diff options
Diffstat (limited to 'lib/stdlib/test/maps_SUITE.erl')
| -rw-r--r-- | lib/stdlib/test/maps_SUITE.erl | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/lib/stdlib/test/maps_SUITE.erl b/lib/stdlib/test/maps_SUITE.erl index 42e669a799..0021dd0657 100644 --- a/lib/stdlib/test/maps_SUITE.erl +++ b/lib/stdlib/test/maps_SUITE.erl @@ -30,6 +30,7 @@ -export([t_update_with_3/1, t_update_with_4/1, t_get_3/1, t_filter_2/1, t_fold_3/1,t_map_2/1,t_size_1/1, + t_iterator_1/1, t_iterator_2/1, t_with_2/1,t_without_2/1]). %%-define(badmap(V,F,Args), {'EXIT', {{badmap,V}, [{maps,F,Args,_}|_]}}). @@ -47,6 +48,7 @@ all() -> [t_update_with_3,t_update_with_4, t_get_3,t_filter_2, t_fold_3,t_map_2,t_size_1, + t_iterator_1, t_iterator_2, t_with_2,t_without_2]. t_update_with_3(Config) when is_list(Config) -> @@ -127,6 +129,8 @@ t_filter_2(Config) when is_list(Config) -> Pred2 = fun(K,V) -> is_list(K) andalso (V rem 2) =:= 0 end, #{a := 2,c := 4} = maps:filter(Pred1,M), #{"b" := 2,"c" := 4} = maps:filter(Pred2,M), + #{a := 2,c := 4} = maps:filter(Pred1,maps:iterator(M)), + #{"b" := 2,"c" := 4} = maps:filter(Pred2,maps:iterator(M)), %% error case ?badmap(a,filter,[_,a]) = (catch maps:filter(fun(_,_) -> ok end,id(a))), ?badarg(filter,[<<>>,#{}]) = (catch maps:filter(id(<<>>),#{})), @@ -139,6 +143,8 @@ t_fold_3(Config) when is_list(Config) -> Tot0 = lists:sum(Vs), Tot1 = maps:fold(fun({k,_},V,A) -> A + V end, 0, M0), true = Tot0 =:= Tot1, + Tot2 = maps:fold(fun({k,_},V,A) -> A + V end, 0, maps:iterator(M0)), + true = Tot0 =:= Tot2, %% error case ?badmap(a,fold,[_,0,a]) = (catch maps:fold(fun(_,_,_) -> ok end,0,id(a))), @@ -151,12 +157,69 @@ t_map_2(Config) when is_list(Config) -> #{ {k,1} := 1, {k,200} := 200} = M0, M1 = maps:map(fun({k,_},V) -> V + 42 end, M0), #{ {k,1} := 43, {k,200} := 242} = M1, + M2 = maps:map(fun({k,_},V) -> V + 42 end, maps:iterator(M0)), + #{ {k,1} := 43, {k,200} := 242} = M2, %% error case ?badmap(a,map,[_,a]) = (catch maps:map(fun(_,_) -> ok end, id(a))), ?badarg(map,[<<>>,#{}]) = (catch maps:map(id(<<>>),#{})), ok. +t_iterator_1(Config) when is_list(Config) -> + + %% Small map test + M0 = #{ a => 1, b => 2 }, + I0 = maps:iterator(M0), + {K1,V1,I1} = maps:next(I0), + {K2,V2,I2} = maps:next(I1), + none = maps:next(I2), + + KVList = lists:sort([{K1,V1},{K2,V2}]), + KVList = lists:sort(maps:to_list(M0)), + + %% Large map test + + Vs = lists:seq(1,200), + M2 = maps:from_list([{{k,I},I}||I<-Vs]), + KVList2 = lists:sort(iter_kv(maps:iterator(M2))), + KVList2 = lists:sort(maps:to_list(M2)), + ok. + +t_iterator_2(Config) when is_list(Config) -> + + Vs = lists:seq(1,200), + Maps = [#{ a => 1, b => 2 }, maps:from_list([{{k,I},I}||I<-Vs])], + Optimize = [speed, memory], + Ordered = [true, false], + + [test_iterator(Map, Opt, Ord) || Map <- Maps, + Opt <- Optimize, + Ord <- Ordered], + + ok. + +test_iterator(Map, Opt, Ord) -> + Opts = #{ optimize => Opt, ordered => Ord }, + test_iterator_1(maps:iterator(Map, Opts), Map, Opts). + +test_iterator_1(Iter, OrigMap, Opts) -> + erlang:display(Opts), + KVs = iter_kv(Iter), + case Opts of + #{ ordered := true } -> + KVs = lists:sort(maps:to_list(OrigMap)); + #{ ordered := false } -> + OrderedKVs = lists:sort(KVs), + OrderedKVs = lists:sort(maps:to_list(OrigMap)) + end. + +iter_kv(I) -> + case maps:next(I) of + none -> + []; + {K,V,NI} -> + [{K,V} | iter_kv(NI)] + end. t_size_1(Config) when is_list(Config) -> 0 = maps:size(#{}), |