(command.CommandList
  children: [
    (command.ShAssignment
      pairs: [
        (assign_pair
          lhs: (sh_lhs_expr.Name name:test_description)
          op: assign_op.Equal
          rhs: 
            {
              (SQ <'git fsck random collection of tests\n'> <'\n'> <'* (HEAD) B\n'> <'* (master) A\n'>)
            }
          spids: [4]
        )
      ]
    )
    (C {<.>} {<'./test-lib.sh'>})
    (C {<test_expect_success>} {<setup>} 
      {
        (SQ <'\n'> <'\tgit config gc.auto 0 &&\n'> <'\tgit config i18n.commitencoding ISO-8859-1 &&\n'> 
          <'\ttest_commit A fileA one &&\n'> <'\tgit config --unset i18n.commitencoding &&\n'> <'\tgit checkout HEAD^0 &&\n'> 
          <'\ttest_commit B fileB two &&\n'> <'\tgit tag -d A B &&\n'> <'\tgit reflog expire --expire=now --all &&\n'> <'\t>empty\n'>
        )
      }
    )
    (C {<test_expect_success>} {(SQ <'loose objects borrowed from alternate are not missing'>)} 
      {
        (SQ <'\n'> <'\tmkdir another &&\n'> <'\t(\n'> <'\t\tcd another &&\n'> <'\t\tgit init &&\n'> 
          <'\t\techo ../../../.git/objects >.git/objects/info/alternates &&\n'> <'\t\ttest_commit C fileC one &&\n'> <'\t\tgit fsck --no-dangling >../actual 2>&1\n'> <'\t) &&\n'> 
          <'\ttest_cmp empty actual\n'>
        )
      }
    )
    (C {<test_expect_success>} {(SQ <'HEAD is part of refs, valid objects appear valid'>)} 
      {(SQ <'\n'> <'\tgit fsck >actual 2>&1 &&\n'> <'\ttest_cmp empty actual\n'>)}
    )
    (C {<test_expect_success>} {(SQ <'setup: helpers for corruption tests'>)} 
      {
        (SQ <'\n'> <'\tsha1_file() {\n'> <'\t\techo "$*" | sed "s#..#.git/objects/&/#"\n'> <'\t} &&\n'> 
          <'\n'> <'\tremove_object() {\n'> <'\t\tfile=$(sha1_file "$*") &&\n'> <'\t\ttest -e "$file" &&\n'> 
          <'\t\trm -f "$file"\n'> <'\t}\n'>
        )
      }
    )
    (C {<test_expect_success>} {(SQ <'object with bad sha1'>)} 
      {
        (SQ <'\n'> <'\tsha=$(echo blob | git hash-object -w --stdin) &&\n'> 
          <'\told=$(echo $sha | sed "s+^..+&/+") &&\n'> <'\tnew=$(dirname $old)/ffffffffffffffffffffffffffffffffffffff &&\n'> 
          <'\tsha="$(dirname $new)$(basename $new)" &&\n'> <'\tmv .git/objects/$old .git/objects/$new &&\n'> <'\ttest_when_finished "remove_object $sha" &&\n'> 
          <'\tgit update-index --add --cacheinfo 100644 $sha foo &&\n'> <'\ttest_when_finished "git read-tree -u --reset HEAD" &&\n'> <'\ttree=$(git write-tree) &&\n'> 
          <'\ttest_when_finished "remove_object $tree" &&\n'> <'\tcmt=$(echo bogus | git commit-tree $tree) &&\n'> 
          <'\ttest_when_finished "remove_object $cmt" &&\n'> <'\tgit update-ref refs/heads/bogus $cmt &&\n'> 
          <'\ttest_when_finished "git update-ref -d refs/heads/bogus" &&\n'> <'\n'> <'\ttest_must_fail git fsck 2>out &&\n'> <'\tcat out &&\n'> <'\tgrep "$sha.*corrupt" out\n'>
        )
      }
    )
    (C {<test_expect_success>} {(SQ <'branch pointing to non-commit'>)} 
      {
        (SQ <'\n'> <'\tgit rev-parse HEAD^{tree} >.git/refs/heads/invalid &&\n'> 
          <'\ttest_when_finished "git update-ref -d refs/heads/invalid" &&\n'> <'\ttest_must_fail git fsck 2>out &&\n'> <'\tcat out &&\n'> <'\tgrep "not a commit" out\n'>
        )
      }
    )
    (C {<test_expect_success>} {(SQ <'HEAD link pointing at a funny object'>)} 
      {
        (SQ <'\n'> <'\ttest_when_finished "mv .git/SAVED_HEAD .git/HEAD" &&\n'> 
          <'\tmv .git/HEAD .git/SAVED_HEAD &&\n'> <'\techo 0000000000000000000000000000000000000000 >.git/HEAD &&\n'> 
          <'\t# avoid corrupt/broken HEAD from interfering with repo discovery\n'> <'\ttest_must_fail env GIT_DIR=.git git fsck 2>out &&\n'> <'\tcat out &&\n'> 
          <'\tgrep "detached HEAD points" out\n'>
        )
      }
    )
    (C {<test_expect_success>} {(SQ <'HEAD link pointing at a funny place'>)} 
      {
        (SQ <'\n'> <'\ttest_when_finished "mv .git/SAVED_HEAD .git/HEAD" &&\n'> 
          <'\tmv .git/HEAD .git/SAVED_HEAD &&\n'> <'\techo "ref: refs/funny/place" >.git/HEAD &&\n'> 
          <'\t# avoid corrupt/broken HEAD from interfering with repo discovery\n'> <'\ttest_must_fail env GIT_DIR=.git git fsck 2>out &&\n'> <'\tcat out &&\n'> 
          <'\tgrep "HEAD points to something strange" out\n'>
        )
      }
    )
    (C {<test_expect_success>} {(SQ <'email without @ is okay'>)} 
      {
        (SQ <'\n'> <'\tgit cat-file commit HEAD >basis &&\n'> <'\tsed "s/@/AT/" basis >okay &&\n'> 
          <'\tnew=$(git hash-object -t commit -w --stdin <okay) &&\n'> <'\ttest_when_finished "remove_object $new" &&\n'> <'\tgit update-ref refs/heads/bogus "$new" &&\n'> 
          <'\ttest_when_finished "git update-ref -d refs/heads/bogus" &&\n'> <'\tgit fsck 2>out &&\n'> <'\tcat out &&\n'> <'\t! grep "commit $new" out\n'>
        )
      }
    )
    (C {<test_expect_success>} {(SQ <'email with embedded > is not okay'>)} 
      {
        (SQ <'\n'> <'\tgit cat-file commit HEAD >basis &&\n'> 
          <'\tsed "s/@[a-z]/&>/" basis >bad-email &&\n'> <'\tnew=$(git hash-object -t commit -w --stdin <bad-email) &&\n'> 
          <'\ttest_when_finished "remove_object $new" &&\n'> <'\tgit update-ref refs/heads/bogus "$new" &&\n'> 
          <'\ttest_when_finished "git update-ref -d refs/heads/bogus" &&\n'> <'\ttest_must_fail git fsck 2>out &&\n'> <'\tcat out &&\n'> <'\tgrep "error in commit $new" out\n'>
        )
      }
    )
    (C {<test_expect_success>} {(SQ <'missing < email delimiter is reported nicely'>)} 
      {
        (SQ <'\n'> <'\tgit cat-file commit HEAD >basis &&\n'> <'\tsed "s/<//" basis >bad-email-2 &&\n'> 
          <'\tnew=$(git hash-object -t commit -w --stdin <bad-email-2) &&\n'> <'\ttest_when_finished "remove_object $new" &&\n'> <'\tgit update-ref refs/heads/bogus "$new" &&\n'> 
          <'\ttest_when_finished "git update-ref -d refs/heads/bogus" &&\n'> <'\ttest_must_fail git fsck 2>out &&\n'> <'\tcat out &&\n'> 
          <'\tgrep "error in commit $new.* - bad name" out\n'>
        )
      }
    )
    (C {<test_expect_success>} {(SQ <'missing email is reported nicely'>)} 
      {
        (SQ <'\n'> <'\tgit cat-file commit HEAD >basis &&\n'> 
          <'\tsed "s/[a-z]* <[^>]*>//" basis >bad-email-3 &&\n'> <'\tnew=$(git hash-object -t commit -w --stdin <bad-email-3) &&\n'> 
          <'\ttest_when_finished "remove_object $new" &&\n'> <'\tgit update-ref refs/heads/bogus "$new" &&\n'> 
          <'\ttest_when_finished "git update-ref -d refs/heads/bogus" &&\n'> <'\ttest_must_fail git fsck 2>out &&\n'> <'\tcat out &&\n'> 
          <'\tgrep "error in commit $new.* - missing email" out\n'>
        )
      }
    )
    (C {<test_expect_success>} {(SQ <'> in name is reported'>)} 
      {
        (SQ <'\n'> <'\tgit cat-file commit HEAD >basis &&\n'> 
          <'\tsed "s/ </> </" basis >bad-email-4 &&\n'> <'\tnew=$(git hash-object -t commit -w --stdin <bad-email-4) &&\n'> 
          <'\ttest_when_finished "remove_object $new" &&\n'> <'\tgit update-ref refs/heads/bogus "$new" &&\n'> 
          <'\ttest_when_finished "git update-ref -d refs/heads/bogus" &&\n'> <'\ttest_must_fail git fsck 2>out &&\n'> <'\tcat out &&\n'> <'\tgrep "error in commit $new" out\n'>
        )
      }
    )
    (C {<test_expect_success>} {(SQ <'integer overflow in timestamps is reported'>)} 
      {
        (SQ <'\n'> <'\tgit cat-file commit HEAD >basis &&\n'> 
          <'\tsed "s/^\\\\(author .*>\\\\) [0-9]*/\\\\1 18446744073709551617/" \\\n'> <'\t\t<basis >bad-timestamp &&\n'> 
          <'\tnew=$(git hash-object -t commit -w --stdin <bad-timestamp) &&\n'> <'\ttest_when_finished "remove_object $new" &&\n'> <'\tgit update-ref refs/heads/bogus "$new" &&\n'> 
          <'\ttest_when_finished "git update-ref -d refs/heads/bogus" &&\n'> <'\ttest_must_fail git fsck 2>out &&\n'> <'\tcat out &&\n'> 
          <'\tgrep "error in commit $new.*integer overflow" out\n'>
        )
      }
    )
    (C {<test_expect_success>} {(SQ <'commit with NUL in header'>)} 
      {
        (SQ <'\n'> <'\tgit cat-file commit HEAD >basis &&\n'> 
          <'\tsed "s/author ./author Q/" <basis | q_to_nul >commit-NUL-header &&\n'> <'\tnew=$(git hash-object -t commit -w --stdin <commit-NUL-header) &&\n'> 
          <'\ttest_when_finished "remove_object $new" &&\n'> <'\tgit update-ref refs/heads/bogus "$new" &&\n'> 
          <'\ttest_when_finished "git update-ref -d refs/heads/bogus" &&\n'> <'\ttest_must_fail git fsck 2>out &&\n'> <'\tcat out &&\n'> 
          <'\tgrep "error in commit $new.*unterminated header: NUL at offset" out\n'>
        )
      }
    )
    (C {<test_expect_success>} {(SQ <'tree object with duplicate entries'>)} 
      {
        (SQ <'\n'> <'\ttest_when_finished "remove_object \\$T" &&\n'> <'\tT=$(\n'> 
          <'\t\tGIT_INDEX_FILE=test-index &&\n'> <'\t\texport GIT_INDEX_FILE &&\n'> <'\t\trm -f test-index &&\n'> <'\t\t>x &&\n'> <'\t\tgit add x &&\n'> 
          <'\t\tT=$(git write-tree) &&\n'> <'\t\t(\n'> <'\t\t\tgit cat-file tree $T &&\n'> <'\t\t\tgit cat-file tree $T\n'> <'\t\t) |\n'> 
          <'\t\tgit hash-object -w -t tree --stdin\n'> <'\t) &&\n'> <'\ttest_must_fail git fsck 2>out &&\n'> 
          <'\tgrep "error in tree .*contains duplicate file entries" out\n'>
        )
      }
    )
    (C {<test_expect_success>} {(SQ <'unparseable tree object'>)} 
      {
        (SQ <'\n'> <'\ttest_when_finished "git update-ref -d refs/heads/wrong" &&\n'> 
          <'\ttest_when_finished "remove_object \\$tree_sha1" &&\n'> <'\ttest_when_finished "remove_object \\$commit_sha1" &&\n'> 
          <
'\ttree_sha1=$(printf "100644 \\0twenty-bytes-of-junk" | git hash-object -t tree --stdin -w --literally) &&\n'
          > <'\tcommit_sha1=$(git commit-tree $tree_sha1) &&\n'> 
          <'\tgit update-ref refs/heads/wrong $commit_sha1 &&\n'> <'\ttest_must_fail git fsck 2>out &&\n'> 
          <'\ttest_i18ngrep "error: empty filename in tree entry" out &&\n'> <'\ttest_i18ngrep "$tree_sha1" out &&\n'> 
          <'\ttest_i18ngrep ! "fatal: empty filename in tree entry" out\n'>
        )
      }
    )
    (C {<test_expect_success>} {(SQ <'tag pointing to nonexistent'>)} 
      {
        (SQ <'\n'> <'\tcat >invalid-tag <<-\\EOF &&\n'> 
          <'\tobject ffffffffffffffffffffffffffffffffffffffff\n'> <'\ttype commit\n'> <'\ttag invalid\n'> <'\ttagger T A Gger <tagger@example.com> 1234567890 -0000\n'> 
          <'\n'> <'\tThis is an invalid tag.\n'> <'\tEOF\n'> <'\n'> 
          <'\ttag=$(git hash-object -t tag -w --stdin <invalid-tag) &&\n'> <'\ttest_when_finished "remove_object $tag" &&\n'> <'\techo $tag >.git/refs/tags/invalid &&\n'> 
          <'\ttest_when_finished "git update-ref -d refs/tags/invalid" &&\n'> <'\ttest_must_fail git fsck --tags >out &&\n'> <'\tcat out &&\n'> <'\tgrep "broken link" out\n'>
        )
      }
    )
    (C {<test_expect_success>} {(SQ <'tag pointing to something else than its type'>)} 
      {
        (SQ <'\n'> <'\tsha=$(echo blob | git hash-object -w --stdin) &&\n'> 
          <'\ttest_when_finished "remove_object $sha" &&\n'> <'\tcat >wrong-tag <<-EOF &&\n'> <'\tobject $sha\n'> <'\ttype commit\n'> <'\ttag wrong\n'> 
          <'\ttagger T A Gger <tagger@example.com> 1234567890 -0000\n'> <'\n'> <'\tThis is an invalid tag.\n'> <'\tEOF\n'> <'\n'> 
          <'\ttag=$(git hash-object -t tag -w --stdin <wrong-tag) &&\n'> <'\ttest_when_finished "remove_object $tag" &&\n'> <'\techo $tag >.git/refs/tags/wrong &&\n'> 
          <'\ttest_when_finished "git update-ref -d refs/tags/wrong" &&\n'> <'\ttest_must_fail git fsck --tags\n'>
        )
      }
    )
    (C {<test_expect_success>} {(SQ <'tag with incorrect tag name & missing tagger'>)} 
      {
        (SQ <'\n'> <'\tsha=$(git rev-parse HEAD) &&\n'> <'\tcat >wrong-tag <<-EOF &&\n'> 
          <'\tobject $sha\n'> <'\ttype commit\n'> <'\ttag wrong name format\n'> <'\n'> <'\tThis is an invalid tag.\n'> <'\tEOF\n'> 
          <'\n'> <'\ttag=$(git hash-object -t tag -w --stdin <wrong-tag) &&\n'> 
          <'\ttest_when_finished "remove_object $tag" &&\n'> <'\techo $tag >.git/refs/tags/wrong &&\n'> 
          <'\ttest_when_finished "git update-ref -d refs/tags/wrong" &&\n'> <'\tgit fsck --tags 2>out &&\n'> <'\n'> <'\tcat >expect <<-EOF &&\n'> 
          <'\twarning in tag $tag: badTagName: invalid '>
        ) (word_part.EscapedLiteral token:<Id.Lit_EscapedChar '\\\''>) (SQ <tag>) 
        (word_part.EscapedLiteral token:<Id.Lit_EscapedChar '\\\''>) 
        (SQ <' name: wrong name format\n'> 
          <'\twarning in tag $tag: missingTaggerEntry: invalid format - expected '>
        ) (word_part.EscapedLiteral token:<Id.Lit_EscapedChar '\\\''>) (SQ <tagger>) 
        (word_part.EscapedLiteral token:<Id.Lit_EscapedChar '\\\''>) (SQ <' line\n'> <'\tEOF\n'> <'\ttest_cmp expect out\n'>)
      }
    )
    (C {<test_expect_success>} {(SQ <'tag with bad tagger'>)} 
      {
        (SQ <'\n'> <'\tsha=$(git rev-parse HEAD) &&\n'> <'\tcat >wrong-tag <<-EOF &&\n'> 
          <'\tobject $sha\n'> <'\ttype commit\n'> <'\ttag not-quite-wrong\n'> <'\ttagger Bad Tagger Name\n'> <'\n'> 
          <'\tThis is an invalid tag.\n'> <'\tEOF\n'> <'\n'> <'\ttag=$(git hash-object --literally -t tag -w --stdin <wrong-tag) &&\n'> 
          <'\ttest_when_finished "remove_object $tag" &&\n'> <'\techo $tag >.git/refs/tags/wrong &&\n'> 
          <'\ttest_when_finished "git update-ref -d refs/tags/wrong" &&\n'> <'\ttest_must_fail git fsck --tags 2>out &&\n'> 
          <'\tgrep "error in tag .*: invalid author/committer" out\n'>
        )
      }
    )
    (C {<test_expect_success>} {(SQ <'tag with NUL in header'>)} 
      {
        (SQ <'\n'> <'\tsha=$(git rev-parse HEAD) &&\n'> <'\tq_to_nul >tag-NUL-header <<-EOF &&\n'> 
          <'\tobject $sha\n'> <'\ttype commit\n'> <'\ttag contains-Q-in-header\n'> 
          <'\ttagger T A Gger <tagger@example.com> 1234567890 -0000\n'> <'\n'> <'\tThis is an invalid tag.\n'> <'\tEOF\n'> <'\n'> 
          <'\ttag=$(git hash-object --literally -t tag -w --stdin <tag-NUL-header) &&\n'> <'\ttest_when_finished "remove_object $tag" &&\n'> <'\techo $tag >.git/refs/tags/wrong &&\n'> 
          <'\ttest_when_finished "git update-ref -d refs/tags/wrong" &&\n'> <'\ttest_must_fail git fsck --tags 2>out &&\n'> <'\tcat out &&\n'> 
          <'\tgrep "error in tag $tag.*unterminated header: NUL at offset" out\n'>
        )
      }
    )
    (C {<test_expect_success>} {(SQ <'cleaned up'>)} 
      {(SQ <'\n'> <'\tgit fsck >actual 2>&1 &&\n'> <'\ttest_cmp empty actual\n'>)}
    )
    (C {<test_expect_success>} {(SQ <'rev-list --verify-objects'>)} 
      {
        (SQ <'\n'> <'\tgit rev-list --verify-objects --all >/dev/null 2>out &&\n'> 
          <'\ttest_cmp empty out\n'>
        )
      }
    )
    (C {<test_expect_success>} {(SQ <'rev-list --verify-objects with bad sha1'>)} 
      {
        (SQ <'\n'> <'\tsha=$(echo blob | git hash-object -w --stdin) &&\n'> 
          <'\told=$(echo $sha | sed "s+^..+&/+") &&\n'> <'\tnew=$(dirname $old)/ffffffffffffffffffffffffffffffffffffff &&\n'> 
          <'\tsha="$(dirname $new)$(basename $new)" &&\n'> <'\tmv .git/objects/$old .git/objects/$new &&\n'> <'\ttest_when_finished "remove_object $sha" &&\n'> 
          <'\tgit update-index --add --cacheinfo 100644 $sha foo &&\n'> <'\ttest_when_finished "git read-tree -u --reset HEAD" &&\n'> <'\ttree=$(git write-tree) &&\n'> 
          <'\ttest_when_finished "remove_object $tree" &&\n'> <'\tcmt=$(echo bogus | git commit-tree $tree) &&\n'> 
          <'\ttest_when_finished "remove_object $cmt" &&\n'> <'\tgit update-ref refs/heads/bogus $cmt &&\n'> 
          <'\ttest_when_finished "git update-ref -d refs/heads/bogus" &&\n'> <'\n'> <'\ttest_might_fail git rev-list --verify-objects refs/heads/bogus >/dev/null 2>out &&\n'> 
          <'\tcat out &&\n'> <'\tgrep -q "error: sha1 mismatch 63ffffffffffffffffffffffffffffffffffffff" out\n'>
        )
      }
    )
    (C {<test_expect_success>} {(SQ <'force fsck to ignore double author'>)} 
      {
        (SQ <'\n'> <'\tgit cat-file commit HEAD >basis &&\n'> 
          <'\tsed "s/^author .*/&,&/" <basis | tr , \\\\n >multiple-authors &&\n'> <'\tnew=$(git hash-object -t commit -w --stdin <multiple-authors) &&\n'> 
          <'\ttest_when_finished "remove_object $new" &&\n'> <'\tgit update-ref refs/heads/bogus "$new" &&\n'> 
          <'\ttest_when_finished "git update-ref -d refs/heads/bogus" &&\n'> <'\ttest_must_fail git fsck &&\n'> <'\tgit -c fsck.multipleAuthors=ignore fsck\n'>
        )
      }
    )
    (command.ShAssignment
      pairs: [
        (assign_pair
          lhs: (sh_lhs_expr.Name name:_bz)
          op: assign_op.Equal
          rhs: {(SQ <'\\0'>)}
          spids: [602]
        )
      ]
    )
    (command.ShAssignment
      pairs: [
        (assign_pair
          lhs: (sh_lhs_expr.Name name:_bz5)
          op: assign_op.Equal
          rhs: 
            {
              (DQ ($ Id.VSub_DollarName '$_bz') ($ Id.VSub_DollarName '$_bz') 
                ($ Id.VSub_DollarName '$_bz') ($ Id.VSub_DollarName '$_bz') ($ Id.VSub_DollarName '$_bz')
              )
            }
          spids: [607]
        )
      ]
    )
    (command.ShAssignment
      pairs: [
        (assign_pair
          lhs: (sh_lhs_expr.Name name:_bz20)
          op: assign_op.Equal
          rhs: 
            {
              (DQ ($ Id.VSub_DollarName '$_bz5') ($ Id.VSub_DollarName '$_bz5') 
                ($ Id.VSub_DollarName '$_bz5') ($ Id.VSub_DollarName '$_bz5')
              )
            }
          spids: [616]
        )
      ]
    )
    (C {<test_expect_success>} {(SQ <'fsck notices blob entry pointing to null sha1'>)} 
      {
        (SQ <'\n'> <'\t(git init null-blob &&\n'> <'\t cd null-blob &&\n'> 
          <'\t sha=$(printf "100644 file$_bz$_bz20" |\n'> <'\t       git hash-object -w --stdin -t tree) &&\n'> <'\t  git fsck 2>out &&\n'> <'\t  cat out &&\n'> 
          <'\t  grep "warning.*null sha1" out\n'> <'\t)\n'>
        )
      }
    )
    (C {<test_expect_success>} {(SQ <'fsck notices submodule entry pointing to null sha1'>)} 
      {
        (SQ <'\n'> <'\t(git init null-commit &&\n'> <'\t cd null-commit &&\n'> 
          <'\t sha=$(printf "160000 submodule$_bz$_bz20" |\n'> <'\t       git hash-object -w --stdin -t tree) &&\n'> <'\t  git fsck 2>out &&\n'> <'\t  cat out &&\n'> 
          <'\t  grep "warning.*null sha1" out\n'> <'\t)\n'>
        )
      }
    )
    (command.WhileUntil
      keyword: <Id.KW_While while>
      cond: [
        (command.Sentence
          child: (C {<read>} {<name>} {<path>} {<pretty>})
          terminator: <Id.Op_Semi _>
        )
      ]
      body: 
        (command.DoGroup
          children: [
            (command.WhileUntil
              keyword: <Id.KW_While while>
              cond: [(command.Sentence child:(C {<read>} {<mode>} {<type>}) terminator:<Id.Op_Semi _>)]
              body: 
                (command.DoGroup
                  children: [
                    (C {<Id.Lit_Colon ':'>} 
                      {
                        (braced_var_sub
                          token: <Id.VSub_Name pretty>
                          suffix_op: 
                            (suffix_op.Unary
                              op_id: Id.VTest_ColonEquals
                              arg_word: {($ Id.VSub_DollarName '$path')}
                            )
                        )
                      }
                    )
                    (C {<test_expect_success>} 
                      {
                        (DQ <'fsck notices '> ($ Id.VSub_DollarName '$pretty') <' as '> 
                          ($ Id.VSub_DollarName '$type')
                        )
                      } 
                      {
                        (SQ <'\n'> <'\t\t(\n'> <'\t\t\tgit init $name-$type &&\n'> 
                          <'\t\t\tcd $name-$type &&\n'> <'\t\t\techo content >file &&\n'> <'\t\t\tgit add file &&\n'> <'\t\t\tgit commit -m base &&\n'> 
                          <'\t\t\tblob=$(git rev-parse :file) &&\n'> <'\t\t\ttree=$(git rev-parse HEAD^{tree}) &&\n'> <'\t\t\tvalue=$(eval "echo \\$$type") &&\n'> 
                          <'\t\t\tprintf "$mode $type %s\\t%s" "$value" "$path" >bad &&\n'> <'\t\t\tbad_tree=$(git mktree <bad) &&\n'> <'\t\t\tgit fsck 2>out &&\n'> <'\t\t\tcat out &&\n'> 
                          <'\t\t\tgrep "warning.*tree $bad_tree" out\n'> <'\t\t)'>
                        )
                      }
                    )
                  ]
                )
              redirects: [
                (redir
                  op: <Id.Redir_DLessDash '<<-'>
                  loc: (redir_loc.Fd fd:0)
                  arg: 
                    (redir_param.MultiLine
                      here_begin: {(word_part.EscapedLiteral token:<Id.Lit_EscapedChar '\\E'>) <OF>}
                      here_end_span_id: 735
                      stdin_parts: [<'100644 blob\n'> <'040000 tree\n'>]
                    )
                )
              ]
            )
          ]
        )
      redirects: [
        (redir
          op: <Id.Redir_DLessDash '<<-'>
          loc: (redir_loc.Fd fd:0)
          arg: 
            (redir_param.MultiLine
              here_begin: {<EOF>}
              here_end_span_id: 765
              stdin_parts: [
                <'dot .\n'>
                <'dotdot ..\n'>
                <'dotgit .git\n'>
                <'dotgit-case .GIT\n'>
                <'dotgit-unicode .gI'>
                (${ Id.VSub_Name u200c)
                <'T .gI{u200c}T\n'>
                <'dotgit-case2 .Git\n'>
                <'git-tilde1 git~1\n'>
                <'dotgitdot .git.\n'>
                <'dot-backslash-case .'>
                (word_part.EscapedLiteral token:<Id.Lit_EscapedChar '\\\\'>)
                (word_part.EscapedLiteral token:<Id.Lit_EscapedChar '\\\\'>)
                <.GIT>
                (word_part.EscapedLiteral token:<Id.Lit_EscapedChar '\\\\'>)
                (word_part.EscapedLiteral token:<Id.Lit_EscapedChar '\\\\'>)
                <'foobar\n'>
                <'dotgit-case-backslash .git'>
                (word_part.EscapedLiteral token:<Id.Lit_EscapedChar '\\\\'>)
                (word_part.EscapedLiteral token:<Id.Lit_EscapedChar '\\\\'>)
                <'foobar\n'>
              ]
            )
        )
      ]
    )
    (C {<test_expect_success>} {(SQ <'fsck allows .Ňit'>)} 
      {
        (SQ <'\n'> <'\t(\n'> <'\t\tgit init not-dotgit &&\n'> <'\t\tcd not-dotgit &&\n'> 
          <'\t\techo content >file &&\n'> <'\t\tgit add file &&\n'> <'\t\tgit commit -m base &&\n'> <'\t\tblob=$(git rev-parse :file) &&\n'> 
          <'\t\tprintf "100644 blob $blob\\t.\\\\305\\\\207it" >tree &&\n'> <'\t\ttree=$(git mktree <tree) &&\n'> <'\t\tgit fsck 2>err &&\n'> <'\t\ttest_line_count = 0 err\n'> 
          <'\t)\n'>
        )
      }
    )
    (C {<test_expect_success>} {(SQ <'NUL in commit'>)} 
      {
        (SQ <'\n'> <'\trm -fr nul-in-commit &&\n'> <'\tgit init nul-in-commit &&\n'> <'\t(\n'> 
          <'\t\tcd nul-in-commit &&\n'> <'\t\tgit commit --allow-empty -m "initial commitQNUL after message" &&\n'> 
          <'\t\tgit cat-file commit HEAD >original &&\n'> <'\t\tq_to_nul <original >munged &&\n'> 
          <'\t\tgit hash-object -w -t commit --stdin <munged >name &&\n'> <'\t\tgit branch bad $(cat name) &&\n'> <'\n'> 
          <'\t\ttest_must_fail git -c fsck.nulInCommit=error fsck 2>warn.1 &&\n'> <'\t\tgrep nulInCommit warn.1 &&\n'> <'\t\tgit fsck 2>warn.2 &&\n'> <'\t\tgrep nulInCommit warn.2\n'> 
          <'\t)\n'>
        )
      }
    )
    (command.ShFunction
      name: create_repo_missing
      body: 
        (BraceGroup
          children: [
            (command.AndOr
              ops: [Id.Op_DAmp Id.Op_DAmp]
              children: [
                (C {<rm>} {<-rf>} {<missing>})
                (C {<git>} {<init>} {<missing>})
                (command.Subshell
                  child: 
                    (command.AndOr
                      ops: [
                        Id.Op_DAmp
                        Id.Op_DAmp
                        Id.Op_DAmp
                        Id.Op_DAmp
                        Id.Op_DAmp
                        Id.Op_DAmp
                        Id.Op_DAmp
                        Id.Op_DAmp
                        Id.Op_DAmp
                        Id.Op_DAmp
                      ]
                      children: [
                        (C {<cd>} {<missing>})
                        (C {<git>} {<commit>} {<-m>} {<one>} {<--allow-empty>})
                        (C {<mkdir>} {<subdir>})
                        (command.Simple
                          words: [{<echo>} {<content>}]
                          redirects: [
                            (redir
                              op: <Id.Redir_Great '>'>
                              loc: (redir_loc.Fd fd:1)
                              arg: {<'subdir/file'>}
                            )
                          ]
                          do_fork: T
                        )
                        (C {<git>} {<add>} {<'subdir/file'>})
                        (C {<git>} {<commit>} {<-m>} {<two>})
                        (command.ShAssignment
                          pairs: [
                            (assign_pair
                              lhs: (sh_lhs_expr.Name name:unrelated)
                              op: assign_op.Equal
                              rhs: 
                                {
                                  (command_sub
                                    left_token: <Id.Left_DollarParen '$('>
                                    child: 
                                      (command.Pipeline
                                        children: [
                                          (C {<echo>} {<unrelated>})
                                          (C {<git>} {<hash-object>} {<--stdin>} {<-w>})
                                        ]
                                        negated: F
                                      )
                                  )
                                }
                              spids: [911]
                            )
                          ]
                        )
                        (C {<git>} {<tag>} {<-m>} {<foo>} {<tag>} {($ Id.VSub_DollarName '$unrelated')})
                        (command.ShAssignment
                          pairs: [
                            (assign_pair
                              lhs: (sh_lhs_expr.Name name:sha1)
                              op: assign_op.Equal
                              rhs: 
                                {
                                  (command_sub
                                    left_token: <Id.Left_DollarParen '$('>
                                    child: 
                                      (C {<git>} {<rev-parse>} {<--verify>} {(DQ ($ Id.VSub_Number '$1'))})
                                  )
                                }
                              spids: [946]
                            )
                          ]
                        )
                        (command.ShAssignment
                          pairs: [
                            (assign_pair
                              lhs: (sh_lhs_expr.Name name:path)
                              op: assign_op.Equal
                              rhs: 
                                {
                                  (command_sub
                                    left_token: <Id.Left_DollarParen '$('>
                                    child: 
                                      (command.Pipeline
                                        children: [
                                          (C {<echo>} {($ Id.VSub_DollarName '$sha1')})
                                          (C {<sed>} {(SQ <'s|..|&/|'>)})
                                        ]
                                        negated: F
                                      )
                                  )
                                }
                              spids: [962]
                            )
                          ]
                        )
                        (C {<rm>} {<'.git/objects/'> ($ Id.VSub_DollarName '$path')})
                      ]
                    )
                )
              ]
            )
          ]
        )
    )
    (C {<test_expect_success>} {(SQ <'fsck notices missing blob'>)} 
      {
        (SQ <'\n'> <'\tcreate_repo_missing HEAD:subdir/file &&\n'> 
          <'\ttest_must_fail git -C missing fsck\n'>
        )
      }
    )
    (C {<test_expect_success>} {(SQ <'fsck notices missing subtree'>)} 
      {
        (SQ <'\n'> <'\tcreate_repo_missing HEAD:subdir &&\n'> 
          <'\ttest_must_fail git -C missing fsck\n'>
        )
      }
    )
    (C {<test_expect_success>} {(SQ <'fsck notices missing root tree'>)} 
      {
        (SQ <'\n'> <'\tcreate_repo_missing HEAD^{tree} &&\n'> 
          <'\ttest_must_fail git -C missing fsck\n'>
        )
      }
    )
    (C {<test_expect_success>} {(SQ <'fsck notices missing parent'>)} 
      {(SQ <'\n'> <'\tcreate_repo_missing HEAD^ &&\n'> <'\ttest_must_fail git -C missing fsck\n'>)}
    )
    (C {<test_expect_success>} {(SQ <'fsck notices missing tagged object'>)} 
      {
        (SQ <'\n'> <'\tcreate_repo_missing tag^{blob} &&\n'> <'\ttest_must_fail git -C missing fsck\n'>)
      }
    )
    (C {<test_expect_success>} {(SQ <'fsck notices ref pointing to missing commit'>)} 
      {(SQ <'\n'> <'\tcreate_repo_missing HEAD &&\n'> <'\ttest_must_fail git -C missing fsck\n'>)}
    )
    (C {<test_expect_success>} {(SQ <'fsck notices ref pointing to missing tag'>)} 
      {(SQ <'\n'> <'\tcreate_repo_missing tag &&\n'> <'\ttest_must_fail git -C missing fsck\n'>)}
    )
    (C {<test_expect_success>} {(SQ <'fsck --connectivity-only'>)} 
      {
        (SQ <'\n'> <'\trm -rf connectivity-only &&\n'> <'\tgit init connectivity-only &&\n'> <'\t(\n'> 
          <'\t\tcd connectivity-only &&\n'> <'\t\ttouch empty &&\n'> <'\t\tgit add empty &&\n'> <'\t\ttest_commit empty &&\n'> 
          <'\t\tempty=.git/objects/e6/9de29bb2d1d6434b8b29ae775ad8c2e48c5391 &&\n'> <'\t\trm -f $empty &&\n'> <'\t\techo invalid >$empty &&\n'> 
          <'\t\ttest_must_fail git fsck --strict &&\n'> <'\t\tgit fsck --strict --connectivity-only &&\n'> <'\t\ttree=$(git rev-parse HEAD:) &&\n'> 
          <'\t\tsuffix=${tree#??} &&\n'> <'\t\ttree=.git/objects/${tree%$suffix}/$suffix &&\n'> <'\t\trm -f $tree &&\n'> 
          <'\t\techo invalid >$tree &&\n'> <'\t\ttest_must_fail git fsck --strict --connectivity-only\n'> <'\t)\n'>
        )
      }
    )
    (command.ShFunction
      name: remove_loose_object
      body: 
        (BraceGroup
          children: [
            (command.AndOr
              ops: [Id.Op_DAmp Id.Op_DAmp Id.Op_DAmp]
              children: [
                (command.ShAssignment
                  pairs: [
                    (assign_pair
                      lhs: (sh_lhs_expr.Name name:sha1)
                      op: assign_op.Equal
                      rhs: 
                        {
                          (DQ 
                            (command_sub
                              left_token: <Id.Left_DollarParen '$('>
                              child: (C {<git>} {<rev-parse>} {(DQ ($ Id.VSub_Number '$1'))})
                            )
                          )
                        }
                      spids: [1120]
                    )
                  ]
                )
                (command.ShAssignment
                  pairs: [
                    (assign_pair
                      lhs: (sh_lhs_expr.Name name:remainder)
                      op: assign_op.Equal
                      rhs: 
                        {
                          (braced_var_sub
                            token: <Id.VSub_Name sha1>
                            suffix_op: (suffix_op.Unary op_id:Id.VOp1_Pound arg_word:{<'??'>})
                          )
                        }
                      spids: [1136]
                    )
                  ]
                )
                (command.ShAssignment
                  pairs: [
                    (assign_pair
                      lhs: (sh_lhs_expr.Name name:firsttwo)
                      op: assign_op.Equal
                      rhs: 
                        {
                          (braced_var_sub
                            token: <Id.VSub_Name sha1>
                            suffix_op: 
                              (suffix_op.Unary
                                op_id: Id.VOp1_Percent
                                arg_word: {($ Id.VSub_DollarName '$remainder')}
                              )
                          )
                        }
                      spids: [1146]
                    )
                  ]
                )
                (C {<rm>} 
                  {<'.git/objects/'> ($ Id.VSub_DollarName '$firsttwo') <'/'> 
                    ($ Id.VSub_DollarName '$remainder')
                  }
                )
              ]
            )
          ]
        )
    )
    (C {<test_expect_success>} {(SQ <'fsck --name-objects'>)} 
      {
        (SQ <'\n'> <'\trm -rf name-objects &&\n'> <'\tgit init name-objects &&\n'> <'\t(\n'> 
          <'\t\tcd name-objects &&\n'> <'\t\ttest_commit julius caesar.t &&\n'> <'\t\ttest_commit augustus &&\n'> 
          <'\t\ttest_commit caesar &&\n'> <'\t\tremove_loose_object $(git rev-parse julius:caesar.t) &&\n'> 
          <'\t\ttest_must_fail git fsck --name-objects >out &&\n'> <'\t\ttree=$(git rev-parse --verify julius:) &&\n'> 
          <'\t\tgrep "$tree (\\(refs/heads/master\\|HEAD\\)@{[0-9]*}:" out\n'> <'\t)\n'>
        )
      }
    )
    (C {<test_done>})
  ]
)