summaryrefslogtreecommitdiff
path: root/t/t4012-diff-binary.sh
blob: 7b0e759c74bac0fbff2a4bd7ec4c6f92df70e2c0 (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
#!/bin/sh
#
# Copyright (c) 2006 Junio C Hamano
#

test_description='Binary diff and apply
'

. ./test-lib.sh

cat >expect.binary-numstat <<\EOF
1	1	a
-	-	b
1	1	c
-	-	d
EOF

test_expect_success 'prepare repository' '
	echo AIT >a && echo BIT >b && echo CIT >c && echo DIT >d &&
	git update-index --add a b c d &&
	echo git >a &&
	cat "$TEST_DIRECTORY"/test-binary-1.png >b &&
	echo git >c &&
	cat b b >d
'

cat > expected <<\EOF
 a |    2 +-
 b |  Bin
 c |    2 +-
 d |  Bin
 4 files changed, 2 insertions(+), 2 deletions(-)
EOF
test_expect_success 'apply --stat output for binary file change' '
	git diff >diff &&
	git apply --stat --summary <diff >current &&
	test_i18ncmp expected current
'

test_expect_success 'diff --shortstat output for binary file change' '
	tail -n 1 expected >expect &&
	git diff --shortstat >current &&
	test_i18ncmp expect current
'

test_expect_success 'diff --shortstat output for binary file change only' '
	echo " 1 file changed, 0 insertions(+), 0 deletions(-)" >expected &&
	git diff --shortstat -- b >current &&
	test_i18ncmp expected current
'

test_expect_success 'apply --numstat notices binary file change' '
	git diff >diff &&
	git apply --numstat <diff >current &&
	test_cmp expect.binary-numstat current
'

test_expect_success 'apply --numstat understands diff --binary format' '
	git diff --binary >diff &&
	git apply --numstat <diff >current &&
	test_cmp expect.binary-numstat current
'

# apply needs to be able to skip the binary material correctly
# in order to report the line number of a corrupt patch.
test_expect_success 'apply detecting corrupt patch correctly' '
	git diff >output &&
	sed -e "s/-CIT/xCIT/" <output >broken &&
	if git apply --stat --summary broken 2>detected
	then
		echo unhappy - should have detected an error
		(exit 1)
	else
		echo happy
	fi &&
	detected=`cat detected` &&
	detected=`expr "$detected" : "fatal.*at line \\([0-9]*\\)\$"` &&
	detected=`sed -ne "${detected}p" broken` &&
	test "$detected" = xCIT
'

test_expect_success 'apply detecting corrupt patch correctly' '
	git diff --binary | sed -e "s/-CIT/xCIT/" >broken &&
	if git apply --stat --summary broken 2>detected
	then
		echo unhappy - should have detected an error
		(exit 1)
	else
		echo happy
	fi &&
	detected=`cat detected` &&
	detected=`expr "$detected" : "fatal.*at line \\([0-9]*\\)\$"` &&
	detected=`sed -ne "${detected}p" broken` &&
	test "$detected" = xCIT
'

test_expect_success 'initial commit' 'git commit -a -m initial'

# Try removal (b), modification (d), and creation (e).
test_expect_success 'diff-index with --binary' '
	echo AIT >a && mv b e && echo CIT >c && cat e >d &&
	git update-index --add --remove a b c d e &&
	tree0=`git write-tree` &&
	git diff --cached --binary >current &&
	git apply --stat --summary current
'

test_expect_success 'apply binary patch' '
	git reset --hard &&
	git apply --binary --index <current &&
	tree1=`git write-tree` &&
	test "$tree1" = "$tree0"
'

test_expect_success 'diff --no-index with binary creation' '
	echo Q | q_to_nul >binary &&
	(: hide error code from diff, which just indicates differences
	 git diff --binary --no-index /dev/null binary >current ||
	 true
	) &&
	rm binary &&
	git apply --binary <current &&
	echo Q >expected &&
	nul_to_q <binary >actual &&
	test_cmp expected actual
'

cat >expect <<EOF
 binfile  |   Bin 0 -> 1026 bytes
 textfile | 10000 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
EOF

test_expect_success 'diff --stat with binary files and big change count' '
	echo X | dd of=binfile bs=1k seek=1 &&
	git add binfile &&
	i=0 &&
	while test $i -lt 10000; do
		echo $i &&
		i=$(($i + 1))
	done >textfile &&
	git add textfile &&
	git diff --cached --stat binfile textfile >output &&
	grep " | " output >actual &&
	test_cmp expect actual
'

test_done