(CommandList
  children: [
    (Assignment
      keyword: Assign_None
      pairs: [
        (assign_pair
          lhs: (LhsName name:test_description)
          op: Equal
          rhs: {(DQ ('Tests diff generation performance'))}
          spids: [4]
        )
      ]
      spids: [4]
    )
    (C {(.)} {(./perf-lib.sh)})
    (C {(test_perf_default_repo)})
    (C {(test_perf)} {(SQ <'log -3000 (baseline)'>)} {(SQ <'\n'> <'\tgit log -3000 >/dev/null\n'>)})
    (C {(test_perf)} {(SQ <'log --raw -3000 (tree-only)'>)} 
      {(SQ <'\n'> <'\tgit log --raw -3000 >/dev/null\n'>)}
    )
    (C {(test_perf)} {(SQ <'log -p -3000 (Myers)'>)} {(SQ <'\n'> <'\tgit log -p -3000 >/dev/null\n'>)})
    (C {(test_perf)} {(SQ <'log -p -3000 --histogram'>)} 
      {(SQ <'\n'> <'\tgit log -p -3000 --histogram >/dev/null\n'>)}
    )
    (C {(test_perf)} {(SQ <'log -p -3000 --patience'>)} 
      {(SQ <'\n'> <'\tgit log -p -3000 --patience >/dev/null\n'>)}
    )
    (C {(test_done)})
  ]
)