anchor.diff:  'forty-three'(X, XS) ->
     [43, X, XS].
   
  +-spec 'forty-four__val'() -> any().
  +'forty-four__val'() ->
  +  unexisting:function().
  +
   -spec deref(config()) -> result().
   deref(_Config) ->
     Ns   = <<"clojerl_Var_SUITE">>,
  
positive.code:         , 'forty-two'/1
          , 'forty-two'/2
          , 'forty-three'/2
          ]).
  
  -export([ deref/1
  
negative.code:   Name2 = <<"forty-three">>,
    Var1  = 'clojerl.Var':new(Ns, Name2),
    ok = try clj_core:deref(Var1), error
         catch _:_ -> ok
         end,
  
    ct:comment("Try to deref an existing var"),
    Name3 = <<"forty-four">>,
    Var2  = 'clojerl.Var':new(Ns, Name3),
    ok = try clj_core:deref(Var2), error
         catch _:_ -> ok
         end,
  
  