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#!/bin/sh
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test_description='git fsck random collection of tests'
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. ./test-lib.sh
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test_expect_success setup '
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test_commit A fileA one &&
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git checkout HEAD^0 &&
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test_commit B fileB two &&
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git tag -d A B &&
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git reflog expire --expire=now --all
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'
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test_expect_success 'HEAD is part of refs' '
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test 0 = $(git fsck | wc -l)
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'
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test_expect_success 'loose objects borrowed from alternate are not missing' '
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mkdir another &&
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(
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cd another &&
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git init &&
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echo ../../../.git/objects >.git/objects/info/alternates &&
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test_commit C fileC one &&
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git fsck >out &&
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! grep "missing blob" out
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)
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'
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# Corruption tests follow. Make sure to remove all traces of the
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# specific corruption you test afterwards, lest a later test trip over
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# it.
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test_expect_success 'object with bad sha1' '
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sha=$(echo blob | git hash-object -w --stdin) &&
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echo $sha &&
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old=$(echo $sha | sed "s+^..+&/+") &&
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new=$(dirname $old)/ffffffffffffffffffffffffffffffffffffff &&
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sha="$(dirname $new)$(basename $new)"
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mv .git/objects/$old .git/objects/$new &&
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git update-index --add --cacheinfo 100644 $sha foo &&
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tree=$(git write-tree) &&
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cmt=$(echo bogus | git commit-tree $tree) &&
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git update-ref refs/heads/bogus $cmt &&
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(git fsck 2>out; true) &&
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grep "$sha.*corrupt" out &&
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rm -f .git/objects/$new &&
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git update-ref -d refs/heads/bogus &&
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git read-tree -u --reset HEAD
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'
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test_expect_success 'branch pointing to non-commit' '
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git rev-parse HEAD^{tree} > .git/refs/heads/invalid &&
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git fsck 2>out &&
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grep "not a commit" out &&
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git update-ref -d refs/heads/invalid
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'
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cat > invalid-tag <<EOF
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object ffffffffffffffffffffffffffffffffffffffff
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type commit
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tag invalid
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tagger T A Gger <tagger@example.com> 1234567890 -0000
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This is an invalid tag.
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EOF
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test_expect_success 'tag pointing to nonexistent' '
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tag=$(git hash-object -t tag -w --stdin < invalid-tag) &&
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echo $tag > .git/refs/tags/invalid &&
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test_must_fail git fsck --tags >out &&
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cat out &&
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grep "broken link" out &&
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rm .git/refs/tags/invalid
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'
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cat > wrong-tag <<EOF
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object $(echo blob | git hash-object -w --stdin)
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type commit
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tag wrong
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tagger T A Gger <tagger@example.com> 1234567890 -0000
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This is an invalid tag.
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EOF
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test_expect_success 'tag pointing to something else than its type' '
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tag=$(git hash-object -t tag -w --stdin < wrong-tag) &&
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echo $tag > .git/refs/tags/wrong &&
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test_must_fail git fsck --tags 2>out &&
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cat out &&
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grep "error in tag.*broken links" out &&
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rm .git/refs/tags/wrong
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'
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test_done
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