(CommandList
  children: [
    (Assignment
      keyword: Assign_None
      pairs: [
        (assign_pair
          lhs: (LhsName name:test_description)
          op: Equal
          rhs: {(SQ <'Peter MacMillan'>)}
          spids: [4]
        )
      ]
      spids: [4]
    )
    (C {(.)} {(./test-lib.sh)})
    (C {(test_expect_success)} {(setup)} 
      {
        (SQ <'\n'> <'\techo Hello >file &&\n'> <'\tgit add file &&\n'> <'\ttest_tick &&\n'> 
          <'\tgit commit -m V1 &&\n'> <'\techo Hello world >file &&\n'> <'\tgit add file &&\n'> <'\tgit checkout -b other\n'>
        )
      }
    )
    (C {(test_expect_success)} {(SQ <'check all changes are staged'>)} 
      {(SQ <'\n'> <'\tgit diff --exit-code\n'>)}
    )
    (C {(test_expect_success)} {(SQ <'second commit'>)} {(SQ <'\n'> <'\tgit commit -m V2\n'>)})
    (C {(test_expect_success)} {(SQ <check>)} {(SQ <'\n'> <'\tgit diff --cached --exit-code\n'>)})
    (C {(test_done)})
  ]
)