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