diff options
| author | Maria-12648430 <maria-12648430@gmx.net> | 2020-12-01 15:39:14 +0100 |
|---|---|---|
| committer | Maria-12648430 <maria-12648430@gmx.net> | 2020-12-01 15:39:14 +0100 |
| commit | 12c1200dc83f51d0cfe055b7fec449152af7530d (patch) | |
| tree | fd6f61d1e65697c679671b43b260255cadadb39d /lib/stdlib/test/maps_SUITE.erl | |
| parent | 508ccbf5093b14611c249c46a6dbe08a80e40f43 (diff) | |
| download | erlang-12c1200dc83f51d0cfe055b7fec449152af7530d.tar.gz | |
Add maps:filtermap/2
Diffstat (limited to 'lib/stdlib/test/maps_SUITE.erl')
| -rw-r--r-- | lib/stdlib/test/maps_SUITE.erl | 18 |
1 files changed, 16 insertions, 2 deletions
diff --git a/lib/stdlib/test/maps_SUITE.erl b/lib/stdlib/test/maps_SUITE.erl index 3d5b0d7465..451b1b54e9 100644 --- a/lib/stdlib/test/maps_SUITE.erl +++ b/lib/stdlib/test/maps_SUITE.erl @@ -28,7 +28,7 @@ -export([all/0, suite/0]). -export([t_update_with_3/1, t_update_with_4/1, - t_get_3/1, t_filter_2/1, + t_get_3/1, t_filter_2/1, t_filtermap_2/1, t_fold_3/1,t_map_2/1,t_size_1/1, t_iterator_1/1, t_put_opt/1, t_merge_opt/1, t_with_2/1,t_without_2/1, @@ -45,7 +45,7 @@ suite() -> all() -> [t_update_with_3,t_update_with_4, - t_get_3,t_filter_2, + t_get_3,t_filter_2,t_filtermap_2, t_fold_3,t_map_2,t_size_1, t_iterator_1,t_put_opt,t_merge_opt, t_with_2,t_without_2, @@ -141,6 +141,20 @@ t_filter_2(Config) when is_list(Config) -> ?badarg(filter,[<<>>,#{}]) = (catch maps:filter(id(<<>>),#{})), ok. +t_filtermap_2(Config) when is_list(Config) -> + M0 = maps:from_list([{I, I} || I <- lists:seq(1, 30)]), + Pred = fun(K,_) when K=<10 -> true; (K,_) when K=<20 -> false; (_,V) -> {true, V * V} end, + M1 = maps:filtermap(Pred, M0), + M2 = maps:filtermap(Pred, maps:iterator(M0)), + #{1 := 1, 10 := 10, 21 := 21 * 21, 30 := 30 * 30} = M1, + false = maps:is_key(11, M1), + false = maps:is_key(20, M1), + true = M1 =:= M2, + %% error case + ?badmap(a,filtermap,[_,a]) = (catch maps:filtermap(fun(_,_) -> ok end,id(a))), + ?badarg(filtermap,[<<>>,#{}]) = (catch maps:filtermap(id(<<>>),#{})), + ok. + t_fold_3(Config) when is_list(Config) -> Vs = lists:seq(1,200), M0 = maps:from_list([{{k,I},I}||I<-Vs]), |