test/hope_dictionary_SUITE.erl

   1 -module(hope_dictionary_SUITE).
   2
   3 %% Callbacks
   4 -export(
   5     [ all/0
   6     , groups/0
   7     , init_per_group/2
   8     , end_per_group/2
   9     ]).
  10
  11 %% Test cases
  12 -export(
  13     [ t_set_new/1
  14     , t_set_existing/1
  15     , t_pop/1
  16     , t_fold/1
  17     ]).
  18
  19
  20 -define(DICT_MODULE         , dict_module).
  21 -define(DICT_MODULE_KV_LIST , hope_kv_list).
  22
  23
  24 %% ============================================================================
  25 %% Common Test callbacks
  26 %% ============================================================================
  27
  28 all() ->
  29     [{group, ?DICT_MODULE_KV_LIST}].
  30
  31 groups() ->
  32     Tests =
  33         [ t_set_new
  34         , t_set_existing
  35         , t_pop
  36         , t_fold
  37         ],
  38     Properties = [],
  39     [{?DICT_MODULE_KV_LIST, Properties, Tests}].
  40
  41 init_per_group(DictModule, Cfg) ->
  42     hope_kv_list:set(Cfg, ?DICT_MODULE, DictModule).
  43
  44 end_per_group(_DictModule, _Cfg) ->
  45     ok.
  46
  47
  48 %% =============================================================================
  49 %%  Test cases
  50 %% =============================================================================
  51
  52 t_set_new(Cfg) ->
  53     {some, DictModule} = hope_kv_list:get(Cfg, ?DICT_MODULE),
  54     Key           = key,
  55     ValExpected   = bar,
  56     ListInitial   = DictModule:empty(),
  57     ListResulting = DictModule:set(ListInitial, Key, ValExpected),
  58     {some, ValResulting} = DictModule:get(ListResulting, Key),
  59     ValResulting = ValExpected.
  60
  61 t_set_existing(Cfg) ->
  62     {some, DictModule} = hope_kv_list:get(Cfg, ?DICT_MODULE),
  63     Key           = key,
  64     ValInitial    = foo,
  65     ValExpected   = bar,
  66     ListInitial   = [{donald, duck}, {Key, ValInitial}],
  67     ListResulting = DictModule:set(ListInitial, Key, ValExpected),
  68     {some, ValResulting} = DictModule:get(ListResulting, Key),
  69     ValResulting = ValExpected.
  70
  71 t_pop(Cfg) ->
  72     {some, DictModule} = hope_kv_list:get(Cfg, ?DICT_MODULE),
  73     KVList = [{a, 1}, {b, 2}, {c, 3}],
  74     Dict1 = DictModule:of_kv_list(KVList),
  75     {{some, 1} , Dict2} = DictModule:pop(Dict1, a),
  76     {none      , Dict3} = DictModule:pop(Dict2, a),
  77     {{some, 2} , Dict4} = DictModule:pop(Dict3, b),
  78     {none      , Dict5} = DictModule:pop(Dict4, b),
  79     {{some, 3} , Dict6} = DictModule:pop(Dict5, c),
  80     {none      , Dict7} = DictModule:pop(Dict6, c),
  81     [] = DictModule:to_kv_list(Dict7).
  82
  83 t_fold(Cfg) ->
  84     {some, DictModule} = hope_kv_list:get(Cfg, ?DICT_MODULE),
  85     KVList = [{a, 1}, {a, 5}, {b, 3}, {c, 4}, {c, 4}],
  86     Dict = DictModule:of_kv_list(KVList),
  87     17 = DictModule:fold(Dict, fun (_K, V, Acc) -> V + Acc end, 0).