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-rw-r--r--erts/emulator/test/map_SUITE.erl66
1 files changed, 50 insertions, 16 deletions
diff --git a/erts/emulator/test/map_SUITE.erl b/erts/emulator/test/map_SUITE.erl
index dfa1629112..02f3c89318 100644
--- a/erts/emulator/test/map_SUITE.erl
+++ b/erts/emulator/test/map_SUITE.erl
@@ -52,6 +52,7 @@
t_bif_map_values/1,
t_bif_map_to_list/1,
t_bif_map_from_list/1,
+ t_bif_erts_internal_maps_to_list/1,
%% erlang
t_erlang_hash/1,
@@ -118,6 +119,7 @@ all() -> [t_build_and_match_literals, t_build_and_match_literals_large,
t_bif_map_update,
t_bif_map_values,
t_bif_map_to_list, t_bif_map_from_list,
+ t_bif_erts_internal_maps_to_list,
%% erlang
t_erlang_hash, t_map_encode_decode,
@@ -2362,23 +2364,55 @@ t_bif_map_from_list(Config) when is_list(Config) ->
{'EXIT', {badarg,_}} = (catch maps:from_list(id(42))),
ok.
-t_bif_build_and_check(Config) when is_list(Config) ->
- ok = check_build_and_remove(750,[
- fun(K) -> [K,K] end,
- fun(K) -> [float(K),K] end,
- fun(K) -> K end,
- fun(K) -> {1,K} end,
- fun(K) -> {K} end,
- fun(K) -> [K|K] end,
- fun(K) -> [K,1,2,3,4] end,
- fun(K) -> {K,atom} end,
- fun(K) -> float(K) end,
- fun(K) -> integer_to_list(K) end,
- fun(K) -> list_to_atom(integer_to_list(K)) end,
- fun(K) -> [K,{K,[K,{K,[K]}]}] end,
- fun(K) -> <<K:32>> end
- ]),
+t_bif_erts_internal_maps_to_list(Config) when is_list(Config) ->
+ %% small maps
+ [] = erts_internal:maps_to_list(#{},-1),
+ [] = erts_internal:maps_to_list(#{},-2),
+ [] = erts_internal:maps_to_list(#{},10),
+ [{a,1},{b,2}] = lists:sort(erts_internal:maps_to_list(#{a=>1,b=>2}, 2)),
+ [{a,1},{b,2}] = lists:sort(erts_internal:maps_to_list(#{a=>1,b=>2}, -1)),
+ [{_,_}] = erts_internal:maps_to_list(#{a=>1,b=>2}, 1),
+ [{a,1},{b,2},{c,3}] = lists:sort(erts_internal:maps_to_list(#{c=>3,a=>1,b=>2},-2)),
+ [{a,1},{b,2},{c,3}] = lists:sort(erts_internal:maps_to_list(#{c=>3,a=>1,b=>2},3)),
+ [{a,1},{b,2},{c,3}] = lists:sort(erts_internal:maps_to_list(#{c=>3,a=>1,b=>2},5)),
+ [{_,_},{_,_}] = erts_internal:maps_to_list(#{c=>3,a=>1,b=>2},2),
+ [{_,_}] = erts_internal:maps_to_list(#{c=>3,a=>1,b=>2},1),
+ [] = erts_internal:maps_to_list(#{c=>3,a=>1,b=>2},0),
+
+ %% big maps
+ M = maps:from_list([{I,ok}||I <- lists:seq(1,500)]),
+ [] = erts_internal:maps_to_list(M,0),
+ [{_,_}] = erts_internal:maps_to_list(M,1),
+ [{_,_},{_,_}] = erts_internal:maps_to_list(M,2),
+ Ls1 = erts_internal:maps_to_list(M,10),
+ 10 = length(Ls1),
+ Ls2 = erts_internal:maps_to_list(M,20),
+ 20 = length(Ls2),
+ Ls3 = erts_internal:maps_to_list(M,120),
+ 120 = length(Ls3),
+ Ls4 = erts_internal:maps_to_list(M,-1),
+ 500 = length(Ls4),
+ %% error cases
+ {'EXIT', {{badmap,[{a,b},b]},_}} = (catch erts_internal:maps_to_list(id([{a,b},b]),id(1))),
+ {'EXIT', {badarg,_}} = (catch erts_internal:maps_to_list(id(#{}),id(a))),
+ {'EXIT', {badarg,_}} = (catch erts_internal:maps_to_list(id(#{1=>2}),id(<<>>))),
+ ok.
+
+t_bif_build_and_check(Config) when is_list(Config) ->
+ ok = check_build_and_remove(750,[fun(K) -> [K,K] end,
+ fun(K) -> [float(K),K] end,
+ fun(K) -> K end,
+ fun(K) -> {1,K} end,
+ fun(K) -> {K} end,
+ fun(K) -> [K|K] end,
+ fun(K) -> [K,1,2,3,4] end,
+ fun(K) -> {K,atom} end,
+ fun(K) -> float(K) end,
+ fun(K) -> integer_to_list(K) end,
+ fun(K) -> list_to_atom(integer_to_list(K)) end,
+ fun(K) -> [K,{K,[K,{K,[K]}]}] end,
+ fun(K) -> <<K:32>> end]),
ok.
check_build_and_remove(_,[]) -> ok;