.Xfile1.swm')
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diff changeset
352 bw!
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diff changeset
353 call feedkeys(":recover Xfile1\<CR>vim\<CR>\<CR>", 'xt')
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diff changeset
354 call assert_equal(['111', '222', '333'], getline(1, '$'))
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diff changeset
355 call assert_true(&modified)
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diff changeset
356 bw!
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diff changeset
357 call delete('.Xfile1.swm')
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diff changeset
358 call delete('Xfile1')
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diff changeset
359 endfunc
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diff changeset
360
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diff changeset
361 " Test for :recover using a unreadable swap file
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diff changeset
362 func Test_recover_unreadble_swap_file()
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diff changeset
363 CheckUnix
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diff changeset
364 CheckNotRoot
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diff changeset
365 new Xfile1
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diff changeset
366 let b = readblob('.Xfile1.swp')
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diff changeset
367 call writefile(b, '.Xfile1.swm')
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diff changeset
368 bw!
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diff changeset
369 call setfperm('.Xfile1.swm', '-w-------')
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diff changeset
370 call assert_fails('recover Xfile1', 'E306:')
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diff changeset
371 call delete('.Xfile1.swm')
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diff changeset
372 endfunc
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diff changeset
373
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diff changeset
374 " Test for using :recover when the original file and the swap file have the
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diff changeset
375 " same contents.
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diff changeset
376 func Test_recover_unmodified_file()
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diff changeset
377 CheckUnix
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diff changeset
378 call writefile(['aaa', 'bbb', 'ccc'], 'Xfile1')
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diff changeset
379 edit Xfile1
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diff changeset
380 preserve
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diff changeset
381 let b = readblob('.Xfile1.swp')
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382 %bw!
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383 call writefile(b, '.Xfile1.swz')
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384 let msg = execute('recover Xfile1')
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385 call assert_equal(['aaa', 'bbb', 'ccc'], getline(1, '$'))
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386 call assert_false(&modified)
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387 call assert_match('Buffer contents equals file contents', msg)
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388 bw!
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389 call delete('Xfile1')
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390 call delete('.Xfile1.swz')
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391 endfunc
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392
24844
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393 " Test for recovering a file when editing a symbolically linked file
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394 func Test_recover_symbolic_link()
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395 CheckUnix
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396 call writefile(['aaa', 'bbb', 'ccc'], 'Xfile1')
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397 silent !ln -s Xfile1 Xfile2
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398 edit Xfile2
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399 call assert_equal('.Xfile1.swp', fnamemodify(swapname(''), ':t'))
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400 preserve
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401 let b = readblob('.Xfile1.swp')
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402 %bw!
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403 call writefile([], 'Xfile1')
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404 call writefile(b, '.Xfile1.swp')
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405 silent! recover Xfile2
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406 call assert_equal(['aaa', 'bbb', 'ccc'], getline(1, '$'))
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407 call assert_true(&modified)
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408 update
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409 %bw!
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410 call assert_equal(['aaa', 'bbb', 'ccc'], readfile('Xfile1'))
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411 call delete('Xfile1')
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412 call delete('Xfile2')
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413 call delete('.Xfile1.swp')
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414 endfunc
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415
24870
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416 " Test for recovering a file when an autocmd moves the cursor to an invalid
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417 " line. This used to result in an internal error (E315) which is fixed
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418 " by 8.2.2966.
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419 func Test_recover_invalid_cursor_pos()
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420 call writefile([], 'Xfile1')
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421 edit Xfile1
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422 preserve
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423 let b = readblob('.Xfile1.swp')
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424 bw!
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425 augroup Test
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426 au!
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427 au BufReadPost Xfile1 normal! 3G
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428 augroup END
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429 call writefile(range(1, 3), 'Xfile1')
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430 call writefile(b, '.Xfile1.swp')
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431 try
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432 recover Xfile1
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433 catch /E308:/
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434 " this test is for the :E315 internal error.
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435 " ignore the 'E308: Original file may have been changed' error
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436 endtry
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437 redraw!
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438 augroup Test
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439 au!
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440 augroup END
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441 augroup! Test
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442 call delete('Xfile1')
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443 call delete('.Xfile1.swp')
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444 endfunc
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445
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446 " Test for recovering a buffer without a name
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447 func Test_noname_buffer()
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448 new
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449 call setline(1, ['one', 'two'])
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450 preserve
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451 let sn = swapname('')
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452 let b = readblob(sn)
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453 bw!
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454 call writefile(b, sn)
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455 exe "recover " .. sn
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456 call assert_equal(['one', 'two'], getline(1, '$'))
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457 call delete(sn)
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458 endfunc
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459
21765
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460 " vim: shiftwidth=2 sts=2 expandtab