(CommandList
  children: [
    (Assignment
      keyword: Assign_None
      pairs: [
        (assign_pair
          lhs: (LhsName name:test_description)
          op: Equal
          rhs: {(SQ <"Tests rebase performance">)}
          spids: [4]
        )
      ]
      spids: [4]
    )
    (C {(.)} {(./perf-lib.sh)})
    (C {(test_perf_default_repo)})
    (C {(test_expect_success)} {(SQ <setup>)} 
      {
        (SQ <"\n"> <"\tgit checkout -f -b base &&\n"> <"\tgit checkout -b to-rebase &&\n"> 
          <"\tgit checkout -b upstream &&\n"> <"\tfor i in $(seq 100)\n"> <"\tdo\n"> <"\t\t# simulate huge diffs\n"> 
          <"\t\techo change$i >unrelated-file$i &&\n"> <"\t\tseq 1000 >>unrelated-file$i &&\n"> <"\t\tgit add unrelated-file$i &&\n"> <"\t\ttest_tick &&\n"> 
          <"\t\tgit commit -m commit$i unrelated-file$i &&\n"> <"\t\techo change$i >unrelated-file$i &&\n"> <"\t\tseq 1000 | tac >>unrelated-file$i &&\n"> 
          <"\t\tgit add unrelated-file$i &&\n"> <"\t\ttest_tick &&\n"> <"\t\tgit commit -m commit$i-reverse unrelated-file$i ||\n"> <"\t\tbreak\n"> 
          <"\tdone &&\n"> <"\tgit checkout to-rebase &&\n"> <"\ttest_commit our-patch interesting-file\n">
        )
      }
    )
    (C {(test_perf)} {(SQ <"rebase on top of a lot of unrelated changes">)} 
      {(SQ <"\n"> <"\tgit rebase --onto upstream HEAD^ &&\n"> <"\tgit rebase --onto base HEAD^\n">)}
    )
    (C {(test_done)})
  ]
)