about summary refs log tree commit diff
path: root/t/t4002-diff-basic.sh
blob: cbcdd104647b242c552d39d4f0529298936f8450 (plain) (blame)
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
#!/bin/sh
#
# Copyright (c) 2005 Junio C Hamano
#

test_description='Test diff raw-output.

'
. ./test-lib.sh

. "$TEST_DIRECTORY"/lib-read-tree-m-3way.sh

test_oid_init

test_oid_cache <<\EOF
aa_1 sha1:ccba72ad3888a3520b39efcf780b9ee64167535d
aa_1 sha256:9febfbf18197819b2735c45291f138525d2476d59470f98239647544586ba403

aa_2 sha1:6aa2b5335b16431a0ef71e5c0a28be69183cf6a2
aa_2 sha256:6eaa3437de83f145a4aaa6ba355303075ade547b128ec6a2cd00a81ff7ce7a56

an_1 sha1:7e426fb079479fd67f6d81f984e4ec649a44bc25
an_1 sha256:8f92a0bec99e399a38e3bd0e1bf19fbf121e0160efb29b857df79d439f1c4536

dd_1 sha1:bcc68ef997017466d5c9094bcf7692295f588c9a
dd_1 sha256:07e17428b00639b85485d2b01083d219e2f3e3ba8579e9ca44e9cc8dd554d952

df_1 sha1:6d50f65d3bdab91c63444294d38f08aeff328e42
df_1 sha256:e367cecc27e9bf5451b1c65828cb21938d36a5f8e39c1b03ad6509cc36bb8e9d

df_2 sha1:71420ab81e254145d26d6fc0cddee64c1acd4787
df_2 sha256:0f0a86d10347ff6921d03a3c954679f3f1d14fa3d5cd82f57b32c09755f3a47d

dfd1 sha1:68a6d8b91da11045cf4aa3a5ab9f2a781c701249
dfd1 sha256:f3bd3265b02b6978ce86490d8ad026c573639c974b3de1d9faf30d8d5a77d3d5

dm_1 sha1:141c1f1642328e4bc46a7d801a71da392e66791e
dm_1 sha256:c89f8656e7b94e21ee5fbaf0e2149bbf783c51edbe2ce110349cac13059ee7ed

dm_2 sha1:3c4d8de5fbad08572bab8e10eef8dbb264cf0231
dm_2 sha256:83a572e37e0c94086294dae2cecc43d9131afd6f6c906e495c78972230b54988

dn_1 sha1:35abde1506ddf806572ff4d407bd06885d0f8ee9
dn_1 sha256:775d5852582070e620be63327bfa515fab8f71c7ac3e4f0c3cd6267b4377ba28

ll_2 sha1:1d41122ebdd7a640f29d3c9cc4f9d70094374762
ll_2 sha256:7917b4948a883cfed0a77d3d5a625dc8577d6ddcc3c6c3bbc56c4d4226a2246d

md_1 sha1:03f24c8c4700babccfd28b654e7e8eac402ad6cd
md_1 sha256:fc9f30369b978595ad685ba11ca9a17de0af16d79cd4b629975f4f1590033902

md_2 sha1:103d9f89b50b9aad03054b579be5e7aa665f2d57
md_2 sha256:fc78ec75275628762fe520479a6b2398dec295ce7aabcb1d15e5963c7b4e9317

mm_1 sha1:b258508afb7ceb449981bd9d63d2d3e971bf8d34
mm_1 sha256:a4b7847d228e900e3000285e240c20fd96f9dd41ce1445305f6eada126d4a04a

mm_2 sha1:b431b272d829ff3aa4d1a5085f4394ab4d3305b6
mm_2 sha256:3f8b83ea36aacf689bcf1a1290a9a8ed341564d32682ea6f76fea9a979186782

mm_3 sha1:19989d4559aae417fedee240ccf2ba315ea4dc2b
mm_3 sha256:71b3bfc5747ac033fff9ea0ab39ee453a3af2969890e75d6ef547b87544e2681

mn_1 sha1:bd084b0c27c7b6cc34f11d6d0509a29be3caf970
mn_1 sha256:47a67450583d7a329eb01a7c4ba644945af72c0ed2c7c95eb5a00d6e46d4d483

mn_2 sha1:a716d58de4a570e0038f5c307bd8db34daea021f
mn_2 sha256:f95104c1ebe27acb84bac25a7be98c71f6b8d3054b21f357a5be0c524ad97e08

nm_1 sha1:c8f25781e8f1792e3e40b74225e20553041b5226
nm_1 sha256:09baddc7afaa62e62e152c23c9c3ab94bf15a3894031e227e9be7fe68e1f4e49

nm_2 sha1:cdb9a8c3da571502ac30225e9c17beccb8387983
nm_2 sha256:58b5227956ac2d2a08d0efa513c0ae37430948b16791ea3869a1308dbf05536d

na_1 sha1:15885881ea69115351c09b38371f0348a3fb8c67
na_1 sha256:18e4fdd1670cd7968ee23d35bfd29e5418d56fb190c840094c1c57ceee0aad8f

nd_1 sha1:a4e179e4291e5536a5e1c82e091052772d2c5a93
nd_1 sha256:07dac9b01d00956ea0c65bd993d7de4864aeef2ed3cbb1255d9f1d949fcd6df6

ss_1 sha1:40c959f984c8b89a2b02520d17f00d717f024397
ss_1 sha256:50fc1b5df74d9910db2f9270993484235f15b69b75b01bcfb53e059289d14af9

ss_2 sha1:2ac547ae9614a00d1b28275de608131f7a0e259f
ss_2 sha256:a90f02e6044f1497d13db587d22ab12f90150a7d1e084afcf96065fab35ae2bc

tt_1 sha1:4ac13458899ab908ef3b1128fa378daefc88d356
tt_1 sha256:c53113c7dd5060e86b5b251428bd058f6726f66273c6a24bff1c61a04f498dd3

tt_2 sha1:4c86f9a85fbc5e6804ee2e17a797538fbe785bca
tt_2 sha256:0775f2a296129a7cf2862b46bc0e88c14d593f2773a3e3fb1c5193db6f5a7e77

tt_3 sha1:c4e4a12231b9fa79a0053cb6077fcb21bb5b135a
tt_3 sha256:47860f93cdd211f96443e0560f21c57ab6c2f4b0ac27ff03651a352e53fe8484

z__1 sha1:7d670fdcdb9929f6c7dac196ff78689cd1c566a1
z__1 sha256:44d0f37aff5e51cfcfdd1134c93a6419bcca7b9964f792ffcd5f9b4fcba1ee63

z__2 sha1:5e5f22072bb39f6e12cf663a57cb634c76eefb49
z__2 sha256:d29de162113190fed104eb5f010820cef4e315f89b9326e8497f7219fb737894

z__3 sha1:1ba523955d5160681af65cb776411f574c1e8155
z__3 sha256:07422d772b07794ab4369a5648e617719f89c2d2212cbeab05d97214b6471636

zaa1 sha1:8acb8e9750e3f644bf323fcf3d338849db106c77
zaa1 sha256:e79b029282c8abec2d9f3f7faceaf2a1405e02d1f368e66450ae66cf5b68d1f4

zaa2 sha1:6c0b99286d0bce551ac4a7b3dff8b706edff3715
zaa2 sha256:c82bd78c3e69ea1796e6b1a7a3ba45bb106c50e819296475b862123d3f5cc5a0

zan1 sha1:087494262084cefee7ed484d20c8dc0580791272
zan1 sha256:4b159eb3804d05599023dd074f771d06d02870f4ab24a7165add8ac3d703b8d3

zdd1 sha1:879007efae624d2b1307214b24a956f0a8d686a8
zdd1 sha256:eecfdd4d8092dd0363fb6d4548b54c6afc8982c3ed9b34e393f1d6a921d8eaa3

zdm1 sha1:9b541b2275c06e3a7b13f28badf5294e2ae63df4
zdm1 sha256:ab136e88e19a843c4bf7713d2090d5a2186ba16a6a80dacc12eeddd256a8e556

zdm2 sha1:d77371d15817fcaa57eeec27f770c505ba974ec1
zdm2 sha256:1c1a5f57363f46a15d95ce8527b3c2c158d88d16853b4acbf81bd20fd2c89a46

zdn1 sha1:beb5d38c55283d280685ea21a0e50cfcc0ca064a
zdn1 sha256:0f0eca66183617b0aa5ad74b256540329f841470922ca6760263c996d825eb18

zmd1 sha1:d41fda41b7ec4de46b43cb7ea42a45001ae393d5
zmd1 sha256:1ed32d481852eddf31a0ce12652a0ad14bf5b7a842667b5dbb0b50f35bf1c80a

zmd2 sha1:a79ac3be9377639e1c7d1edf1ae1b3a5f0ccd8a9
zmd2 sha256:b238da211b404f8917df2d9c6f7030535e904b2186131007a3c292ec6902f933

zmm1 sha1:4ca22bae2527d3d9e1676498a0fba3b355bd1278
zmm1 sha256:072b1d85b5f34fabc99dfa46008c5418df68302d3e317430006f49b32d244226

zmm2 sha1:61422ba9c2c873416061a88cd40a59a35b576474
zmm2 sha256:81dd5d2b3c5cda16fef552256aed4e2ea0802a8450a08f308a92142112ff6dda

zmm3 sha1:697aad7715a1e7306ca76290a3dd4208fbaeddfa
zmm3 sha256:8b10fab49e9be3414aa5e9a93d0e46f9569053440138a7c19a5eb5536d8e95bf

zmn1 sha1:b16d7b25b869f2beb124efa53467d8a1550ad694
zmn1 sha256:609e4f75d1295e844c826feeba213acb0b6cfc609adfe8ff705b19e3829ae3e9

zmn2 sha1:a5c544c21cfcb07eb80a4d89a5b7d1570002edfd
zmn2 sha256:d6d03edf2dc1a3b267a8205de5f41a2ff4b03def8c7ae02052b543fb09d589fc

zna1 sha1:d12979c22fff69c59ca9409e7a8fe3ee25eaee80
zna1 sha256:b37b80e789e8ea32aa323f004628f02013f632124b0282c7fe00a127d3c64c3c

znd1 sha1:a18393c636b98e9bd7296b8b437ea4992b72440c
znd1 sha256:af92a22eee8c38410a0c9d2b5135a10aeb052cbc7cf675541ed9a67bfcaf7cf9

znm1 sha1:3fdbe17fd013303a2e981e1ca1c6cd6e72789087
znm1 sha256:f75aeaa0c11e76918e381c105f0752932c6150e941fec565d24fa31098a13dc1

znm2 sha1:7e09d6a3a14bd630913e8c75693cea32157b606d
znm2 sha256:938d73cfbaa1c902a84fb5b3afd9736aa0590367fb9bd59c6c4d072ce70fcd6d
EOF

cat >.test-plain-OA <<EOF
:000000 100644 $(test_oid zero) $(test_oid aa_1) A	AA
:000000 100644 $(test_oid zero) $(test_oid an_1) A	AN
:100644 000000 $(test_oid dd_1) $(test_oid zero) D	DD
:000000 040000 $(test_oid zero) $(test_oid df_1) A	DF
:100644 000000 $(test_oid dm_1) $(test_oid zero) D	DM
:100644 000000 $(test_oid dn_1) $(test_oid zero) D	DN
:000000 100644 $(test_oid zero) $(test_oid ll_2) A	LL
:100644 100644 $(test_oid md_1) $(test_oid md_2) M	MD
:100644 100644 $(test_oid mm_1) $(test_oid mm_2) M	MM
:100644 100644 $(test_oid mn_1) $(test_oid mn_2) M	MN
:100644 100644 $(test_oid ss_1) $(test_oid ss_2) M	SS
:100644 100644 $(test_oid tt_1) $(test_oid tt_2) M	TT
:040000 040000 $(test_oid z__1) $(test_oid z__2) M	Z
EOF

cat >.test-recursive-OA <<EOF
:000000 100644 $(test_oid zero) $(test_oid aa_1) A	AA
:000000 100644 $(test_oid zero) $(test_oid an_1) A	AN
:100644 000000 $(test_oid dd_1) $(test_oid zero) D	DD
:000000 100644 $(test_oid zero) $(test_oid dfd1) A	DF/DF
:100644 000000 $(test_oid dm_1) $(test_oid zero) D	DM
:100644 000000 $(test_oid dn_1) $(test_oid zero) D	DN
:000000 100644 $(test_oid zero) $(test_oid ll_2) A	LL
:100644 100644 $(test_oid md_1) $(test_oid md_2) M	MD
:100644 100644 $(test_oid mm_1) $(test_oid mm_2) M	MM
:100644 100644 $(test_oid mn_1) $(test_oid mn_2) M	MN
:100644 100644 $(test_oid ss_1) $(test_oid ss_2) M	SS
:100644 100644 $(test_oid tt_1) $(test_oid tt_2) M	TT
:000000 100644 $(test_oid zero) $(test_oid zaa1) A	Z/AA
:000000 100644 $(test_oid zero) $(test_oid zan1) A	Z/AN
:100644 000000 $(test_oid zdd1) $(test_oid zero) D	Z/DD
:100644 000000 $(test_oid zdm1) $(test_oid zero) D	Z/DM
:100644 000000 $(test_oid zdn1) $(test_oid zero) D	Z/DN
:100644 100644 $(test_oid zmd1) $(test_oid zmd2) M	Z/MD
:100644 100644 $(test_oid zmm1) $(test_oid zmm2) M	Z/MM
:100644 100644 $(test_oid zmn1) $(test_oid zmn2) M	Z/MN
EOF
cat >.test-plain-OB <<EOF
:000000 100644 $(test_oid zero) $(test_oid aa_2) A	AA
:100644 000000 $(test_oid dd_1) $(test_oid zero) D	DD
:000000 100644 $(test_oid zero) $(test_oid df_2) A	DF
:100644 100644 $(test_oid dm_1) $(test_oid dm_2) M	DM
:000000 100644 $(test_oid zero) $(test_oid ll_2) A	LL
:100644 000000 $(test_oid md_1) $(test_oid zero) D	MD
:100644 100644 $(test_oid mm_1) $(test_oid mm_3) M	MM
:000000 100644 $(test_oid zero) $(test_oid na_1) A	NA
:100644 000000 $(test_oid nd_1) $(test_oid zero) D	ND
:100644 100644 $(test_oid nm_1) $(test_oid nm_2) M	NM
:100644 100644 $(test_oid ss_1) $(test_oid ss_2) M	SS
:100644 100644 $(test_oid tt_1) $(test_oid tt_3) M	TT
:040000 040000 $(test_oid z__1) $(test_oid z__3) M	Z
EOF
cat >.test-recursive-OB <<EOF
:000000 100644 $(test_oid zero) $(test_oid aa_2) A	AA
:100644 000000 $(test_oid dd_1) $(test_oid zero) D	DD
:000000 100644 $(test_oid zero) $(test_oid df_2) A	DF
:100644 100644 $(test_oid dm_1) $(test_oid dm_2) M	DM
:000000 100644 $(test_oid zero) $(test_oid ll_2) A	LL
:100644 000000 $(test_oid md_1) $(test_oid zero) D	MD
:100644 100644 $(test_oid mm_1) $(test_oid mm_3) M	MM
:000000 100644 $(test_oid zero) $(test_oid na_1) A	NA
:100644 000000 $(test_oid nd_1) $(test_oid zero) D	ND
:100644 100644 $(test_oid nm_1) $(test_oid nm_2) M	NM
:100644 100644 $(test_oid ss_1) $(test_oid ss_2) M	SS
:100644 100644 $(test_oid tt_1) $(test_oid tt_3) M	TT
:000000 100644 $(test_oid zero) $(test_oid zaa2) A	Z/AA
:100644 000000 $(test_oid zdd1) $(test_oid zero) D	Z/DD
:100644 100644 $(test_oid zdm1) $(test_oid zdm2) M	Z/DM
:100644 000000 $(test_oid zmd1) $(test_oid zero) D	Z/MD
:100644 100644 $(test_oid zmm1) $(test_oid zmm3) M	Z/MM
:000000 100644 $(test_oid zero) $(test_oid zna1) A	Z/NA
:100644 000000 $(test_oid znd1) $(test_oid zero) D	Z/ND
:100644 100644 $(test_oid znm1) $(test_oid znm2) M	Z/NM
EOF
cat >.test-plain-AB <<EOF
:100644 100644 $(test_oid aa_1) $(test_oid aa_2) M	AA
:100644 000000 $(test_oid an_1) $(test_oid zero) D	AN
:000000 100644 $(test_oid zero) $(test_oid df_2) A	DF
:040000 000000 $(test_oid df_1) $(test_oid zero) D	DF
:000000 100644 $(test_oid zero) $(test_oid dm_2) A	DM
:000000 100644 $(test_oid zero) $(test_oid dn_1) A	DN
:100644 000000 $(test_oid md_2) $(test_oid zero) D	MD
:100644 100644 $(test_oid mm_2) $(test_oid mm_3) M	MM
:100644 100644 $(test_oid mn_2) $(test_oid mn_1) M	MN
:000000 100644 $(test_oid zero) $(test_oid na_1) A	NA
:100644 000000 $(test_oid nd_1) $(test_oid zero) D	ND
:100644 100644 $(test_oid nm_1) $(test_oid nm_2) M	NM
:100644 100644 $(test_oid tt_2) $(test_oid tt_3) M	TT
:040000 040000 $(test_oid z__2) $(test_oid z__3) M	Z
EOF
cat >.test-recursive-AB <<EOF
:100644 100644 $(test_oid aa_1) $(test_oid aa_2) M	AA
:100644 000000 $(test_oid an_1) $(test_oid zero) D	AN
:000000 100644 $(test_oid zero) $(test_oid df_2) A	DF
:100644 000000 $(test_oid dfd1) $(test_oid zero) D	DF/DF
:000000 100644 $(test_oid zero) $(test_oid dm_2) A	DM
:000000 100644 $(test_oid zero) $(test_oid dn_1) A	DN
:100644 000000 $(test_oid md_2) $(test_oid zero) D	MD
:100644 100644 $(test_oid mm_2) $(test_oid mm_3) M	MM
:100644 100644 $(test_oid mn_2) $(test_oid mn_1) M	MN
:000000 100644 $(test_oid zero) $(test_oid na_1) A	NA
:100644 000000 $(test_oid nd_1) $(test_oid zero) D	ND
:100644 100644 $(test_oid nm_1) $(test_oid nm_2) M	NM
:100644 100644 $(test_oid tt_2) $(test_oid tt_3) M	TT
:100644 100644 $(test_oid zaa1) $(test_oid zaa2) M	Z/AA
:100644 000000 $(test_oid zan1) $(test_oid zero) D	Z/AN
:000000 100644 $(test_oid zero) $(test_oid zdm2) A	Z/DM
:000000 100644 $(test_oid zero) $(test_oid zdn1) A	Z/DN
:100644 000000 $(test_oid zmd2) $(test_oid zero) D	Z/MD
:100644 100644 $(test_oid zmm2) $(test_oid zmm3) M	Z/MM
:100644 100644 $(test_oid zmn2) $(test_oid zmn1) M	Z/MN
:000000 100644 $(test_oid zero) $(test_oid zna1) A	Z/NA
:100644 000000 $(test_oid znd1) $(test_oid zero) D	Z/ND
:100644 100644 $(test_oid znm1) $(test_oid znm2) M	Z/NM
EOF

cmp_diff_files_output () {
    # diff-files never reports additions.  Also it does not fill in the
    # object ID for the changed files because it wants you to look at the
    # filesystem.
    sed <"$2" >.test-tmp \
	-e '/^:000000 /d;s/'$OID_REGEX'\( [MCRNDU][0-9]*\)	/'$ZERO_OID'\1	/' &&
    test_cmp "$1" .test-tmp
}

test_expect_success \
    'diff-tree of known trees.' \
    'git diff-tree $tree_O $tree_A >.test-a &&
     cmp -s .test-a .test-plain-OA'

test_expect_success \
    'diff-tree of known trees.' \
    'git diff-tree -r $tree_O $tree_A >.test-a &&
     cmp -s .test-a .test-recursive-OA'

test_expect_success \
    'diff-tree of known trees.' \
    'git diff-tree $tree_O $tree_B >.test-a &&
     cmp -s .test-a .test-plain-OB'

test_expect_success \
    'diff-tree of known trees.' \
    'git diff-tree -r $tree_O $tree_B >.test-a &&
     cmp -s .test-a .test-recursive-OB'

test_expect_success \
    'diff-tree of known trees.' \
    'git diff-tree $tree_A $tree_B >.test-a &&
     cmp -s .test-a .test-plain-AB'

test_expect_success \
    'diff-tree of known trees.' \
    'git diff-tree -r $tree_A $tree_B >.test-a &&
     cmp -s .test-a .test-recursive-AB'

test_expect_success \
    'diff-tree --stdin of known trees.' \
    'echo $tree_A $tree_B | git diff-tree --stdin > .test-a &&
     echo $tree_A $tree_B > .test-plain-ABx &&
     cat .test-plain-AB >> .test-plain-ABx &&
     cmp -s .test-a .test-plain-ABx'

test_expect_success \
    'diff-tree --stdin of known trees.' \
    'echo $tree_A $tree_B | git diff-tree -r --stdin > .test-a &&
     echo $tree_A $tree_B > .test-recursive-ABx &&
     cat .test-recursive-AB >> .test-recursive-ABx &&
     cmp -s .test-a .test-recursive-ABx'

test_expect_success \
    'diff-cache O with A in cache' \
    'git read-tree $tree_A &&
     git diff-index --cached $tree_O >.test-a &&
     cmp -s .test-a .test-recursive-OA'

test_expect_success \
    'diff-cache O with B in cache' \
    'git read-tree $tree_B &&
     git diff-index --cached $tree_O >.test-a &&
     cmp -s .test-a .test-recursive-OB'

test_expect_success \
    'diff-cache A with B in cache' \
    'git read-tree $tree_B &&
     git diff-index --cached $tree_A >.test-a &&
     cmp -s .test-a .test-recursive-AB'

test_expect_success \
    'diff-files with O in cache and A checked out' \
    'rm -fr Z [A-Z][A-Z] &&
     git read-tree $tree_A &&
     git checkout-index -f -a &&
     git read-tree --reset $tree_O &&
     test_must_fail git update-index --refresh -q &&
     git diff-files >.test-a &&
     cmp_diff_files_output .test-a .test-recursive-OA'

test_expect_success \
    'diff-files with O in cache and B checked out' \
    'rm -fr Z [A-Z][A-Z] &&
     git read-tree $tree_B &&
     git checkout-index -f -a &&
     git read-tree --reset $tree_O &&
     test_must_fail git update-index --refresh -q &&
     git diff-files >.test-a &&
     cmp_diff_files_output .test-a .test-recursive-OB'

test_expect_success \
    'diff-files with A in cache and B checked out' \
    'rm -fr Z [A-Z][A-Z] &&
     git read-tree $tree_B &&
     git checkout-index -f -a &&
     git read-tree --reset $tree_A &&
     test_must_fail git update-index --refresh -q &&
     git diff-files >.test-a &&
     cmp_diff_files_output .test-a .test-recursive-AB'

################################################################
# Now we have established the baseline, we do not have to
# rely on individual object ID values that much.

test_expect_success \
    'diff-tree O A == diff-tree -R A O' \
    'git diff-tree $tree_O $tree_A >.test-a &&
    git diff-tree -R $tree_A $tree_O >.test-b &&
    cmp -s .test-a .test-b'

test_expect_success \
    'diff-tree -r O A == diff-tree -r -R A O' \
    'git diff-tree -r $tree_O $tree_A >.test-a &&
    git diff-tree -r -R $tree_A $tree_O >.test-b &&
    cmp -s .test-a .test-b'

test_expect_success \
    'diff-tree B A == diff-tree -R A B' \
    'git diff-tree $tree_B $tree_A >.test-a &&
    git diff-tree -R $tree_A $tree_B >.test-b &&
    cmp -s .test-a .test-b'

test_expect_success \
    'diff-tree -r B A == diff-tree -r -R A B' \
    'git diff-tree -r $tree_B $tree_A >.test-a &&
    git diff-tree -r -R $tree_A $tree_B >.test-b &&
    cmp -s .test-a .test-b'

test_expect_success \
    'diff can read from stdin' \
    'test_must_fail git diff --no-index -- MN - < NN |
        grep -v "^index" | sed "s#/-#/NN#" >.test-a &&
    test_must_fail git diff --no-index -- MN NN |
        grep -v "^index" >.test-b &&
    test_cmp .test-a .test-b'

test_done