(CommandList
  children: [
    (Assignment
      keyword: Assign_None
      pairs: [
        (assign_pair
          lhs: (LhsName name:test_description)
          op: Equal
          rhs: {(SQ <"operations that cull histories in unusual ways">)}
          spids: [4]
        )
      ]
      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)})
  ]
)