1#!/bin/sh
2
3test_description='Test git update-ref error handling'
4. ./test-lib.sh
5
6# Create some references, perhaps run pack-refs --all, then try to
7# create some more references. Ensure that the second creation fails
8# with the correct error message.
9# Usage: test_update_rejected <before> <pack> <create> <error>
10# <before> is a ws-separated list of refs to create before the test
11# <pack> (true or false) tells whether to pack the refs before the test
12# <create> is a list of variables to attempt creating
13# <error> is a string to look for in the stderr of update-ref.
14# All references are created in the namespace specified by the current
15# value of $prefix.
16test_update_rejected () {
17 before="$1" &&
18 pack="$2" &&
19 create="$3" &&
20 error="$4" &&
21 printf "create $prefix/%s $C\n" $before |
22 git update-ref --stdin &&
23 git for-each-ref $prefix >unchanged &&
24 if $pack
25 then
26 git pack-refs --all
27 fi &&
28 printf "create $prefix/%s $C\n" $create >input &&
29 test_must_fail git update-ref --stdin <input 2>output.err &&
30 test_i18ngrep -F "$error" output.err &&
31 git for-each-ref $prefix >actual &&
32 test_cmp unchanged actual
33}
34
35# Test adding and deleting D/F-conflicting references in a single
36# transaction.
37df_test() {
38 prefix="$1"
39 pack=: symadd=false symdel=false add_del=false addref= delref=
40 shift
41 while test $# -gt 0
42 do
43 case "$1" in
44 --pack)
45 pack="git pack-refs --all"
46 shift
47 ;;
48 --sym-add)
49 # Perform the add via a symbolic reference
50 symadd=true
51 shift
52 ;;
53 --sym-del)
54 # Perform the del via a symbolic reference
55 symdel=true
56 shift
57 ;;
58 --del-add)
59 # Delete first reference then add second
60 add_del=false
61 delref="$prefix/r/$2"
62 addref="$prefix/r/$3"
63 shift 3
64 ;;
65 --add-del)
66 # Add first reference then delete second
67 add_del=true
68 addref="$prefix/r/$2"
69 delref="$prefix/r/$3"
70 shift 3
71 ;;
72 *)
73 echo 1>&2 "Extra args to df_test: $*"
74 return 1
75 ;;
76 esac
77 done
78 git update-ref "$delref" $C &&
79 if $symadd
80 then
81 addname="$prefix/s/symadd" &&
82 git symbolic-ref "$addname" "$addref"
83 else
84 addname="$addref"
85 fi &&
86 if $symdel
87 then
88 delname="$prefix/s/symdel" &&
89 git symbolic-ref "$delname" "$delref"
90 else
91 delname="$delref"
92 fi &&
93 cat >expected-err <<-EOF &&
94 fatal: cannot lock ref $SQ$addname$SQ: $SQ$delref$SQ exists; cannot create $SQ$addref$SQ
95 EOF
96 $pack &&
97 if $add_del
98 then
99 printf "%s\n" "create $addname $D" "delete $delname"
100 else
101 printf "%s\n" "delete $delname" "create $addname $D"
102 fi >commands &&
103 test_must_fail git update-ref --stdin <commands 2>output.err &&
104 test_i18ncmp expected-err output.err &&
105 printf "%s\n" "$C $delref" >expected-refs &&
106 git for-each-ref --format="%(objectname) %(refname)" $prefix/r >actual-refs &&
107 test_cmp expected-refs actual-refs
108}
109
110test_expect_success 'setup' '
111
112 git commit --allow-empty -m Initial &&
113 C=$(git rev-parse HEAD) &&
114 git commit --allow-empty -m Second &&
115 D=$(git rev-parse HEAD) &&
116 git commit --allow-empty -m Third &&
117 E=$(git rev-parse HEAD)
118'
119
120test_expect_success 'existing loose ref is a simple prefix of new' '
121
122 prefix=refs/1l &&
123 test_update_rejected "a c e" false "b c/x d" \
124 "$SQ$prefix/c$SQ exists; cannot create $SQ$prefix/c/x$SQ"
125
126'
127
128test_expect_success 'existing packed ref is a simple prefix of new' '
129
130 prefix=refs/1p &&
131 test_update_rejected "a c e" true "b c/x d" \
132 "$SQ$prefix/c$SQ exists; cannot create $SQ$prefix/c/x$SQ"
133
134'
135
136test_expect_success 'existing loose ref is a deeper prefix of new' '
137
138 prefix=refs/2l &&
139 test_update_rejected "a c e" false "b c/x/y d" \
140 "$SQ$prefix/c$SQ exists; cannot create $SQ$prefix/c/x/y$SQ"
141
142'
143
144test_expect_success 'existing packed ref is a deeper prefix of new' '
145
146 prefix=refs/2p &&
147 test_update_rejected "a c e" true "b c/x/y d" \
148 "$SQ$prefix/c$SQ exists; cannot create $SQ$prefix/c/x/y$SQ"
149
150'
151
152test_expect_success 'new ref is a simple prefix of existing loose' '
153
154 prefix=refs/3l &&
155 test_update_rejected "a c/x e" false "b c d" \
156 "$SQ$prefix/c/x$SQ exists; cannot create $SQ$prefix/c$SQ"
157
158'
159
160test_expect_success 'new ref is a simple prefix of existing packed' '
161
162 prefix=refs/3p &&
163 test_update_rejected "a c/x e" true "b c d" \
164 "$SQ$prefix/c/x$SQ exists; cannot create $SQ$prefix/c$SQ"
165
166'
167
168test_expect_success 'new ref is a deeper prefix of existing loose' '
169
170 prefix=refs/4l &&
171 test_update_rejected "a c/x/y e" false "b c d" \
172 "$SQ$prefix/c/x/y$SQ exists; cannot create $SQ$prefix/c$SQ"
173
174'
175
176test_expect_success 'new ref is a deeper prefix of existing packed' '
177
178 prefix=refs/4p &&
179 test_update_rejected "a c/x/y e" true "b c d" \
180 "$SQ$prefix/c/x/y$SQ exists; cannot create $SQ$prefix/c$SQ"
181
182'
183
184test_expect_success 'one new ref is a simple prefix of another' '
185
186 prefix=refs/5 &&
187 test_update_rejected "a e" false "b c c/x d" \
188 "cannot process $SQ$prefix/c$SQ and $SQ$prefix/c/x$SQ at the same time"
189
190'
191
192test_expect_success 'empty directory should not fool rev-parse' '
193 prefix=refs/e-rev-parse &&
194 git update-ref $prefix/foo $C &&
195 git pack-refs --all &&
196 mkdir -p .git/$prefix/foo/bar/baz &&
197 echo "$C" >expected &&
198 git rev-parse $prefix/foo >actual &&
199 test_cmp expected actual
200'
201
202test_expect_success 'empty directory should not fool for-each-ref' '
203 prefix=refs/e-for-each-ref &&
204 git update-ref $prefix/foo $C &&
205 git for-each-ref $prefix >expected &&
206 git pack-refs --all &&
207 mkdir -p .git/$prefix/foo/bar/baz &&
208 git for-each-ref $prefix >actual &&
209 test_cmp expected actual
210'
211
212test_expect_success 'empty directory should not fool create' '
213 prefix=refs/e-create &&
214 mkdir -p .git/$prefix/foo/bar/baz &&
215 printf "create %s $C\n" $prefix/foo |
216 git update-ref --stdin
217'
218
219test_expect_success 'empty directory should not fool verify' '
220 prefix=refs/e-verify &&
221 git update-ref $prefix/foo $C &&
222 git pack-refs --all &&
223 mkdir -p .git/$prefix/foo/bar/baz &&
224 printf "verify %s $C\n" $prefix/foo |
225 git update-ref --stdin
226'
227
228test_expect_success 'empty directory should not fool 1-arg update' '
229 prefix=refs/e-update-1 &&
230 git update-ref $prefix/foo $C &&
231 git pack-refs --all &&
232 mkdir -p .git/$prefix/foo/bar/baz &&
233 printf "update %s $D\n" $prefix/foo |
234 git update-ref --stdin
235'
236
237test_expect_success 'empty directory should not fool 2-arg update' '
238 prefix=refs/e-update-2 &&
239 git update-ref $prefix/foo $C &&
240 git pack-refs --all &&
241 mkdir -p .git/$prefix/foo/bar/baz &&
242 printf "update %s $D $C\n" $prefix/foo |
243 git update-ref --stdin
244'
245
246test_expect_success 'empty directory should not fool 0-arg delete' '
247 prefix=refs/e-delete-0 &&
248 git update-ref $prefix/foo $C &&
249 git pack-refs --all &&
250 mkdir -p .git/$prefix/foo/bar/baz &&
251 printf "delete %s\n" $prefix/foo |
252 git update-ref --stdin
253'
254
255test_expect_success 'empty directory should not fool 1-arg delete' '
256 prefix=refs/e-delete-1 &&
257 git update-ref $prefix/foo $C &&
258 git pack-refs --all &&
259 mkdir -p .git/$prefix/foo/bar/baz &&
260 printf "delete %s $C\n" $prefix/foo |
261 git update-ref --stdin
262'
263
264test_expect_success 'D/F conflict prevents add long + delete short' '
265 df_test refs/df-al-ds --add-del foo/bar foo
266'
267
268test_expect_success 'D/F conflict prevents add short + delete long' '
269 df_test refs/df-as-dl --add-del foo foo/bar
270'
271
272test_expect_success 'D/F conflict prevents delete long + add short' '
273 df_test refs/df-dl-as --del-add foo/bar foo
274'
275
276test_expect_success 'D/F conflict prevents delete short + add long' '
277 df_test refs/df-ds-al --del-add foo foo/bar
278'
279
280test_expect_success 'D/F conflict prevents add long + delete short packed' '
281 df_test refs/df-al-dsp --pack --add-del foo/bar foo
282'
283
284test_expect_success 'D/F conflict prevents add short + delete long packed' '
285 df_test refs/df-as-dlp --pack --add-del foo foo/bar
286'
287
288test_expect_success 'D/F conflict prevents delete long packed + add short' '
289 df_test refs/df-dlp-as --pack --del-add foo/bar foo
290'
291
292test_expect_success 'D/F conflict prevents delete short packed + add long' '
293 df_test refs/df-dsp-al --pack --del-add foo foo/bar
294'
295
296# Try some combinations involving symbolic refs...
297
298test_expect_success 'D/F conflict prevents indirect add long + delete short' '
299 df_test refs/df-ial-ds --sym-add --add-del foo/bar foo
300'
301
302test_expect_success 'D/F conflict prevents indirect add long + indirect delete short' '
303 df_test refs/df-ial-ids --sym-add --sym-del --add-del foo/bar foo
304'
305
306test_expect_success 'D/F conflict prevents indirect add short + indirect delete long' '
307 df_test refs/df-ias-idl --sym-add --sym-del --add-del foo foo/bar
308'
309
310test_expect_success 'D/F conflict prevents indirect delete long + indirect add short' '
311 df_test refs/df-idl-ias --sym-add --sym-del --del-add foo/bar foo
312'
313
314test_expect_success 'D/F conflict prevents indirect add long + delete short packed' '
315 df_test refs/df-ial-dsp --sym-add --pack --add-del foo/bar foo
316'
317
318test_expect_success 'D/F conflict prevents indirect add long + indirect delete short packed' '
319 df_test refs/df-ial-idsp --sym-add --sym-del --pack --add-del foo/bar foo
320'
321
322test_expect_success 'D/F conflict prevents add long + indirect delete short packed' '
323 df_test refs/df-al-idsp --sym-del --pack --add-del foo/bar foo
324'
325
326test_expect_success 'D/F conflict prevents indirect delete long packed + indirect add short' '
327 df_test refs/df-idlp-ias --sym-add --sym-del --pack --del-add foo/bar foo
328'
329
330# Test various errors when reading the old values of references...
331
332test_expect_success 'missing old value blocks update' '
333 prefix=refs/missing-update &&
334 cat >expected <<-EOF &&
335 fatal: cannot lock ref $SQ$prefix/foo$SQ: unable to resolve reference $SQ$prefix/foo$SQ
336 EOF
337 printf "%s\n" "update $prefix/foo $E $D" |
338 test_must_fail git update-ref --stdin 2>output.err &&
339 test_cmp expected output.err
340'
341
342test_expect_success 'incorrect old value blocks update' '
343 prefix=refs/incorrect-update &&
344 git update-ref $prefix/foo $C &&
345 cat >expected <<-EOF &&
346 fatal: cannot lock ref $SQ$prefix/foo$SQ: is at $C but expected $D
347 EOF
348 printf "%s\n" "update $prefix/foo $E $D" |
349 test_must_fail git update-ref --stdin 2>output.err &&
350 test_cmp expected output.err
351'
352
353test_expect_success 'existing old value blocks create' '
354 prefix=refs/existing-create &&
355 git update-ref $prefix/foo $C &&
356 cat >expected <<-EOF &&
357 fatal: cannot lock ref $SQ$prefix/foo$SQ: reference already exists
358 EOF
359 printf "%s\n" "create $prefix/foo $E" |
360 test_must_fail git update-ref --stdin 2>output.err &&
361 test_cmp expected output.err
362'
363
364test_expect_success 'incorrect old value blocks delete' '
365 prefix=refs/incorrect-delete &&
366 git update-ref $prefix/foo $C &&
367 cat >expected <<-EOF &&
368 fatal: cannot lock ref $SQ$prefix/foo$SQ: is at $C but expected $D
369 EOF
370 printf "%s\n" "delete $prefix/foo $D" |
371 test_must_fail git update-ref --stdin 2>output.err &&
372 test_cmp expected output.err
373'
374
375test_expect_success 'missing old value blocks indirect update' '
376 prefix=refs/missing-indirect-update &&
377 git symbolic-ref $prefix/symref $prefix/foo &&
378 cat >expected <<-EOF &&
379 fatal: cannot lock ref $SQ$prefix/symref$SQ: unable to resolve reference $SQ$prefix/foo$SQ
380 EOF
381 printf "%s\n" "update $prefix/symref $E $D" |
382 test_must_fail git update-ref --stdin 2>output.err &&
383 test_cmp expected output.err
384'
385
386test_expect_success 'incorrect old value blocks indirect update' '
387 prefix=refs/incorrect-indirect-update &&
388 git symbolic-ref $prefix/symref $prefix/foo &&
389 git update-ref $prefix/foo $C &&
390 cat >expected <<-EOF &&
391 fatal: cannot lock ref $SQ$prefix/symref$SQ: is at $C but expected $D
392 EOF
393 printf "%s\n" "update $prefix/symref $E $D" |
394 test_must_fail git update-ref --stdin 2>output.err &&
395 test_cmp expected output.err
396'
397
398test_expect_success 'existing old value blocks indirect create' '
399 prefix=refs/existing-indirect-create &&
400 git symbolic-ref $prefix/symref $prefix/foo &&
401 git update-ref $prefix/foo $C &&
402 cat >expected <<-EOF &&
403 fatal: cannot lock ref $SQ$prefix/symref$SQ: reference already exists
404 EOF
405 printf "%s\n" "create $prefix/symref $E" |
406 test_must_fail git update-ref --stdin 2>output.err &&
407 test_cmp expected output.err
408'
409
410test_expect_success 'incorrect old value blocks indirect delete' '
411 prefix=refs/incorrect-indirect-delete &&
412 git symbolic-ref $prefix/symref $prefix/foo &&
413 git update-ref $prefix/foo $C &&
414 cat >expected <<-EOF &&
415 fatal: cannot lock ref $SQ$prefix/symref$SQ: is at $C but expected $D
416 EOF
417 printf "%s\n" "delete $prefix/symref $D" |
418 test_must_fail git update-ref --stdin 2>output.err &&
419 test_cmp expected output.err
420'
421
422test_expect_success 'missing old value blocks indirect no-deref update' '
423 prefix=refs/missing-noderef-update &&
424 git symbolic-ref $prefix/symref $prefix/foo &&
425 cat >expected <<-EOF &&
426 fatal: cannot lock ref $SQ$prefix/symref$SQ: reference is missing but expected $D
427 EOF
428 printf "%s\n" "option no-deref" "update $prefix/symref $E $D" |
429 test_must_fail git update-ref --stdin 2>output.err &&
430 test_cmp expected output.err
431'
432
433test_expect_success 'incorrect old value blocks indirect no-deref update' '
434 prefix=refs/incorrect-noderef-update &&
435 git symbolic-ref $prefix/symref $prefix/foo &&
436 git update-ref $prefix/foo $C &&
437 cat >expected <<-EOF &&
438 fatal: cannot lock ref $SQ$prefix/symref$SQ: is at $C but expected $D
439 EOF
440 printf "%s\n" "option no-deref" "update $prefix/symref $E $D" |
441 test_must_fail git update-ref --stdin 2>output.err &&
442 test_cmp expected output.err
443'
444
445test_expect_success 'existing old value blocks indirect no-deref create' '
446 prefix=refs/existing-noderef-create &&
447 git symbolic-ref $prefix/symref $prefix/foo &&
448 git update-ref $prefix/foo $C &&
449 cat >expected <<-EOF &&
450 fatal: cannot lock ref $SQ$prefix/symref$SQ: reference already exists
451 EOF
452 printf "%s\n" "option no-deref" "create $prefix/symref $E" |
453 test_must_fail git update-ref --stdin 2>output.err &&
454 test_cmp expected output.err
455'
456
457test_expect_success 'incorrect old value blocks indirect no-deref delete' '
458 prefix=refs/incorrect-noderef-delete &&
459 git symbolic-ref $prefix/symref $prefix/foo &&
460 git update-ref $prefix/foo $C &&
461 cat >expected <<-EOF &&
462 fatal: cannot lock ref $SQ$prefix/symref$SQ: is at $C but expected $D
463 EOF
464 printf "%s\n" "option no-deref" "delete $prefix/symref $D" |
465 test_must_fail git update-ref --stdin 2>output.err &&
466 test_cmp expected output.err
467'
468
469test_expect_success 'non-empty directory blocks create' '
470 prefix=refs/ne-create &&
471 mkdir -p .git/$prefix/foo/bar &&
472 : >.git/$prefix/foo/bar/baz.lock &&
473 test_when_finished "rm -f .git/$prefix/foo/bar/baz.lock" &&
474 cat >expected <<-EOF &&
475 fatal: cannot lock ref $SQ$prefix/foo$SQ: there is a non-empty directory $SQ.git/$prefix/foo$SQ blocking reference $SQ$prefix/foo$SQ
476 EOF
477 printf "%s\n" "update $prefix/foo $C" |
478 test_must_fail git update-ref --stdin 2>output.err &&
479 test_cmp expected output.err &&
480 cat >expected <<-EOF &&
481 fatal: cannot lock ref $SQ$prefix/foo$SQ: unable to resolve reference $SQ$prefix/foo$SQ
482 EOF
483 printf "%s\n" "update $prefix/foo $D $C" |
484 test_must_fail git update-ref --stdin 2>output.err &&
485 test_cmp expected output.err
486'
487
488test_expect_success 'broken reference blocks create' '
489 prefix=refs/broken-create &&
490 mkdir -p .git/$prefix &&
491 echo "gobbledigook" >.git/$prefix/foo &&
492 test_when_finished "rm -f .git/$prefix/foo" &&
493 cat >expected <<-EOF &&
494 fatal: cannot lock ref $SQ$prefix/foo$SQ: unable to resolve reference $SQ$prefix/foo$SQ: reference broken
495 EOF
496 printf "%s\n" "update $prefix/foo $C" |
497 test_must_fail git update-ref --stdin 2>output.err &&
498 test_cmp expected output.err &&
499 cat >expected <<-EOF &&
500 fatal: cannot lock ref $SQ$prefix/foo$SQ: unable to resolve reference $SQ$prefix/foo$SQ: reference broken
501 EOF
502 printf "%s\n" "update $prefix/foo $D $C" |
503 test_must_fail git update-ref --stdin 2>output.err &&
504 test_cmp expected output.err
505'
506
507test_expect_success 'non-empty directory blocks indirect create' '
508 prefix=refs/ne-indirect-create &&
509 git symbolic-ref $prefix/symref $prefix/foo &&
510 mkdir -p .git/$prefix/foo/bar &&
511 : >.git/$prefix/foo/bar/baz.lock &&
512 test_when_finished "rm -f .git/$prefix/foo/bar/baz.lock" &&
513 cat >expected <<-EOF &&
514 fatal: cannot lock ref $SQ$prefix/symref$SQ: there is a non-empty directory $SQ.git/$prefix/foo$SQ blocking reference $SQ$prefix/foo$SQ
515 EOF
516 printf "%s\n" "update $prefix/symref $C" |
517 test_must_fail git update-ref --stdin 2>output.err &&
518 test_cmp expected output.err &&
519 cat >expected <<-EOF &&
520 fatal: cannot lock ref $SQ$prefix/symref$SQ: unable to resolve reference $SQ$prefix/foo$SQ
521 EOF
522 printf "%s\n" "update $prefix/symref $D $C" |
523 test_must_fail git update-ref --stdin 2>output.err &&
524 test_cmp expected output.err
525'
526
527test_expect_success 'broken reference blocks indirect create' '
528 prefix=refs/broken-indirect-create &&
529 git symbolic-ref $prefix/symref $prefix/foo &&
530 echo "gobbledigook" >.git/$prefix/foo &&
531 test_when_finished "rm -f .git/$prefix/foo" &&
532 cat >expected <<-EOF &&
533 fatal: cannot lock ref $SQ$prefix/symref$SQ: unable to resolve reference $SQ$prefix/foo$SQ: reference broken
534 EOF
535 printf "%s\n" "update $prefix/symref $C" |
536 test_must_fail git update-ref --stdin 2>output.err &&
537 test_cmp expected output.err &&
538 cat >expected <<-EOF &&
539 fatal: cannot lock ref $SQ$prefix/symref$SQ: unable to resolve reference $SQ$prefix/foo$SQ: reference broken
540 EOF
541 printf "%s\n" "update $prefix/symref $D $C" |
542 test_must_fail git update-ref --stdin 2>output.err &&
543 test_cmp expected output.err
544'
545
546test_expect_success 'no bogus intermediate values during delete' '
547 prefix=refs/slow-transaction &&
548 # Set up a reference with differing loose and packed versions:
549 git update-ref $prefix/foo $C &&
550 git pack-refs --all &&
551 git update-ref $prefix/foo $D &&
552 git for-each-ref $prefix >unchanged &&
553 # Now try to update the reference, but hold the `packed-refs` lock
554 # for a while to see what happens while the process is blocked:
555 : >.git/packed-refs.lock &&
556 test_when_finished "rm -f .git/packed-refs.lock" &&
557 {
558 # Note: the following command is intentionally run in the
559 # background. We increase the timeout so that `update-ref`
560 # attempts to acquire the `packed-refs` lock for much longer
561 # than it takes for us to do the check then delete it:
562 git -c core.packedrefstimeout=30000 update-ref -d $prefix/foo &
563 } &&
564 pid2=$! &&
565 # Give update-ref plenty of time to get to the point where it tries
566 # to lock packed-refs:
567 sleep 1 &&
568 # Make sure that update-ref did not complete despite the lock:
569 kill -0 $pid2 &&
570 # Verify that the reference still has its old value:
571 sha1=$(git rev-parse --verify --quiet $prefix/foo || echo undefined) &&
572 case "$sha1" in
573 $D)
574 # This is what we hope for; it means that nothing
575 # user-visible has changed yet.
576 : ;;
577 undefined)
578 # This is not correct; it means the deletion has happened
579 # already even though update-ref should not have been
580 # able to acquire the lock yet.
581 echo "$prefix/foo deleted prematurely" &&
582 break
583 ;;
584 $C)
585 # This value should never be seen. Probably the loose
586 # reference has been deleted but the packed reference
587 # is still there:
588 echo "$prefix/foo incorrectly observed to be C" &&
589 break
590 ;;
591 *)
592 # WTF?
593 echo "unexpected value observed for $prefix/foo: $sha1" &&
594 break
595 ;;
596 esac >out &&
597 rm -f .git/packed-refs.lock &&
598 wait $pid2 &&
599 test_must_be_empty out &&
600 test_must_fail git rev-parse --verify --quiet $prefix/foo
601'
602
603test_expect_success 'delete fails cleanly if packed-refs file is locked' '
604 prefix=refs/locked-packed-refs &&
605 # Set up a reference with differing loose and packed versions:
606 git update-ref $prefix/foo $C &&
607 git pack-refs --all &&
608 git update-ref $prefix/foo $D &&
609 git for-each-ref $prefix >unchanged &&
610 # Now try to delete it while the `packed-refs` lock is held:
611 : >.git/packed-refs.lock &&
612 test_when_finished "rm -f .git/packed-refs.lock" &&
613 test_must_fail git update-ref -d $prefix/foo >out 2>err &&
614 git for-each-ref $prefix >actual &&
615 test_i18ngrep "Unable to create $SQ.*packed-refs.lock$SQ: " err &&
616 test_cmp unchanged actual
617'
618
619test_expect_success 'delete fails cleanly if packed-refs.new write fails' '
620 # Setup and expectations are similar to the test above.
621 prefix=refs/failed-packed-refs &&
622 git update-ref $prefix/foo $C &&
623 git pack-refs --all &&
624 git update-ref $prefix/foo $D &&
625 git for-each-ref $prefix >unchanged &&
626 # This should not happen in practice, but it is an easy way to get a
627 # reliable error (we open with create_tempfile(), which uses O_EXCL).
628 : >.git/packed-refs.new &&
629 test_when_finished "rm -f .git/packed-refs.new" &&
630 test_must_fail git update-ref -d $prefix/foo &&
631 git for-each-ref $prefix >actual &&
632 test_cmp unchanged actual
633'
634
635test_done