(command.CommandList
  children: [
    (command.ShAssignment
      pairs: [
        (assign_pair
          lhs: (sh_lhs_expr.Name name:test_description)
          op: assign_op.Equal
          rhs: {(SQ <'skip-worktree bit test'>)}
          spids: [13]
        )
      ]
    )
    (C {<.>} {<'./test-lib.sh'>})
    (command.Simple
      words: [{<cat>}]
      redirects: [
        (redir op:<Id.Redir_Great '>'> loc:(redir_loc.Fd fd:1) arg:{<expect.full>})
        (redir
          op: <Id.Redir_DLess '<<'>
          loc: (redir_loc.Fd fd:0)
          arg: 
            (redir_param.MultiLine
              here_begin: {<EOF>}
              here_end_span_id: 38
              stdin_parts: [<'H 1\n'> <'H 2\n'> <'H init.t\n'> <'H sub/1\n'> <'H sub/2\n'>]
            )
        )
      ]
      do_fork: T
    )
    (command.Simple
      words: [{<cat>}]
      redirects: [
        (redir op:<Id.Redir_Great '>'> loc:(redir_loc.Fd fd:1) arg:{<expect.skip>})
        (redir
          op: <Id.Redir_DLess '<<'>
          loc: (redir_loc.Fd fd:0)
          arg: 
            (redir_param.MultiLine
              here_begin: {<EOF>}
              here_end_span_id: 54
              stdin_parts: [<'S 1\n'> <'H 2\n'> <'H init.t\n'> <'S sub/1\n'> <'H sub/2\n'>]
            )
        )
      ]
      do_fork: T
    )
    (command.ShFunction
      name: setup_absent
      body: 
        (BraceGroup
          children: [
            (command.AndOr
              ops: [Id.Op_DAmp]
              children: [(C {<test>} {<-f>} {<1>}) (C {<rm>} {<1>})]
            )
            (command.AndOr
              ops: [Id.Op_DAmp Id.Op_DAmp]
              children: [
                (C {<git>} {<update-index>} {<--remove>} {<1>})
                (C {<git>} {<update-index>} {<--add>} {<--cacheinfo>} {<100644>} 
                  {($ Id.VSub_DollarName '$EMPTY_BLOB')} {<1>}
                )
                (C {<git>} {<update-index>} {<--skip-worktree>} {<1>})
              ]
            )
          ]
        )
    )
    (command.ShFunction
      name: test_absent
      body: 
        (BraceGroup
          children: [
            (command.AndOr
              ops: [Id.Op_DAmp Id.Op_DAmp Id.Op_DAmp]
              children: [
                (command.Simple
                  words: [{<echo>} {(DQ <'100644 '> ($ Id.VSub_DollarName '$EMPTY_BLOB') <' 0\t1'>)}]
                  redirects: [(redir op:<Id.Redir_Great '>'> loc:(redir_loc.Fd fd:1) arg:{<expected>})]
                  do_fork: T
                )
                (command.Simple
                  words: [{<git>} {<ls-files>} {<--stage>} {<1>}]
                  redirects: [(redir op:<Id.Redir_Great '>'> loc:(redir_loc.Fd fd:1) arg:{<result>})]
                  do_fork: T
                )
                (C {<test_cmp>} {<expected>} {<result>})
                (C {<test>} {<Id.KW_Bang '!'>} {<-f>} {<1>})
              ]
            )
          ]
        )
    )
    (command.ShFunction
      name: setup_dirty
      body: 
        (BraceGroup
          children: [
            (command.AndOr
              ops: [Id.Op_DAmp Id.Op_DAmp Id.Op_DAmp]
              children: [
                (C {<git>} {<update-index>} {<--force-remove>} {<1>})
                (command.Simple
                  words: [{<echo>} {<dirty>}]
                  redirects: [(redir op:<Id.Redir_Great '>'> loc:(redir_loc.Fd fd:1) arg:{<1>})]
                  do_fork: T
                )
                (C {<git>} {<update-index>} {<--add>} {<--cacheinfo>} {<100644>} 
                  {($ Id.VSub_DollarName '$EMPTY_BLOB')} {<1>}
                )
                (C {<git>} {<update-index>} {<--skip-worktree>} {<1>})
              ]
            )
          ]
        )
    )
    (command.ShFunction
      name: test_dirty
      body: 
        (BraceGroup
          children: [
            (command.AndOr
              ops: [Id.Op_DAmp Id.Op_DAmp Id.Op_DAmp]
              children: [
                (command.Simple
                  words: [{<echo>} {(DQ <'100644 '> ($ Id.VSub_DollarName '$EMPTY_BLOB') <' 0\t1'>)}]
                  redirects: [(redir op:<Id.Redir_Great '>'> loc:(redir_loc.Fd fd:1) arg:{<expected>})]
                  do_fork: T
                )
                (command.Simple
                  words: [{<git>} {<ls-files>} {<--stage>} {<1>}]
                  redirects: [(redir op:<Id.Redir_Great '>'> loc:(redir_loc.Fd fd:1) arg:{<result>})]
                  do_fork: T
                )
                (C {<test_cmp>} {<expected>} {<result>})
                (command.Simple
                  words: [{<echo>} {<dirty>}]
                  redirects: [(redir op:<Id.Redir_Great '>'> loc:(redir_loc.Fd fd:1) arg:{<expected>})]
                  do_fork: T
                )
              ]
            )
            (C {<test_cmp>} {<expected>} {<1>})
          ]
        )
    )
    (C {<test_expect_success>} {(SQ <setup>)} 
      {
        (SQ <'\n'> <'\ttest_commit init &&\n'> <'\tmkdir sub &&\n'> <'\ttouch ./1 ./2 sub/1 sub/2 &&\n'> 
          <'\tgit add 1 2 sub/1 sub/2 &&\n'> <'\tgit update-index --skip-worktree 1 sub/1 &&\n'> <'\tgit ls-files -t > result &&\n'> 
          <'\ttest_cmp expect.skip result\n'>
        )
      }
    )
    (C {<test_expect_success>} {(SQ <update-index>)} 
      {(SQ <'\n'> <'\tsetup_absent &&\n'> <'\tgit update-index 1 &&\n'> <'\ttest_absent\n'>)}
    )
    (C {<test_expect_success>} {(SQ <update-index>)} 
      {(SQ <'\n'> <'\tsetup_dirty &&\n'> <'\tgit update-index 1 &&\n'> <'\ttest_dirty\n'>)}
    )
    (C {<test_expect_success>} {(SQ <'update-index --remove'>)} 
      {
        (SQ <'\n'> <'\tsetup_absent &&\n'> <'\tgit update-index --remove 1 &&\n'> 
          <'\ttest -z "$(git ls-files 1)" &&\n'> <'\ttest ! -f 1\n'>
        )
      }
    )
    (C {<test_expect_success>} {(SQ <'update-index --remove'>)} 
      {
        (SQ <'\n'> <'\tsetup_dirty &&\n'> <'\tgit update-index --remove 1 &&\n'> 
          <'\ttest -z "$(git ls-files 1)" &&\n'> <'\techo dirty > expected &&\n'> <'\ttest_cmp expected 1\n'>
        )
      }
    )
    (C {<test_expect_success>} {(SQ <'ls-files --deleted'>)} 
      {(SQ <'\n'> <'\tsetup_absent &&\n'> <'\ttest -z "$(git ls-files -d)"\n'>)}
    )
    (C {<test_expect_success>} {(SQ <'ls-files --deleted'>)} 
      {(SQ <'\n'> <'\tsetup_dirty &&\n'> <'\ttest -z "$(git ls-files -d)"\n'>)}
    )
    (C {<test_expect_success>} {(SQ <'ls-files --modified'>)} 
      {(SQ <'\n'> <'\tsetup_absent &&\n'> <'\ttest -z "$(git ls-files -m)"\n'>)}
    )
    (C {<test_expect_success>} {(SQ <'ls-files --modified'>)} 
      {(SQ <'\n'> <'\tsetup_dirty &&\n'> <'\ttest -z "$(git ls-files -m)"\n'>)}
    )
    (C {<test_expect_success>} {(SQ <'grep with skip-worktree file'>)} 
      {
        (SQ <'\n'> <'\tgit update-index --no-skip-worktree 1 &&\n'> <'\techo test > 1 &&\n'> 
          <'\tgit update-index 1 &&\n'> <'\tgit update-index --skip-worktree 1 &&\n'> <'\trm 1 &&\n'> 
          <'\ttest "$(git grep --no-ext-grep test)" = "1:test"\n'>
        )
      }
    )
    (command.Simple
      words: [
        {<echo>}
        {
          (DQ <':000000 100644 '> ($ Id.VSub_DollarName '$_z40') <' '> 
            ($ Id.VSub_DollarName '$EMPTY_BLOB') <' A\t1'>
          )
        }
      ]
      redirects: [(redir op:<Id.Redir_Great '>'> loc:(redir_loc.Fd fd:1) arg:{<expected>})]
      do_fork: T
    )
    (C {<test_expect_success>} {(SQ <'diff-index does not examine skip-worktree absent entries'>)} 
      {
        (SQ <'\n'> <'\tsetup_absent &&\n'> <'\tgit diff-index HEAD -- 1 > result &&\n'> 
          <'\ttest_cmp expected result\n'>
        )
      }
    )
    (C {<test_expect_success>} {(SQ <'diff-index does not examine skip-worktree dirty entries'>)} 
      {
        (SQ <'\n'> <'\tsetup_dirty &&\n'> <'\tgit diff-index HEAD -- 1 > result &&\n'> 
          <'\ttest_cmp expected result\n'>
        )
      }
    )
    (C {<test_expect_success>} {(SQ <'diff-files does not examine skip-worktree absent entries'>)} 
      {(SQ <'\n'> <'\tsetup_absent &&\n'> <'\ttest -z "$(git diff-files -- one)"\n'>)}
    )
    (C {<test_expect_success>} {(SQ <'diff-files does not examine skip-worktree dirty entries'>)} 
      {(SQ <'\n'> <'\tsetup_dirty &&\n'> <'\ttest -z "$(git diff-files -- one)"\n'>)}
    )
    (C {<test_expect_success>} {(SQ <'git-rm succeeds on skip-worktree absent entries'>)} 
      {(SQ <'\n'> <'\tsetup_absent &&\n'> <'\tgit rm 1\n'>)}
    )
    (C {<test_expect_success>} {(SQ <'commit on skip-worktree absent entries'>)} 
      {
        (SQ <'\n'> <'\tgit reset &&\n'> <'\tsetup_absent &&\n'> 
          <'\ttest_must_fail git commit -m null 1\n'>
        )
      }
    )
    (C {<test_expect_success>} {(SQ <'commit on skip-worktree dirty entries'>)} 
      {
        (SQ <'\n'> <'\tgit reset &&\n'> <'\tsetup_dirty &&\n'> 
          <'\ttest_must_fail git commit -m null 1\n'>
        )
      }
    )
    (C {<test_done>})
  ]
)