contrib/subtree: ensure only one rev is provided
[git/git.git] / t / t1060-object-corruption.sh
1 #!/bin/sh
2
3 test_description='see how we handle various forms of corruption'
4 . ./test-lib.sh
5
6 # convert "1234abcd" to ".git/objects/12/34abcd"
7 obj_to_file() {
8 echo "$(git rev-parse --git-dir)/objects/$(git rev-parse "$1" | sed 's,..,&/,')"
9 }
10
11 # Convert byte at offset "$2" of object "$1" into '\0'
12 corrupt_byte() {
13 obj_file=$(obj_to_file "$1") &&
14 chmod +w "$obj_file" &&
15 printf '\0' | dd of="$obj_file" bs=1 seek="$2" conv=notrunc
16 }
17
18 test_expect_success 'setup corrupt repo' '
19 git init bit-error &&
20 (
21 cd bit-error &&
22 test_commit content &&
23 corrupt_byte HEAD:content.t 10
24 ) &&
25 git init no-bit-error &&
26 (
27 # distinct commit from bit-error, but containing a
28 # non-corrupted version of the same blob
29 cd no-bit-error &&
30 test_tick &&
31 test_commit content
32 )
33 '
34
35 test_expect_success 'setup repo with missing object' '
36 git init missing &&
37 (
38 cd missing &&
39 test_commit content &&
40 rm -f "$(obj_to_file HEAD:content.t)"
41 )
42 '
43
44 test_expect_success 'setup repo with misnamed object' '
45 git init misnamed &&
46 (
47 cd misnamed &&
48 test_commit content &&
49 good=$(obj_to_file HEAD:content.t) &&
50 blob=$(echo corrupt | git hash-object -w --stdin) &&
51 bad=$(obj_to_file $blob) &&
52 rm -f "$good" &&
53 mv "$bad" "$good"
54 )
55 '
56
57 test_expect_success 'streaming a corrupt blob fails' '
58 (
59 cd bit-error &&
60 test_must_fail git cat-file blob HEAD:content.t
61 )
62 '
63
64 test_expect_success 'getting type of a corrupt blob fails' '
65 (
66 cd bit-error &&
67 test_must_fail git cat-file -s HEAD:content.t
68 )
69 '
70
71 test_expect_success 'read-tree -u detects bit-errors in blobs' '
72 (
73 cd bit-error &&
74 rm -f content.t &&
75 test_must_fail git read-tree --reset -u HEAD
76 )
77 '
78
79 test_expect_success 'read-tree -u detects missing objects' '
80 (
81 cd missing &&
82 rm -f content.t &&
83 test_must_fail git read-tree --reset -u HEAD
84 )
85 '
86
87 # We use --bare to make sure that the transport detects it, not the checkout
88 # phase.
89 test_expect_success 'clone --no-local --bare detects corruption' '
90 test_must_fail git clone --no-local --bare bit-error corrupt-transport
91 '
92
93 test_expect_success 'clone --no-local --bare detects missing object' '
94 test_must_fail git clone --no-local --bare missing missing-transport
95 '
96
97 test_expect_success 'clone --no-local --bare detects misnamed object' '
98 test_must_fail git clone --no-local --bare misnamed misnamed-transport
99 '
100
101 # We do not expect --local to detect corruption at the transport layer,
102 # so we are really checking the checkout() code path.
103 test_expect_success 'clone --local detects corruption' '
104 test_must_fail git clone --local bit-error corrupt-checkout
105 '
106
107 test_expect_success 'error detected during checkout leaves repo intact' '
108 test_path_is_dir corrupt-checkout/.git
109 '
110
111 test_expect_success 'clone --local detects missing objects' '
112 test_must_fail git clone --local missing missing-checkout
113 '
114
115 test_expect_failure 'clone --local detects misnamed objects' '
116 test_must_fail git clone --local misnamed misnamed-checkout
117 '
118
119 test_expect_success 'fetch into corrupted repo with index-pack' '
120 cp -R bit-error bit-error-cp &&
121 test_when_finished "rm -rf bit-error-cp" &&
122 (
123 cd bit-error-cp &&
124 test_must_fail git -c transfer.unpackLimit=1 \
125 fetch ../no-bit-error 2>stderr &&
126 test_i18ngrep ! -i collision stderr
127 )
128 '
129
130 test_done