(command.CommandList
  children: [
    (command.Assignment
      keyword: Assign_None
      pairs: [
        (assign_pair
          lhs: (lhs_expr.LhsName name:test_description spids:[21])
          op: Equal
          rhs: {(SQ <'git read-tree --prefix test.\n'>)}
          spids: [21]
        )
      ]
      spids: [21]
    )
    (C {(.)} {(./test-lib.sh)})
    (C {(test_expect_success)} {(setup)} 
      {
        (SQ <'\n'> <'\techo hello >one &&\n'> <'\tgit update-index --add one &&\n'> 
          <'\ttree=$(git write-tree) &&\n'> <'\techo tree is $tree\n'>
        )
      }
    )
    (command.SimpleCommand
      words: [{(echo)} {(SQ <'one\n'> <two/one>)}]
      redirects: [(redir.Redir op:<Redir_Great '>'> fd:16777215 arg_word:{(expect)})]
    )
    (C {(test_expect_success)} {(SQ <'read-tree --prefix'>)} 
      {
        (SQ <'\n'> <'\tgit read-tree --prefix=two/ $tree &&\n'> <'\tgit ls-files >actual &&\n'> 
          <'\tcmp expect actual\n'>
        )
      }
    )
    (C {(test_done)})
  ]
)