(CommandList
  children: [
    (Assignment
      keyword: Assign_None
      pairs: [
        (assign_pair
          lhs: (LhsName name:test_description)
          op: Equal
          rhs: {(DQ ('Test git-clean performance'))}
          spids: [4]
        )
      ]
      spids: [4]
    )
    (C {(.)} {(./perf-lib.sh)})
    (C {(test_perf_default_repo)})
    (C {(test_checkout_worktree)})
    (C {(test_expect_success)} {(SQ <'setup untracked directory with many sub dirs'>)} 
      {
        (SQ <'\n'> <'\trm -rf 500_sub_dirs 100000_sub_dirs clean_test_dir &&\n'> 
          <'\tmkdir 500_sub_dirs 100000_sub_dirs clean_test_dir &&\n'> <'\tfor i in $(test_seq 1 500)\n'> <'\tdo\n'> <'\t\tmkdir 500_sub_dirs/dir$i || return $?\n'> 
          <'\tdone &&\n'> <'\tfor i in $(test_seq 1 200)\n'> <'\tdo\n'> 
          <'\t\tcp -r 500_sub_dirs 100000_sub_dirs/dir$i || return $?\n'> <'\tdone\n'>
        )
      }
    )
    (C {(test_perf)} {(SQ <'clean many untracked sub dirs, check for nested git'>)} 
      {(SQ <'\n'> <'\tgit clean -n -q -f -d 100000_sub_dirs/\n'>)}
    )
    (C {(test_perf)} {(SQ <'clean many untracked sub dirs, ignore nested git'>)} 
      {(SQ <'\n'> <'\tgit clean -n -q -f -f -d 100000_sub_dirs/\n'>)}
    )
    (C {(test_perf)} {(SQ <'ls-files -o'>)} {(SQ <'\n'> <'\tgit ls-files -o\n'>)})
    (C {(test_done)})
  ]
)