(command.CommandList
  children: [
    (command.Assignment
      keyword: Assign_None
      pairs: [
        (assign_pair
          lhs: (lhs_expr.LhsName name:test_description)
          op: Equal
          rhs: {(SQ <'git annotate'>)}
        )
      ]
    )
    (C {(.)} {(./test-lib.sh)})
    (command.Assignment
      keyword: Assign_None
      pairs: [(assign_pair lhs:(lhs_expr.LhsName name:PROG) op:Equal rhs:{(SQ <'git annotate'>)})]
    )
    (C {(.)} {(DQ ($ VSub_DollarName '$TEST_DIRECTORY')) (/annotate-tests.sh)})
    (C {(test_expect_success)} {(SQ <'annotate old revision'>)} 
      {
        (SQ <'\n'> <'\tgit annotate file master >actual &&\n'> 
          <'\tawk "{ print \\$3; }" <actual >authors &&\n'> <'\ttest 2 = $(grep A <authors | wc -l) &&\n'> <'\ttest 2 = $(grep B <authors | wc -l)\n'>
        )
      }
    )
    (C {(test_done)})
  ]
)