%%
%% %CopyrightBegin%
%%
%% Copyright Ericsson AB 2005-2010. All Rights Reserved.
%%
%% The contents of this file are subject to the Erlang Public License,
%% Version 1.1, (the "License"); you may not use this file except in
%% compliance with the License. You should have received a copy of the
%% Erlang Public License along with this software. If not, it can be
%% retrieved online at http://www.erlang.org/.
%%
%% Software distributed under the License is distributed on an "AS IS"
%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
%% the License for the specific language governing rights and limitations
%% under the License.
%%
%% %CopyrightEnd%
%%
-module(module_info_SUITE).
-include("test_server.hrl").
-export([all/1,init_per_testcase/2,end_per_testcase/2,
exports/1,functions/1,native/1]).
%%-compile(native).
%% Helper.
-export([native_proj/1,native_filter/1]).
all(suite) ->
modules().
modules() ->
[exports,functions,native].
init_per_testcase(Func, Config) when is_atom(Func), is_list(Config) ->
Dog = ?t:timetrap(?t:minutes(3)),
[{watchdog,Dog}|Config].
end_per_testcase(_Func, Config) ->
Dog = ?config(watchdog, Config),
?t:timetrap_cancel(Dog).
%% Should return all functions exported from this module. (local)
all_exported() ->
All = add_arity(modules()),
lists:sort([{all,1},{init_per_testcase,2},{end_per_testcase,2},
{module_info,0},{module_info,1},{native_proj,1},
{native_filter,1}|All]).
%% Should return all functions in this module. (local)
all_functions() ->
Locals = [{add_arity,1},{add_arity,2},{all_exported,0},{all_functions,0}],
lists:sort(Locals++all_exported()).
%% Test that the list of exported functions from this module is correct.
exports(Config) when is_list(Config) ->
?line All = all_exported(),
?line All = lists:sort(?MODULE:module_info(exports)),
?line (catch ?MODULE:foo()),
?line All = lists:sort(?MODULE:module_info(exports)),
ok.
%% Test that the list of exported functions from this module is correct.
functions(Config) when is_list(Config) ->
?line All = all_functions(),
?line All = lists:sort(?MODULE:module_info(functions)),
ok.
%% Test that the list of exported functions from this module is correct.
native(Config) when is_list(Config) ->
?line All = all_functions(),
?line case ?MODULE:module_info(native_addresses) of
[] ->
{comment,"no native functions"};
L ->
%% Verify that all functions have unique addresses.
?line S0 = sofs:set(L, [{name,arity,addr}]),
?line S1 = sofs:projection({external,fun ?MODULE:native_proj/1}, S0),
?line S2 = sofs:relation_to_family(S1),
?line S3 = sofs:family_specification(fun ?MODULE:native_filter/1, S2),
?line 0 = sofs:no_elements(S3),
?line S4 = sofs:range(S1),
%% Verify that the set of function with native addresses
%% is a subset of all functions in the module.
?line AllSet = sofs:set(All, [{name,arity}]),
?line true = sofs:is_subset(S4, AllSet),
{comment,integer_to_list(sofs:no_elements(S0))++" native functions"}
end.
native_proj({Name,Arity,Addr}) ->
{Addr,{Name,Arity}}.
native_filter(Set) ->
sofs:no_elements(Set) =/= 1.
%% Helper functions (local).
add_arity(L) ->
add_arity(L, []).
add_arity([H|T], Acc) ->
add_arity(T, [{H,1}|Acc]);
add_arity([], Acc) -> lists:reverse(Acc).
