diff options
Diffstat (limited to 'lib/stdlib/test/maps_SUITE.erl')
| -rw-r--r-- | lib/stdlib/test/maps_SUITE.erl | 25 |
1 files changed, 22 insertions, 3 deletions
diff --git a/lib/stdlib/test/maps_SUITE.erl b/lib/stdlib/test/maps_SUITE.erl index 28895c4efe..8d479f8211 100644 --- a/lib/stdlib/test/maps_SUITE.erl +++ b/lib/stdlib/test/maps_SUITE.erl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 1997-2021. All Rights Reserved. +%% Copyright Ericsson AB 1997-2022. All Rights Reserved. %% %% Licensed under the Apache License, Version 2.0 (the "License"); %% you may not use this file except in compliance with the License. @@ -42,7 +42,8 @@ t_from_list_check_trapping/1, t_from_keys_check_trapping/1, t_keys_trapping/1, - t_values_trapping/1]). + t_values_trapping/1, + t_groups_from_list/1]). -define(badmap(V,F,Args), {'EXIT', {{badmap,V}, [{maps,F,Args,_}|_]}}). -define(badkey(K,F,Args), {'EXIT', {{badkey,K}, [{maps,F,Args,_}|_]}}). @@ -68,7 +69,8 @@ all() -> t_from_list_check_trapping, t_from_keys_check_trapping, t_keys_trapping, - t_values_trapping]. + t_values_trapping, + t_groups_from_list]. t_from_list_kill_process(Config) when is_list(Config) -> Killer = self(), @@ -770,6 +772,16 @@ t_size_1(Config) when is_list(Config) -> {'EXIT', {{badmap,<<>>}, _}} = (catch maps:size(id(<<>>))), ok. +t_groups_from_list(_Config) -> + #{} = maps:groups_from_list(fun erlang:length/1, []), + #{3 := ["tna","tac"], 5 := ["ognid"], 7 := ["olaffub"]} = + maps:groups_from_list( + fun erlang:length/1, + fun lists:reverse/1, + ["ant", "buffalo", "cat", "dingo"] + ), + #{0 := [2], 1 := [1, 3]} = maps:groups_from_list(fun(X) -> X rem 2 end, [1, 2, 3]). + error_info(_Config) -> BadIterator = [-1|#{}], GoodIterator = maps:iterator(#{}), @@ -806,6 +818,13 @@ error_info(_Config) -> {get, [key, {no,map}]}, {get, [key, {no,map}, default]}, + {groups_from_list, [not_a_fun, []]}, + {groups_from_list, [fun hd/1, not_a_list]}, + + {groups_from_list, [not_a_fun, fun(_) -> ok end, []]}, + {groups_from_list, [fun(_) -> ok end, not_a_fun, []]}, + {groups_from_list, [fun(_) -> ok end, fun(_) -> ok end, not_a_list]}, + {intersect, [#{a => b}, y]}, {intersect, [x, #{a => b}]}, {intersect, [x, y],[{1,".*"},{2,".*"}]}, |