(command.CommandList
  children: [
    (command.ShAssignment
      pairs: [
        (assign_pair
          lhs: (sh_lhs_expr.Name name:test_description)
          op: assign_op.Equal
          rhs: {(SQ <'operations that cull histories in unusual ways'>)}
          spids: [4]
        )
      ]
    )
    (C {<.>} {<'./test-lib.sh'>})
    (C {<test_expect_success>} {<setup>} 
      {
        (SQ <'\n'> <'\ttest_commit A &&\n'> <'\ttest_commit B &&\n'> <'\ttest_commit C &&\n'> 
          <'\tgit checkout -b side HEAD^ &&\n'> <'\ttest_commit D &&\n'> <'\ttest_commit E &&\n'> <'\tgit merge master\n'>
        )
      }
    )
    (C {<test_expect_success>} {(SQ <'rev-list --first-parent --boundary'>)} 
      {(SQ <'\n'> <'\tgit rev-list --first-parent --boundary HEAD^..\n'>)}
    )
    (C {<test_done>})
  ]
)