Andrew's git - gitweb.git/blob

   1#!/bin/sh
   2
   3test_description='git fsck random collection of tests
   4
   5* (HEAD) B
   6* (master) A
   7'
   8
   9. ./test-lib.sh
  10
  11test_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
  23test_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
  35test_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
  44test_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 "$file"
  53        }
  54'
  55
  56test_expect_success 'object with bad sha1' '
  57        sha=$(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 $cmt &&
  70        test_when_finished "git update-ref -d refs/heads/bogus" &&
  71
  72        test_must_fail git fsck 2>out &&
  73        cat out &&
  74        grep "$sha.*corrupt" out
  75'
  76
  77test_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
  85test_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 $new" out
  95'
  96
  97test_expect_success 'email with embedded > is not okay' '
  98        git cat-file commit HEAD >basis &&
  99        sed "s/@[a-z]/&>/" basis >bad-email &&
 100        new=$(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        test_must_fail git fsck 2>out &&
 105        cat out &&
 106        grep "error in commit $new" out
 107'
 108
 109test_expect_success 'missing < email delimiter is reported nicely' '
 110        git cat-file commit HEAD >basis &&
 111        sed "s/<//" basis >bad-email-2 &&
 112        new=$(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        test_must_fail git fsck 2>out &&
 117        cat out &&
 118        grep "error in commit $new.* - bad name" out
 119'
 120
 121test_expect_success 'missing email is reported nicely' '
 122        git cat-file commit HEAD >basis &&
 123        sed "s/[a-z]* <[^>]*>//" basis >bad-email-3 &&
 124        new=$(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        test_must_fail git fsck 2>out &&
 129        cat out &&
 130        grep "error in commit $new.* - missing email" out
 131'
 132
 133test_expect_success '> in name is reported' '
 134        git cat-file commit HEAD >basis &&
 135        sed "s/ </> </" basis >bad-email-4 &&
 136        new=$(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        test_must_fail git fsck 2>out &&
 141        cat out &&
 142        grep "error in commit $new" out
 143'
 144
 145# date is 2^64 + 1
 146test_expect_success 'integer overflow in timestamps is reported' '
 147        git cat-file commit HEAD >basis &&
 148        sed "s/^\\(author .*>\\) [0-9]*/\\1 18446744073709551617/" \
 149                <basis >bad-timestamp &&
 150        new=$(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        test_must_fail git fsck 2>out &&
 155        cat out &&
 156        grep "error in commit $new.*integer overflow" out
 157'
 158
 159test_expect_success 'malformatted tree object' '
 160        test_when_finished "git update-ref -d refs/tags/wrong" &&
 161        test_when_finished "remove_object \$T" &&
 162        T=$(
 163                GIT_INDEX_FILE=test-index &&
 164                export GIT_INDEX_FILE &&
 165                rm -f test-index &&
 166                >x &&
 167                git add x &&
 168                T=$(git write-tree) &&
 169                (
 170                        git cat-file tree $T &&
 171                        git cat-file tree $T
 172                ) |
 173                git hash-object -w -t tree --stdin
 174        ) &&
 175        test_must_fail git fsck 2>out &&
 176        grep "error in tree .*contains duplicate file entries" out
 177'
 178
 179test_expect_success 'tag pointing to nonexistent' '
 180        cat >invalid-tag <<-\EOF &&
 181        object ffffffffffffffffffffffffffffffffffffffff
 182        type commit
 183        tag invalid
 184        tagger T A Gger <tagger@example.com> 1234567890 -0000
 185
 186        This is an invalid tag.
 187        EOF
 188
 189        tag=$(git hash-object -t tag -w --stdin <invalid-tag) &&
 190        test_when_finished "remove_object $tag" &&
 191        echo $tag >.git/refs/tags/invalid &&
 192        test_when_finished "git update-ref -d refs/tags/invalid" &&
 193        test_must_fail git fsck --tags >out &&
 194        cat out &&
 195        grep "broken link" out
 196'
 197
 198test_expect_success 'tag pointing to something else than its type' '
 199        sha=$(echo blob | git hash-object -w --stdin) &&
 200        test_when_finished "remove_object $sha" &&
 201        cat >wrong-tag <<-EOF &&
 202        object $sha
 203        type commit
 204        tag wrong
 205        tagger T A Gger <tagger@example.com> 1234567890 -0000
 206
 207        This is an invalid tag.
 208        EOF
 209
 210        tag=$(git hash-object -t tag -w --stdin <wrong-tag) &&
 211        test_when_finished "remove_object $tag" &&
 212        echo $tag >.git/refs/tags/wrong &&
 213        test_when_finished "git update-ref -d refs/tags/wrong" &&
 214        test_must_fail git fsck --tags
 215'
 216
 217test_expect_success 'cleaned up' '
 218        git fsck >actual 2>&1 &&
 219        test_cmp empty actual
 220'
 221
 222test_expect_success 'rev-list --verify-objects' '
 223        git rev-list --verify-objects --all >/dev/null 2>out &&
 224        test_cmp empty out
 225'
 226
 227test_expect_success 'rev-list --verify-objects with bad sha1' '
 228        sha=$(echo blob | git hash-object -w --stdin) &&
 229        old=$(echo $sha | sed "s+^..+&/+") &&
 230        new=$(dirname $old)/ffffffffffffffffffffffffffffffffffffff &&
 231        sha="$(dirname $new)$(basename $new)" &&
 232        mv .git/objects/$old .git/objects/$new &&
 233        test_when_finished "remove_object $sha" &&
 234        git update-index --add --cacheinfo 100644 $sha foo &&
 235        test_when_finished "git read-tree -u --reset HEAD" &&
 236        tree=$(git write-tree) &&
 237        test_when_finished "remove_object $tree" &&
 238        cmt=$(echo bogus | git commit-tree $tree) &&
 239        test_when_finished "remove_object $cmt" &&
 240        git update-ref refs/heads/bogus $cmt &&
 241        test_when_finished "git update-ref -d refs/heads/bogus" &&
 242
 243        test_might_fail git rev-list --verify-objects refs/heads/bogus >/dev/null 2>out &&
 244        cat out &&
 245        grep -q "error: sha1 mismatch 63ffffffffffffffffffffffffffffffffffffff" out
 246'
 247
 248_bz='\0'
 249_bz5="$_bz$_bz$_bz$_bz$_bz"
 250_bz20="$_bz5$_bz5$_bz5$_bz5"
 251
 252test_expect_success 'fsck notices blob entry pointing to null sha1' '
 253        (git init null-blob &&
 254         cd null-blob &&
 255         sha=$(printf "100644 file$_bz$_bz20" |
 256               git hash-object -w --stdin -t tree) &&
 257          git fsck 2>out &&
 258          cat out &&
 259          grep "warning.*null sha1" out
 260        )
 261'
 262
 263test_expect_success 'fsck notices submodule entry pointing to null sha1' '
 264        (git init null-commit &&
 265         cd null-commit &&
 266         sha=$(printf "160000 submodule$_bz$_bz20" |
 267               git hash-object -w --stdin -t tree) &&
 268          git fsck 2>out &&
 269          cat out &&
 270          grep "warning.*null sha1" out
 271        )
 272'
 273
 274test_expect_success 'fsck notices "." and ".." in trees' '
 275        (
 276                git init dots &&
 277                cd dots &&
 278                blob=$(echo foo | git hash-object -w --stdin) &&
 279                tab=$(printf "\\t") &&
 280                git mktree <<-EOF &&
 281                100644 blob $blob$tab.
 282                100644 blob $blob$tab..
 283                EOF
 284                git fsck 2>out &&
 285                cat out &&
 286                grep "warning.*\\." out
 287        )
 288'
 289
 290test_expect_success 'fsck notices ".git" in trees' '
 291        (
 292                git init dotgit &&
 293                cd dotgit &&
 294                blob=$(echo foo | git hash-object -w --stdin) &&
 295                tab=$(printf "\\t") &&
 296                git mktree <<-EOF &&
 297                100644 blob $blob$tab.git
 298                EOF
 299                git fsck 2>out &&
 300                cat out &&
 301                grep "warning.*\\.git" out
 302        )
 303'
 304
 305# create a static test repo which is broken by omitting
 306# one particular object ($1, which is looked up via rev-parse
 307# in the new repository).
 308create_repo_missing () {
 309        rm -rf missing &&
 310        git init missing &&
 311        (
 312                cd missing &&
 313                git commit -m one --allow-empty &&
 314                mkdir subdir &&
 315                echo content >subdir/file &&
 316                git add subdir/file &&
 317                git commit -m two &&
 318                unrelated=$(echo unrelated | git hash-object --stdin -w) &&
 319                git tag -m foo tag $unrelated &&
 320                sha1=$(git rev-parse --verify "$1") &&
 321                path=$(echo $sha1 | sed 's|..|&/|') &&
 322                rm .git/objects/$path
 323        )
 324}
 325
 326test_expect_success 'fsck notices missing blob' '
 327        create_repo_missing HEAD:subdir/file &&
 328        test_must_fail git -C missing fsck
 329'
 330
 331test_expect_success 'fsck notices missing subtree' '
 332        create_repo_missing HEAD:subdir &&
 333        test_must_fail git -C missing fsck
 334'
 335
 336test_expect_success 'fsck notices missing root tree' '
 337        create_repo_missing HEAD^{tree} &&
 338        test_must_fail git -C missing fsck
 339'
 340
 341test_expect_success 'fsck notices missing parent' '
 342        create_repo_missing HEAD^ &&
 343        test_must_fail git -C missing fsck
 344'
 345
 346test_expect_success 'fsck notices missing tagged object' '
 347        create_repo_missing tag^{blob} &&
 348        test_must_fail git -C missing fsck
 349'
 350
 351test_expect_success 'fsck notices ref pointing to missing commit' '
 352        create_repo_missing HEAD &&
 353        test_must_fail git -C missing fsck
 354'
 355
 356test_expect_success 'fsck notices ref pointing to missing tag' '
 357        create_repo_missing tag &&
 358        test_must_fail git -C missing fsck
 359'
 360
 361test_done