diff options
Diffstat (limited to 'erts/emulator')
| -rw-r--r-- | erts/emulator/test/bif_SUITE.erl | 70 |
1 files changed, 69 insertions, 1 deletions
diff --git a/erts/emulator/test/bif_SUITE.erl b/erts/emulator/test/bif_SUITE.erl index 15c09d9158..b4ef0e6d5a 100644 --- a/erts/emulator/test/bif_SUITE.erl +++ b/erts/emulator/test/bif_SUITE.erl @@ -22,12 +22,13 @@ -include("test_server.hrl"). -export([all/1,init_per_testcase/2,fin_per_testcase/2, + types/1, t_list_to_existing_atom/1,os_env/1,otp_7526/1, binary_to_atom/1,binary_to_existing_atom/1, atom_to_binary/1,min_max/1]). all(suite) -> - [t_list_to_existing_atom,os_env,otp_7526, + [types,t_list_to_existing_atom,os_env,otp_7526, atom_to_binary,binary_to_atom,binary_to_existing_atom, min_max]. @@ -39,6 +40,73 @@ fin_per_testcase(_Func, Config) -> Dog=?config(watchdog, Config), ?t:timetrap_cancel(Dog). +types(Config) when is_list(Config) -> + c:l(erl_bif_types), + case erlang:function_exported(erl_bif_types, module_info, 0) of + false -> + %% Fail cleanly. + ?line ?t:fail("erl_bif_types not compiled"); + true -> + types_1() + end. + +types_1() -> + ?line List0 = erlang:system_info(snifs), + + %% Ignore missing type information for hipe BIFs. + ?line List = [MFA || {M,_,_}=MFA <- List0, M =/= hipe_bifs], + + case [MFA || MFA <- List, not known_types(MFA)] of + [] -> + types_2(List); + BadTypes -> + io:put_chars("No type information:\n"), + io:format("~p\n", [lists:sort(BadTypes)]), + ?line ?t:fail({length(BadTypes),bifs_without_types}) + end. + +types_2(List) -> + BadArity = [MFA || {M,F,A}=MFA <- List, + begin + Types = erl_bif_types:arg_types(M, F, A), + length(Types) =/= A + end], + case BadArity of + [] -> + types_3(List); + [_|_] -> + io:put_chars("Bifs with bad arity\n"), + io:format("~p\n", [BadArity]), + ?line ?t:fail({length(BadArity),bad_arity}) + end. + +types_3(List) -> + BadSmokeTest = [MFA || {M,F,A}=MFA <- List, + begin + try erl_bif_types:type(M, F, A) of + Type -> + %% Test that type is returned. + not erl_types:is_erl_type(Type) + catch + Class:Error -> + io:format("~p: ~p ~p\n", + [MFA,Class,Error]), + true + end + end], + case BadSmokeTest of + [] -> + ok; + [_|_] -> + io:put_chars("Bifs with failing calls to erlang_bif_types:type/3 " + "(or with bogus return values):\n"), + io:format("~p\n", [BadSmokeTest]), + ?line ?t:fail({length(BadSmokeTest),bad_smoke_test}) + end. + +known_types({M,F,A}) -> + erl_bif_types:is_known(M, F, A). + t_list_to_existing_atom(Config) when is_list(Config) -> ?line all = list_to_existing_atom("all"), ?line ?MODULE = list_to_existing_atom(?MODULE_STRING), |