(CommandList
  children: [
    (Assignment
      keyword: Assign_None
      pairs: [
        (assign_pair
          lhs: (LhsName name:test_description)
          op: Equal
          rhs: {(SQ <'Pickaxe options'>)}
          spids: [13]
        )
      ]
      spids: [13]
    )
    (C {(.)} {(./test-lib.sh)})
    (C {(test_expect_success)} {(setup)} 
      {
        (SQ <'\n'> <'\ttest_commit initial &&\n'> <'\tprintf "%04096d" 0 >4096-zeroes.txt &&\n'> 
          <'\tgit add 4096-zeroes.txt &&\n'> <'\ttest_tick &&\n'> <'\tgit commit -m "A 4k file"\n'>
        )
      }
    )
    (C {(test_expect_success)} {(SQ <'-G matches'>)} 
      {
        (SQ <'\n'> <'\tgit diff --name-only -G "^0{4096}$" HEAD^ >out &&\n'> 
          <'\ttest 4096-zeroes.txt = "$(cat out)"\n'>
        )
      }
    )
    (C {(test_done)})
  ]
)