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comparison src/testdir/test_recover.vim @ 24844:250c6ab76d19 v8.2.2960

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patch 8.2.2960: swap file recovery not sufficiently tested Commit: https://github.com/vim/vim/commit/8cf02e5cf8fb14a5009f12e7af0a47617a0ce88d Author: Yegappan Lakshmanan <yegappan@yahoo.com> Date: Mon Jun 7 20:41:22 2021 +0200 patch 8.2.2960: swap file recovery not sufficiently tested Problem: Swap file recovery not sufficiently tested. Solution: Add a few more tests. (Yegappan Lakshmanan, closes https://github.com/vim/vim/issues/8339)
author Bram Moolenaar <Bram@vim.org>
date Mon, 07 Jun 2021 20:45:03 +0200
parents e0c43439fea6
children 13812db714fa
comparison
equal deleted inserted replaced
24843:1b6471c91081 24844:250c6ab76d19
144 call writefile(b, '.Xfile1.swn') 144 call writefile(b, '.Xfile1.swn')
145 call writefile(b, '.Xfile1.swo') 145 call writefile(b, '.Xfile1.swo')
146 %bw! 146 %bw!
147 call feedkeys(":recover Xfile1\<CR>3\<CR>q", 'xt') 147 call feedkeys(":recover Xfile1\<CR>3\<CR>q", 'xt')
148 call assert_equal(['a', 'b', 'c'], getline(1, '$')) 148 call assert_equal(['a', 'b', 'c'], getline(1, '$'))
149 " try using out-of-range number to select a swap file
150 bw!
151 call feedkeys(":recover Xfile1\<CR>4\<CR>q", 'xt')
152 call assert_equal('Xfile1', @%)
153 call assert_equal([''], getline(1, '$'))
154 bw!
155 call feedkeys(":recover Xfile1\<CR>0\<CR>q", 'xt')
156 call assert_equal('Xfile1', @%)
157 call assert_equal([''], getline(1, '$'))
158 bw!
149 159
150 call delete('.Xfile1.swm') 160 call delete('.Xfile1.swm')
151 call delete('.Xfile1.swn') 161 call delete('.Xfile1.swn')
152 call delete('.Xfile1.swo') 162 call delete('.Xfile1.swo')
153 endfunc 163 endfunc
164 call assert_fails('recover', 'E305:') 174 call assert_fails('recover', 'E305:')
165 call delete('.Xfile1.swp') 175 call delete('.Xfile1.swp')
166 endfunc 176 endfunc
167 177
168 " Test for :recover using a corrupted swap file 178 " Test for :recover using a corrupted swap file
179 " Refer to the comments in the memline.c file for the swap file headers
180 " definition.
169 func Test_recover_corrupted_swap_file() 181 func Test_recover_corrupted_swap_file()
170 CheckUnix 182 CheckUnix
171 183
172 " recover using a partial swap file 184 " recover using a partial swap file
173 call writefile(0z1234, '.Xfile1.swp') 185 call writefile(0z1234, '.Xfile1.swp')
195 " clear the B0_MAGIC_LONG field 207 " clear the B0_MAGIC_LONG field
196 let b[1008:1011] = 0z00000000 208 let b[1008:1011] = 0z00000000
197 call writefile(b, sn) 209 call writefile(b, sn)
198 let msg = execute('recover Xfile1') 210 let msg = execute('recover Xfile1')
199 call assert_match('the file has been damaged', msg) 211 call assert_match('the file has been damaged', msg)
212 call assert_equal('Xfile1', @%)
213 call assert_equal([''], getline(1, '$'))
214 bw!
215
216 " reduce the page size
217 let b = copy(save_b)
218 let b[12:15] = 0z00010000
219 call writefile(b, sn)
220 let msg = execute('recover Xfile1')
221 call assert_match('page size is smaller than minimum value', msg)
222 call assert_equal('Xfile1', @%)
223 call assert_equal([''], getline(1, '$'))
200 bw! 224 bw!
201 225
202 " clear the pointer ID 226 " clear the pointer ID
203 let b = copy(save_b) 227 let b = copy(save_b)
204 let b[4096:4097] = 0z0000 228 let b[4096:4097] = 0z0000
205 call writefile(b, sn) 229 call writefile(b, sn)
206 call assert_fails('recover Xfile1', 'E310:') 230 call assert_fails('recover Xfile1', 'E310:')
231 call assert_equal('Xfile1', @%)
232 call assert_equal([''], getline(1, '$'))
233 bw!
234
235 " set the number of pointers in a pointer block to zero
236 let b = copy(save_b)
237 let b[4098:4099] = 0z0000
238 call writefile(b, sn)
239 call assert_fails('recover Xfile1', 'E312:')
240 call assert_equal('Xfile1', @%)
241 call assert_equal(['???EMPTY BLOCK'], getline(1, '$'))
242 bw!
243
244 " set the block number in a pointer entry to a negative number
245 let b = copy(save_b)
246 let b[4104:4111] = 0z00000000.00000080
247 call writefile(b, sn)
248 call assert_fails('recover Xfile1', 'E312:')
249 call assert_equal('Xfile1', @%)
250 call assert_equal(['???LINES MISSING'], getline(1, '$'))
207 bw! 251 bw!
208 252
209 " clear the data block ID 253 " clear the data block ID
210 let b = copy(save_b) 254 let b = copy(save_b)
211 let b[8192:8193] = 0z0000 255 let b[8192:8193] = 0z0000
212 call writefile(b, sn) 256 call writefile(b, sn)
213 call assert_fails('recover Xfile1', 'E312:') 257 call assert_fails('recover Xfile1', 'E312:')
258 call assert_equal('Xfile1', @%)
259 call assert_equal(['???BLOCK MISSING'], getline(1, '$'))
260 bw!
261
262 " set the number of lines in the data block to zero
263 let b = copy(save_b)
264 let b[8208:8211] = 0z00000000
265 call writefile(b, sn)
266 call assert_fails('recover Xfile1', 'E312:')
267 call assert_equal('Xfile1', @%)
268 call assert_equal(['??? from here until ???END lines may have been inserted/deleted',
269 \ '???END'], getline(1, '$'))
270 bw!
271
272 " use an invalid text start for the lines in a data block
273 let b = copy(save_b)
274 let b[8216:8219] = 0z00000000
275 call writefile(b, sn)
276 call assert_fails('recover Xfile1', 'E312:')
277 call assert_equal('Xfile1', @%)
278 call assert_equal(['???'], getline(1, '$'))
279 bw!
280
281 " use an incorrect text end (db_txt_end) for the data block
282 let b = copy(save_b)
283 let b[8204:8207] = 0z80000000
284 call writefile(b, sn)
285 call assert_fails('recover Xfile1', 'E312:')
286 call assert_equal('Xfile1', @%)
287 call assert_equal(['??? from here until ???END lines may be messed up', '',
288 \ '???END'], getline(1, '$'))
214 bw! 289 bw!
215 290
216 " remove the data block 291 " remove the data block
217 let b = copy(save_b) 292 let b = copy(save_b)
218 call writefile(b[:8191], sn) 293 call writefile(b[:8191], sn)
219 call assert_fails('recover Xfile1', 'E312:') 294 call assert_fails('recover Xfile1', 'E312:')
295 call assert_equal('Xfile1', @%)
296 call assert_equal(['???MANY LINES MISSING'], getline(1, '$'))
220 endif 297 endif
221 298
222 bw! 299 bw!
223 call delete(sn) 300 call delete(sn)
224 endfunc 301 endfunc
288 bw! 365 bw!
289 call delete('Xfile1') 366 call delete('Xfile1')
290 call delete('.Xfile1.swz') 367 call delete('.Xfile1.swz')
291 endfunc 368 endfunc
292 369
370 " Test for recovering a file when editing a symbolically linked file
371 func Test_recover_symbolic_link()
372 CheckUnix
373 call writefile(['aaa', 'bbb', 'ccc'], 'Xfile1')
374 silent !ln -s Xfile1 Xfile2
375 edit Xfile2
376 call assert_equal('.Xfile1.swp', fnamemodify(swapname(''), ':t'))
377 preserve
378 let b = readblob('.Xfile1.swp')
379 %bw!
380 call writefile([], 'Xfile1')
381 call writefile(b, '.Xfile1.swp')
382 silent! recover Xfile2
383 call assert_equal(['aaa', 'bbb', 'ccc'], getline(1, '$'))
384 call assert_true(&modified)
385 update
386 %bw!
387 call assert_equal(['aaa', 'bbb', 'ccc'], readfile('Xfile1'))
388 call delete('Xfile1')
389 call delete('Xfile2')
390 call delete('.Xfile1.swp')
391 endfunc
392
293 " vim: shiftwidth=2 sts=2 expandtab 393 " vim: shiftwidth=2 sts=2 expandtab