t/t1450-fsck.sh

   1 #!/bin/sh
   2
   3 test_description='git fsck random collection of tests
   4
   5 * (HEAD) B
   6 * (master) A
   7 '
   8
   9 . ./test-lib.sh
  10
  11 test_expect_success setup '
  12         git config gc.auto 0 &&
  13         git config i18n.commitencoding ISO-8859-1 &&
  14         test_commit A fileA one &&
  15         git config --unset i18n.commitencoding &&
  16         git checkout HEAD^0 &&
  17         test_commit B fileB two &&
  18         git tag -d A B &&
  19         git reflog expire --expire=now --all &&
  20         >empty
  21 '
  22
  23 test_expect_success 'loose objects borrowed from alternate are not missing' '
  24         mkdir another &&
  25         (
  26                 cd another &&
  27                 git init &&
  28                 echo ../../../.git/objects >.git/objects/info/alternates &&
  29                 test_commit C fileC one &&
  30                 git fsck --no-dangling >../actual 2>&1
  31         ) &&
  32         test_cmp empty actual
  33 '
  34
  35 test_expect_success 'HEAD is part of refs, valid objects appear valid' '
  36         git fsck >actual 2>&1 &&
  37         test_cmp empty actual
  38 '
  39
  40 # Corruption tests follow.  Make sure to remove all traces of the
  41 # specific corruption you test afterwards, lest a later test trip over
  42 # it.
  43
  44 test_expect_success 'setup: helpers for corruption tests' '
  45         sha1_file() {
  46                 echo "$*" | sed "s#..#.git/objects/&/#"
  47         } &&
  48
  49         remove_object() {
  50                 file=$(sha1_file "$*") &&
  51                 test -e "$file" &&
  52                 rm -f "$file"
  53         }
  54 '
  55
  56 test_expect_success 'object with bad sha1' '
  57         sha=$(echo blob | git hash-object -w --stdin) &&
  58         old=$(echo $sha | sed "s+^..+&/+") &&
  59         new=$(dirname $old)/ffffffffffffffffffffffffffffffffffffff &&
  60         sha="$(dirname $new)$(basename $new)" &&
  61         mv .git/objects/$old .git/objects/$new &&
  62         test_when_finished "remove_object $sha" &&
  63         git update-index --add --cacheinfo 100644 $sha foo &&
  64         test_when_finished "git read-tree -u --reset HEAD" &&
  65         tree=$(git write-tree) &&
  66         test_when_finished "remove_object $tree" &&
  67         cmt=$(echo bogus | git commit-tree $tree) &&
  68         test_when_finished "remove_object $cmt" &&
  69         git update-ref refs/heads/bogus $cmt &&
  70         test_when_finished "git update-ref -d refs/heads/bogus" &&
  71
  72         test_might_fail git fsck 2>out &&
  73         cat out &&
  74         grep "$sha.*corrupt" out
  75 '
  76
  77 test_expect_success 'branch pointing to non-commit' '
  78         git rev-parse HEAD^{tree} >.git/refs/heads/invalid &&
  79         test_when_finished "git update-ref -d refs/heads/invalid" &&
  80         git fsck 2>out &&
  81         cat out &&
  82         grep "not a commit" out
  83 '
  84
  85 test_expect_success 'email without @ is okay' '
  86         git cat-file commit HEAD >basis &&
  87         sed "s/@/AT/" basis >okay &&
  88         new=$(git hash-object -t commit -w --stdin <okay) &&
  89         test_when_finished "remove_object $new" &&
  90         git update-ref refs/heads/bogus "$new" &&
  91         test_when_finished "git update-ref -d refs/heads/bogus" &&
  92         git fsck 2>out &&
  93         cat out &&
  94         ! grep "commit $new" out
  95 '
  96
  97 test_expect_success 'email with embedded > is not okay' '
  98         git cat-file commit HEAD >basis &&
  99         sed "s/@[a-z]/&>/" basis >bad-email &&
 100         new=$(git hash-object -t commit -w --stdin <bad-email) &&
 101         test_when_finished "remove_object $new" &&
 102         git update-ref refs/heads/bogus "$new" &&
 103         test_when_finished "git update-ref -d refs/heads/bogus" &&
 104         git fsck 2>out &&
 105         cat out &&
 106         grep "error in commit $new" out
 107 '
 108
 109 test_expect_success 'missing < email delimiter is reported nicely' '
 110         git cat-file commit HEAD >basis &&
 111         sed "s/<//" basis >bad-email-2 &&
 112         new=$(git hash-object -t commit -w --stdin <bad-email-2) &&
 113         test_when_finished "remove_object $new" &&
 114         git update-ref refs/heads/bogus "$new" &&
 115         test_when_finished "git update-ref -d refs/heads/bogus" &&
 116         git fsck 2>out &&
 117         cat out &&
 118         grep "error in commit $new.* - bad name" out
 119 '
 120
 121 test_expect_success 'missing email is reported nicely' '
 122         git cat-file commit HEAD >basis &&
 123         sed "s/[a-z]* <[^>]*>//" basis >bad-email-3 &&
 124         new=$(git hash-object -t commit -w --stdin <bad-email-3) &&
 125         test_when_finished "remove_object $new" &&
 126         git update-ref refs/heads/bogus "$new" &&
 127         test_when_finished "git update-ref -d refs/heads/bogus" &&
 128         git fsck 2>out &&
 129         cat out &&
 130         grep "error in commit $new.* - missing email" out
 131 '
 132
 133 test_expect_success '> in name is reported' '
 134         git cat-file commit HEAD >basis &&
 135         sed "s/ </> </" basis >bad-email-4 &&
 136         new=$(git hash-object -t commit -w --stdin <bad-email-4) &&
 137         test_when_finished "remove_object $new" &&
 138         git update-ref refs/heads/bogus "$new" &&
 139         test_when_finished "git update-ref -d refs/heads/bogus" &&
 140         git fsck 2>out &&
 141         cat out &&
 142         grep "error in commit $new" out
 143 '
 144
 145 # date is 2^64 + 1
 146 test_expect_success 'integer overflow in timestamps is reported' '
 147         git cat-file commit HEAD >basis &&
 148         sed "s/^\\(author .*>\\) [0-9]*/\\1 18446744073709551617/" \
 149                 <basis >bad-timestamp &&
 150         new=$(git hash-object -t commit -w --stdin <bad-timestamp) &&
 151         test_when_finished "remove_object $new" &&
 152         git update-ref refs/heads/bogus "$new" &&
 153         test_when_finished "git update-ref -d refs/heads/bogus" &&
 154         git fsck 2>out &&
 155         cat out &&
 156         grep "error in commit $new.*integer overflow" out
 157 '
 158
 159 test_expect_success 'tag pointing to nonexistent' '
 160         cat >invalid-tag <<-\EOF &&
 161         object ffffffffffffffffffffffffffffffffffffffff
 162         type commit
 163         tag invalid
 164         tagger T A Gger <tagger@example.com> 1234567890 -0000
 165
 166         This is an invalid tag.
 167         EOF
 168
 169         tag=$(git hash-object -t tag -w --stdin <invalid-tag) &&
 170         test_when_finished "remove_object $tag" &&
 171         echo $tag >.git/refs/tags/invalid &&
 172         test_when_finished "git update-ref -d refs/tags/invalid" &&
 173         test_must_fail git fsck --tags >out &&
 174         cat out &&
 175         grep "broken link" out
 176 '
 177
 178 test_expect_success 'tag pointing to something else than its type' '
 179         sha=$(echo blob | git hash-object -w --stdin) &&
 180         test_when_finished "remove_object $sha" &&
 181         cat >wrong-tag <<-EOF &&
 182         object $sha
 183         type commit
 184         tag wrong
 185         tagger T A Gger <tagger@example.com> 1234567890 -0000
 186
 187         This is an invalid tag.
 188         EOF
 189
 190         tag=$(git hash-object -t tag -w --stdin <wrong-tag) &&
 191         test_when_finished "remove_object $tag" &&
 192         echo $tag >.git/refs/tags/wrong &&
 193         test_when_finished "git update-ref -d refs/tags/wrong" &&
 194         test_must_fail git fsck --tags
 195 '
 196
 197 test_expect_success 'tag with incorrect tag name & missing tagger' '
 198         sha=$(git rev-parse HEAD) &&
 199         cat >wrong-tag <<-EOF &&
 200         object $sha
 201         type commit
 202         tag wrong name format
 203
 204         This is an invalid tag.
 205         EOF
 206
 207         tag=$(git hash-object -t tag -w --stdin <wrong-tag) &&
 208         test_when_finished "remove_object $tag" &&
 209         echo $tag >.git/refs/tags/wrong &&
 210         test_when_finished "git update-ref -d refs/tags/wrong" &&
 211         git fsck --tags 2>out &&
 212         grep "invalid .tag. name" out &&
 213         grep "expected .tagger. line" out
 214 '
 215
 216 test_expect_success 'tag with bad tagger' '
 217         sha=$(git rev-parse HEAD) &&
 218         cat >wrong-tag <<-EOF &&
 219         object $sha
 220         type commit
 221         tag not-quite-wrong
 222         tagger Bad Tagger Name
 223
 224         This is an invalid tag.
 225         EOF
 226
 227         tag=$(git hash-object --literally -t tag -w --stdin <wrong-tag) &&
 228         test_when_finished "remove_object $tag" &&
 229         echo $tag >.git/refs/tags/wrong &&
 230         test_when_finished "git update-ref -d refs/tags/wrong" &&
 231         test_must_fail git fsck --tags 2>out &&
 232         grep "error in tag .*: invalid author/committer" out
 233 '
 234
 235 test_expect_success 'cleaned up' '
 236         git fsck >actual 2>&1 &&
 237         test_cmp empty actual
 238 '
 239
 240 test_expect_success 'rev-list --verify-objects' '
 241         git rev-list --verify-objects --all >/dev/null 2>out &&
 242         test_cmp empty out
 243 '
 244
 245 test_expect_success 'rev-list --verify-objects with bad sha1' '
 246         sha=$(echo blob | git hash-object -w --stdin) &&
 247         old=$(echo $sha | sed "s+^..+&/+") &&
 248         new=$(dirname $old)/ffffffffffffffffffffffffffffffffffffff &&
 249         sha="$(dirname $new)$(basename $new)" &&
 250         mv .git/objects/$old .git/objects/$new &&
 251         test_when_finished "remove_object $sha" &&
 252         git update-index --add --cacheinfo 100644 $sha foo &&
 253         test_when_finished "git read-tree -u --reset HEAD" &&
 254         tree=$(git write-tree) &&
 255         test_when_finished "remove_object $tree" &&
 256         cmt=$(echo bogus | git commit-tree $tree) &&
 257         test_when_finished "remove_object $cmt" &&
 258         git update-ref refs/heads/bogus $cmt &&
 259         test_when_finished "git update-ref -d refs/heads/bogus" &&
 260
 261         test_might_fail git rev-list --verify-objects refs/heads/bogus >/dev/null 2>out &&
 262         cat out &&
 263         grep -q "error: sha1 mismatch 63ffffffffffffffffffffffffffffffffffffff" out
 264 '
 265
 266 _bz='\0'
 267 _bz5="$_bz$_bz$_bz$_bz$_bz"
 268 _bz20="$_bz5$_bz5$_bz5$_bz5"
 269
 270 test_expect_success 'fsck notices blob entry pointing to null sha1' '
 271         (git init null-blob &&
 272          cd null-blob &&
 273          sha=$(printf "100644 file$_bz$_bz20" |
 274                git hash-object -w --stdin -t tree) &&
 275           git fsck 2>out &&
 276           cat out &&
 277           grep "warning.*null sha1" out
 278         )
 279 '
 280
 281 test_expect_success 'fsck notices submodule entry pointing to null sha1' '
 282         (git init null-commit &&
 283          cd null-commit &&
 284          sha=$(printf "160000 submodule$_bz$_bz20" |
 285                git hash-object -w --stdin -t tree) &&
 286           git fsck 2>out &&
 287           cat out &&
 288           grep "warning.*null sha1" out
 289         )
 290 '
 291
 292 test_expect_success 'fsck notices "." and ".." in trees' '
 293         (
 294                 git init dots &&
 295                 cd dots &&
 296                 blob=$(echo foo | git hash-object -w --stdin) &&
 297                 tab=$(printf "\\t") &&
 298                 git mktree <<-EOF &&
 299                 100644 blob $blob$tab.
 300                 100644 blob $blob$tab..
 301                 EOF
 302                 git fsck 2>out &&
 303                 cat out &&
 304                 grep "warning.*\\." out
 305         )
 306 '
 307
 308 test_expect_success 'fsck notices ".git" in trees' '
 309         (
 310                 git init dotgit &&
 311                 cd dotgit &&
 312                 blob=$(echo foo | git hash-object -w --stdin) &&
 313                 tab=$(printf "\\t") &&
 314                 git mktree <<-EOF &&
 315                 100644 blob $blob$tab.git
 316                 EOF
 317                 git fsck 2>out &&
 318                 cat out &&
 319                 grep "warning.*\\.git" out
 320         )
 321 '
 322
 323 test_done