summaryrefslogtreecommitdiff
path: root/t/t6036-recursive-corner-cases.sh
blob: 892cf08743007aec0424edd6d7428489109ead59 (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
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
#!/bin/sh

test_description='recursive merge corner cases involving criss-cross merges'

. ./test-lib.sh

#
#  L1  L2
#   o---o
#  / \ / \
# o   X   ?
#  \ / \ /
#   o---o
#  R1  R2
#

test_expect_success 'setup basic criss-cross + rename with no modifications' '
	test_create_repo basic-rename &&
	(
		cd basic-rename &&

		ten="0 1 2 3 4 5 6 7 8 9" &&
		for i in $ten
		do
			echo line $i in a sample file
		done >one &&
		for i in $ten
		do
			echo line $i in another sample file
		done >two &&
		git add one two &&
		test_tick && git commit -m initial &&

		git branch L1 &&
		git checkout -b R1 &&
		git mv one three &&
		test_tick && git commit -m R1 &&

		git checkout L1 &&
		git mv two three &&
		test_tick && git commit -m L1 &&

		git checkout L1^0 &&
		test_tick && git merge -s ours R1 &&
		git tag L2 &&

		git checkout R1^0 &&
		test_tick && git merge -s ours L1 &&
		git tag R2
	)
'

test_expect_success 'merge simple rename+criss-cross with no modifications' '
	(
		cd basic-rename &&

		git reset --hard &&
		git checkout L2^0 &&

		test_must_fail git merge -s recursive R2^0 &&

		git ls-files -s >out &&
		test_line_count = 2 out &&
		git ls-files -u >out &&
		test_line_count = 2 out &&
		git ls-files -o >out &&
		test_line_count = 3 out &&

		git rev-parse >expect       \
			L2:three   R2:three \
			L2:three   R2:three &&
		git rev-parse   >actual     \
			:2:three   :3:three &&
		git hash-object >>actual    \
			three~HEAD three~R2^0 &&
		test_cmp expect actual
	)
'

#
# Same as before, but modify L1 slightly:
#
#  L1m L2
#   o---o
#  / \ / \
# o   X   ?
#  \ / \ /
#   o---o
#  R1  R2
#

test_expect_success 'setup criss-cross + rename merges with basic modification' '
	test_create_repo rename-modify &&
	(
		cd rename-modify &&

		ten="0 1 2 3 4 5 6 7 8 9" &&
		for i in $ten
		do
			echo line $i in a sample file
		done >one &&
		for i in $ten
		do
			echo line $i in another sample file
		done >two &&
		git add one two &&
		test_tick && git commit -m initial &&

		git branch L1 &&
		git checkout -b R1 &&
		git mv one three &&
		echo more >>two &&
		git add two &&
		test_tick && git commit -m R1 &&

		git checkout L1 &&
		git mv two three &&
		test_tick && git commit -m L1 &&

		git checkout L1^0 &&
		test_tick && git merge -s ours R1 &&
		git tag L2 &&

		git checkout R1^0 &&
		test_tick && git merge -s ours L1 &&
		git tag R2
	)
'

test_expect_success 'merge criss-cross + rename merges with basic modification' '
	(
		cd rename-modify &&

		git checkout L2^0 &&

		test_must_fail git merge -s recursive R2^0 &&

		git ls-files -s >out &&
		test_line_count = 2 out &&
		git ls-files -u >out &&
		test_line_count = 2 out &&
		git ls-files -o >out &&
		test_line_count = 3 out &&

		git rev-parse >expect       \
			L2:three   R2:three \
			L2:three   R2:three &&
		git rev-parse   >actual     \
			:2:three   :3:three &&
		git hash-object >>actual    \
			three~HEAD three~R2^0 &&
		test_cmp expect actual
	)
'

#
# For the next test, we start with three commits in two lines of development
# which setup a rename/add conflict:
#   Commit A: File 'a' exists
#   Commit B: Rename 'a' -> 'new_a'
#   Commit C: Modify 'a', create different 'new_a'
# Later, two different people merge and resolve differently:
#   Commit D: Merge B & C, ignoring separately created 'new_a'
#   Commit E: Merge B & C making use of some piece of secondary 'new_a'
# Finally, someone goes to merge D & E.  Does git detect the conflict?
#
#      B   D
#      o---o
#     / \ / \
#  A o   X   ? F
#     \ / \ /
#      o---o
#      C   E
#

test_expect_success 'setup differently handled merges of rename/add conflict' '
	test_create_repo rename-add &&
	(
		cd rename-add &&

		printf "0\n1\n2\n3\n4\n5\n6\n7\n8\n9\n" >a &&
		git add a &&
		test_tick && git commit -m A &&

		git branch B &&
		git checkout -b C &&
		echo 10 >>a &&
		echo "other content" >>new_a &&
		git add a new_a &&
		test_tick && git commit -m C &&

		git checkout B &&
		git mv a new_a &&
		test_tick && git commit -m B &&

		git checkout B^0 &&
		test_must_fail git merge C &&
		git clean -f &&
		test_tick && git commit -m D &&
		git tag D &&

		git checkout C^0 &&
		test_must_fail git merge B &&
		rm new_a~HEAD new_a &&
		printf "Incorrectly merged content" >>new_a &&
		git add -u &&
		test_tick && git commit -m E &&
		git tag E
	)
'

test_expect_success 'git detects differently handled merges conflict' '
	(
		cd rename-add &&

		git checkout D^0 &&

		test_must_fail git merge -s recursive E^0 &&

		git ls-files -s >out &&
		test_line_count = 3 out &&
		git ls-files -u >out &&
		test_line_count = 3 out &&
		git ls-files -o >out &&
		test_line_count = 1 out &&

		git rev-parse >expect       \
			D:new_a  E:new_a &&
		git rev-parse   >actual     \
			:2:new_a :3:new_a &&
		test_cmp expect actual &&

		git cat-file -p B:new_a >ours &&
		git cat-file -p C:new_a >theirs &&
		>empty &&
		test_must_fail git merge-file \
			-L "Temporary merge branch 2" \
			-L "" \
			-L "Temporary merge branch 1" \
			ours empty theirs &&
		sed -e "s/^\([<=>]\)/\1\1\1/" ours >expect &&
		git cat-file -p :1:new_a >actual &&
		test_cmp expect actual
	)
'

#
# criss-cross + modify/delete:
#
#      B   D
#      o---o
#     / \ / \
#  A o   X   ? F
#     \ / \ /
#      o---o
#      C   E
#
#   Commit A: file with contents 'A\n'
#   Commit B: file with contents 'B\n'
#   Commit C: file not present
#   Commit D: file with contents 'B\n'
#   Commit E: file not present
#
# Merging commits D & E should result in modify/delete conflict.

test_expect_success 'setup criss-cross + modify/delete resolved differently' '
	test_create_repo modify-delete &&
	(
		cd modify-delete &&

		echo A >file &&
		git add file &&
		test_tick &&
		git commit -m A &&

		git branch B &&
		git checkout -b C &&
		git rm file &&
		test_tick &&
		git commit -m C &&

		git checkout B &&
		echo B >file &&
		git add file &&
		test_tick &&
		git commit -m B &&

		git checkout B^0 &&
		test_must_fail git merge C &&
		echo B >file &&
		git add file &&
		test_tick &&
		git commit -m D &&
		git tag D &&

		git checkout C^0 &&
		test_must_fail git merge B &&
		git rm file &&
		test_tick &&
		git commit -m E &&
		git tag E
	)
'

test_expect_success 'git detects conflict merging criss-cross+modify/delete' '
	(
		cd modify-delete &&

		git checkout D^0 &&

		test_must_fail git merge -s recursive E^0 &&

		git ls-files -s >out &&
		test_line_count = 2 out &&
		git ls-files -u >out &&
		test_line_count = 2 out &&

		git rev-parse >expect       \
			master:file  B:file &&
		git rev-parse   >actual      \
			:1:file      :2:file &&
		test_cmp expect actual
	)
'

test_expect_success 'git detects conflict merging criss-cross+modify/delete, reverse direction' '
	(
		cd modify-delete &&

		git reset --hard &&
		git checkout E^0 &&

		test_must_fail git merge -s recursive D^0 &&

		git ls-files -s >out &&
		test_line_count = 2 out &&
		git ls-files -u >out &&
		test_line_count = 2 out &&

		git rev-parse >expect       \
			master:file  B:file &&
		git rev-parse   >actual      \
			:1:file      :3:file &&
		test_cmp expect actual
	)
'

#
# criss-cross + d/f conflict via add/add:
#   Commit A: Neither file 'a' nor directory 'a/' exists.
#   Commit B: Introduce 'a'
#   Commit C: Introduce 'a/file'
#   Commit D: Merge B & C, keeping 'a' and deleting 'a/'
#
# Two different later cases:
#   Commit E1: Merge B & C, deleting 'a' but keeping 'a/file'
#   Commit E2: Merge B & C, deleting 'a' but keeping a slightly modified 'a/file'
#
#      B   D
#      o---o
#     / \ / \
#  A o   X   ? F
#     \ / \ /
#      o---o
#      C   E1 or E2
#
# Merging D & E1 requires we first create a virtual merge base X from
# merging A & B in memory.  Now, if X could keep both 'a' and 'a/file' in
# the index, then the merge of D & E1 could be resolved cleanly with both
# 'a' and 'a/file' removed.  Since git does not currently allow creating
# such a tree, the best we can do is have X contain both 'a~<unique>' and
# 'a/file' resulting in the merge of D and E1 having a rename/delete
# conflict for 'a'.  (Although this merge appears to be unsolvable with git
# currently, git could do a lot better than it currently does with these
# d/f conflicts, which is the purpose of this test.)
#
# Merge of D & E2 has similar issues for path 'a', but should always result
# in a modify/delete conflict for path 'a/file'.
#
# We run each merge in both directions, to check for directional issues
# with D/F conflict handling.
#

test_expect_success 'setup differently handled merges of directory/file conflict' '
	test_create_repo directory-file &&
	(
		cd directory-file &&

		>ignore-me &&
		git add ignore-me &&
		test_tick &&
		git commit -m A &&
		git tag A &&

		git branch B &&
		git checkout -b C &&
		mkdir a &&
		echo 10 >a/file &&
		git add a/file &&
		test_tick &&
		git commit -m C &&

		git checkout B &&
		echo 5 >a &&
		git add a &&
		test_tick &&
		git commit -m B &&

		git checkout B^0 &&
		test_must_fail git merge C &&
		git clean -f &&
		rm -rf a/ &&
		echo 5 >a &&
		git add a &&
		test_tick &&
		git commit -m D &&
		git tag D &&

		git checkout C^0 &&
		test_must_fail git merge B &&
		git clean -f &&
		git rm --cached a &&
		echo 10 >a/file &&
		git add a/file &&
		test_tick &&
		git commit -m E1 &&
		git tag E1 &&

		git checkout C^0 &&
		test_must_fail git merge B &&
		git clean -f &&
		git rm --cached a &&
		printf "10\n11\n" >a/file &&
		git add a/file &&
		test_tick &&
		git commit -m E2 &&
		git tag E2
	)
'

test_expect_success 'merge of D & E1 fails but has appropriate contents' '
	test_when_finished "git -C directory-file reset --hard" &&
	test_when_finished "git -C directory-file clean -fdqx" &&
	(
		cd directory-file &&

		git checkout D^0 &&

		test_must_fail git merge -s recursive E1^0 &&

		git ls-files -s >out &&
		test_line_count = 2 out &&
		git ls-files -u >out &&
		test_line_count = 1 out &&
		git ls-files -o >out &&
		test_line_count = 1 out &&

		git rev-parse >expect    \
			A:ignore-me  B:a &&
		git rev-parse   >actual   \
			:0:ignore-me :2:a &&
		test_cmp expect actual
	)
'

test_expect_success 'merge of E1 & D fails but has appropriate contents' '
	test_when_finished "git -C directory-file reset --hard" &&
	test_when_finished "git -C directory-file clean -fdqx" &&
	(
		cd directory-file &&

		git checkout E1^0 &&

		test_must_fail git merge -s recursive D^0 &&

		git ls-files -s >out &&
		test_line_count = 2 out &&
		git ls-files -u >out &&
		test_line_count = 1 out &&
		git ls-files -o >out &&
		test_line_count = 1 out &&

		git rev-parse >expect    \
			A:ignore-me  B:a &&
		git rev-parse   >actual   \
			:0:ignore-me :3:a &&
		test_cmp expect actual
	)
'

test_expect_success 'merge of D & E2 fails but has appropriate contents' '
	test_when_finished "git -C directory-file reset --hard" &&
	test_when_finished "git -C directory-file clean -fdqx" &&
	(
		cd directory-file &&

		git checkout D^0 &&

		test_must_fail git merge -s recursive E2^0 &&

		git ls-files -s >out &&
		test_line_count = 4 out &&
		git ls-files -u >out &&
		test_line_count = 3 out &&
		git ls-files -o >out &&
		test_line_count = 2 out &&

		git rev-parse >expect    \
			B:a   E2:a/file  C:a/file   A:ignore-me &&
		git rev-parse   >actual   \
			:2:a  :3:a/file  :1:a/file  :0:ignore-me &&
		test_cmp expect actual &&

		test_path_is_file a~HEAD
	)
'

test_expect_success 'merge of E2 & D fails but has appropriate contents' '
	test_when_finished "git -C directory-file reset --hard" &&
	test_when_finished "git -C directory-file clean -fdqx" &&
	(
		cd directory-file &&

		git checkout E2^0 &&

		test_must_fail git merge -s recursive D^0 &&

		git ls-files -s >out &&
		test_line_count = 4 out &&
		git ls-files -u >out &&
		test_line_count = 3 out &&
		git ls-files -o >out &&
		test_line_count = 2 out &&

		git rev-parse >expect    \
			B:a   E2:a/file  C:a/file   A:ignore-me &&
		git rev-parse   >actual   \
			:3:a  :2:a/file  :1:a/file  :0:ignore-me &&
		test_cmp expect actual &&

		test_path_is_file a~D^0
	)
'

#
# criss-cross with rename/rename(1to2)/modify followed by
# rename/rename(2to1)/modify:
#
#      B   D
#      o---o
#     / \ / \
#  A o   X   ? F
#     \ / \ /
#      o---o
#      C   E
#
#   Commit A: new file: a
#   Commit B: rename a->b, modifying by adding a line
#   Commit C: rename a->c
#   Commit D: merge B&C, resolving conflict by keeping contents in newname
#   Commit E: merge B&C, resolving conflict similar to D but adding another line
#
# There is a conflict merging B & C, but one of filename not of file
# content.  Whoever created D and E chose specific resolutions for that
# conflict resolution.  Now, since: (1) there is no content conflict
# merging B & C, (2) D does not modify that merged content further, and (3)
# both D & E resolve the name conflict in the same way, the modification to
# newname in E should not cause any conflicts when it is merged with D.
# (Note that this can be accomplished by having the virtual merge base have
# the merged contents of b and c stored in a file named a, which seems like
# the most logical choice anyway.)
#
# Comment from Junio: I do not necessarily agree with the choice "a", but
# it feels sound to say "B and C do not agree what the final pathname
# should be, but we know this content was derived from the common A:a so we
# use one path whose name is arbitrary in the virtual merge base X between
# D and E" and then further let the rename detection to notice that that
# arbitrary path gets renamed between X-D to "newname" and X-E also to
# "newname" to resolve it as both sides renaming it to the same new
# name. It is akin to what we do at the content level, i.e. "B and C do not
# agree what the final contents should be, so we leave the conflict marker
# but that may cancel out at the final merge stage".

test_expect_success 'setup rename/rename(1to2)/modify followed by what looks like rename/rename(2to1)/modify' '
	test_create_repo rename-squared-squared &&
	(
		cd rename-squared-squared &&

		printf "1\n2\n3\n4\n5\n6\n" >a &&
		git add a &&
		git commit -m A &&
		git tag A &&

		git checkout -b B A &&
		git mv a b &&
		echo 7 >>b &&
		git add -u &&
		git commit -m B &&

		git checkout -b C A &&
		git mv a c &&
		git commit -m C &&

		git checkout -q B^0 &&
		git merge --no-commit -s ours C^0 &&
		git mv b newname &&
		git commit -m "Merge commit C^0 into HEAD" &&
		git tag D &&

		git checkout -q C^0 &&
		git merge --no-commit -s ours B^0 &&
		git mv c newname &&
		printf "7\n8\n" >>newname &&
		git add -u &&
		git commit -m "Merge commit B^0 into HEAD" &&
		git tag E
	)
'

test_expect_success 'handle rename/rename(1to2)/modify followed by what looks like rename/rename(2to1)/modify' '
	(
		cd rename-squared-squared &&

		git checkout D^0 &&

		git merge -s recursive E^0 &&

		git ls-files -s >out &&
		test_line_count = 1 out &&
		git ls-files -u >out &&
		test_line_count = 0 out &&
		git ls-files -o >out &&
		test_line_count = 1 out &&

		test $(git rev-parse HEAD:newname) = $(git rev-parse E:newname)
	)
'

#
# criss-cross with rename/rename(1to2)/add-source + resolvable modify/modify:
#
#      B   D
#      o---o
#     / \ / \
#  A o   X   ? F
#     \ / \ /
#      o---o
#      C   E
#
#   Commit A: new file: a
#   Commit B: rename a->b
#   Commit C: rename a->c, add different a
#   Commit D: merge B&C, keeping b&c and (new) a modified at beginning
#   Commit E: merge B&C, keeping b&c and (new) a modified at end
#
# Merging commits D & E should result in no conflict; doing so correctly
# requires getting the virtual merge base (from merging B&C) right, handling
# renaming carefully (both in the virtual merge base and later), and getting
# content merge handled.

test_expect_success 'setup criss-cross + rename/rename/add-source + modify/modify' '
	test_create_repo rename-rename-add-source &&
	(
		cd rename-rename-add-source &&

		printf "lots\nof\nwords\nand\ncontent\n" >a &&
		git add a &&
		git commit -m A &&
		git tag A &&

		git checkout -b B A &&
		git mv a b &&
		git commit -m B &&

		git checkout -b C A &&
		git mv a c &&
		printf "2\n3\n4\n5\n6\n7\n" >a &&
		git add a &&
		git commit -m C &&

		git checkout B^0 &&
		git merge --no-commit -s ours C^0 &&
		git checkout C -- a c &&
		mv a old_a &&
		echo 1 >a &&
		cat old_a >>a &&
		rm old_a &&
		git add -u &&
		git commit -m "Merge commit C^0 into HEAD" &&
		git tag D &&

		git checkout C^0 &&
		git merge --no-commit -s ours B^0 &&
		git checkout B -- b &&
		echo 8 >>a &&
		git add -u &&
		git commit -m "Merge commit B^0 into HEAD" &&
		git tag E
	)
'

test_expect_failure 'detect rename/rename/add-source for virtual merge-base' '
	(
		cd rename-rename-add-source &&

		git checkout D^0 &&

		git merge -s recursive E^0 &&

		git ls-files -s >out &&
		test_line_count = 3 out &&
		git ls-files -u >out &&
		test_line_count = 0 out &&
		git ls-files -o >out &&
		test_line_count = 1 out &&

		printf "1\n2\n3\n4\n5\n6\n7\n8\n" >correct &&
		git rev-parse >expect \
			A:a   A:a     \
			correct       &&
		git rev-parse   >actual  \
			:0:b  :0:c       &&
		git hash-object >>actual \
			a                &&
		test_cmp expect actual
	)
'

#
# criss-cross with rename/rename(1to2)/add-dest + simple modify:
#
#      B   D
#      o---o
#     / \ / \
#  A o   X   ? F
#     \ / \ /
#      o---o
#      C   E
#
#   Commit A: new file: a
#   Commit B: rename a->b, add c
#   Commit C: rename a->c
#   Commit D: merge B&C, keeping A:a and B:c
#   Commit E: merge B&C, keeping A:a and slightly modified c from B
#
# Merging commits D & E should result in no conflict.  The virtual merge
# base of B & C needs to not delete B:c for that to work, though...

test_expect_success 'setup criss-cross+rename/rename/add-dest + simple modify' '
	test_create_repo rename-rename-add-dest &&
	(
		cd rename-rename-add-dest &&

		>a &&
		git add a &&
		git commit -m A &&
		git tag A &&

		git checkout -b B A &&
		git mv a b &&
		printf "1\n2\n3\n4\n5\n6\n7\n" >c &&
		git add c &&
		git commit -m B &&

		git checkout -b C A &&
		git mv a c &&
		git commit -m C &&

		git checkout B^0 &&
		git merge --no-commit -s ours C^0 &&
		git mv b a &&
		git commit -m "D is like B but renames b back to a" &&
		git tag D &&

		git checkout B^0 &&
		git merge --no-commit -s ours C^0 &&
		git mv b a &&
		echo 8 >>c &&
		git add c &&
		git commit -m "E like D but has mod in c" &&
		git tag E
	)
'

test_expect_success 'virtual merge base handles rename/rename(1to2)/add-dest' '
	(
		cd rename-rename-add-dest &&

		git checkout D^0 &&

		git merge -s recursive E^0 &&

		git ls-files -s >out &&
		test_line_count = 2 out &&
		git ls-files -u >out &&
		test_line_count = 0 out &&
		git ls-files -o >out &&
		test_line_count = 1 out &&

		git rev-parse >expect \
			A:a   E:c     &&
		git rev-parse   >actual \
			:0:a  :0:c      &&
		test_cmp expect actual
	)
'

test_done