diff options
Diffstat (limited to 'lib/compiler/test/lc_SUITE.erl')
| -rw-r--r-- | lib/compiler/test/lc_SUITE.erl | 21 |
1 files changed, 19 insertions, 2 deletions
diff --git a/lib/compiler/test/lc_SUITE.erl b/lib/compiler/test/lc_SUITE.erl index 6b3472b37b..6c5b34498b 100644 --- a/lib/compiler/test/lc_SUITE.erl +++ b/lib/compiler/test/lc_SUITE.erl @@ -22,7 +22,8 @@ init_per_group/2,end_per_group/2, init_per_testcase/2,end_per_testcase/2, basic/1,deeply_nested/1,no_generator/1, - empty_generator/1,no_export/1,shadow/1]). + empty_generator/1,no_export/1,shadow/1, + effect/1]). -include_lib("test_server/include/test_server.hrl"). @@ -39,7 +40,8 @@ groups() -> no_generator, empty_generator, no_export, - shadow + shadow, + effect ]}]. init_per_suite(Config) -> @@ -199,6 +201,21 @@ shadow(Config) when is_list(Config) -> Shadowed < 10]), ok. +effect(Config) when is_list(Config) -> + [{42,{a,b,c}}] = + do_effect(fun(F, L) -> + [F({V1,V2}) || + #{<<1:500>>:=V1,<<2:301>>:=V2} <- L], + ok + end, id([#{},x,#{<<1:500>>=>42,<<2:301>>=>{a,b,c}}])), + ok. + +do_effect(Lc, L) -> + put(?MODULE, []), + F = fun(V) -> put(?MODULE, [V|get(?MODULE)]) end, + ok = Lc(F, L), + lists:reverse(erase(?MODULE)). + id(I) -> I. fc(Args, {'EXIT',{function_clause,[{?MODULE,_,Args,_}|_]}}) -> ok; |