(List
  (AndOr OP_AND_IF
    (Com {[LIT_DBRACKET_LIKE "["]} {[LIT_CHARS -z]} {[DQ [VarSub TEST_SRCDIR]]} {[LIT_DBRACKET_LIKE "]"]}    )
    (List
      (Com {[LIT_CHARS echo]} {[DQ [LIT_CHARS "TEST_SRCDIR not set!"]]}
        <
        (DescriptorRedirectNode target={[LIT_CHARS 2]} <REDIR_GREATAND ">&"> 1),
        >
      )
      (Com {[LIT_CHARS exit]} {[LIT_CHARS 1]}      )
    )
  )
  (AndOr OP_OR_IF
    (Com {[LIT_CHARS source]} {[DQ [VarSub TEST_SRCDIR][LIT_CHARS /src/test/shell/unittest.bash]]}    )
    (List
      (Com {[LIT_CHARS echo]} {[DQ [LIT_CHARS "Failed to source unittest.bash"]]}
        <
        (DescriptorRedirectNode target={[LIT_CHARS 2]} <REDIR_GREATAND ">&"> 1),
        >
      )
      (Com {[LIT_CHARS exit]} {[LIT_CHARS 1]}      )
    )
  )
  (FunctionDef set_up []
    (List
      (Com {[LIT_CHARS mkdir]} {[LIT_CHARS -p]} {[VarSub TEST_TMPDIR] [LIT_CHARS /workspace]}      )
      (Com {[LIT_CHARS cd]} {[VarSub TEST_TMPDIR] [LIT_CHARS /workspace]}      )
      (Com {[LIT_CHARS touch]} {[VarSub TEST_TMPDIR] [LIT_CHARS /workspace/WORKSPACE]}      )
    )
  )
  (FunctionDef tear_down []
    (Com {[LIT_CHARS rm]} {[LIT_CHARS -fr]} {[VarSub TEST_TMPDIR] [LIT_CHARS /workspace/] [LIT_OTHER "*"]}    )
  )
)