(command.CommandList
  children: [
    (command.ShAssignment
      pairs: [
        (assign_pair
          lhs: (sh_lhs_expr.Name name:test_description)
          op: assign_op.Equal
          rhs: {(SQ <'Pickaxe options'>)}
          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>})
  ]
)