1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
|
%%
%% %CopyrightBegin%
%%
%% Copyright Ericsson AB 2005-2016. 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.
%% You may obtain a copy of the License at
%%
%% http://www.apache.org/licenses/LICENSE-2.0
%%
%% Unless required by applicable law or agreed to in writing, software
%% distributed under the License is distributed on an "AS IS" BASIS,
%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
%% See the License for the specific language governing permissions and
%% limitations under the License.
%%
%% %CopyrightEnd%
%%
-module(module_info_SUITE).
-include_lib("common_test/include/ct.hrl").
-export([all/0, suite/0,
exports/1,functions/1,deleted/1,native/1,info/1]).
%%-compile(native).
%% Helper.
-export([native_proj/1,native_filter/1]).
suite() ->
[{ct_hooks,[ts_install_cth]},
{timetrap, {minutes, 3}}].
all() ->
modules().
modules() ->
[exports, functions, deleted, native, info].
%% Should return all functions exported from this module. (local)
all_exported() ->
All = add_arity(modules()),
lists:sort([{all,0},{suite,0},
{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},
{modules,0}],
lists:sort(Locals++all_exported()).
%% Test that the list of exported functions from this module is correct.
exports(Config) when is_list(Config) ->
All = all_exported(),
All = lists:sort(?MODULE:module_info(exports)),
(catch ?MODULE:foo()),
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) ->
All = all_functions(),
All = lists:sort(?MODULE:module_info(functions)),
ok.
%% Test that deleted modules cause badarg
deleted(Config) when is_list(Config) ->
Data = proplists:get_value(data_dir, Config),
File = filename:join(Data, "module_info_test"),
{ok,module_info_test,Code} = compile:file(File, [binary]),
{module,module_info_test} = erlang:load_module(module_info_test, Code),
17 = module_info_test:f(),
[_|_] = erlang:get_module_info(module_info_test, attributes),
[_|_] = erlang:get_module_info(module_info_test),
%% first delete it
true = erlang:delete_module(module_info_test),
{'EXIT',{undef, _}} = (catch module_info_test:f()),
{'EXIT',{badarg, _}} = (catch erlang:get_module_info(module_info_test,attributes)),
{'EXIT',{badarg, _}} = (catch erlang:get_module_info(module_info_test)),
%% then purge it
true = erlang:purge_module(module_info_test),
{'EXIT',{undef, _}} = (catch module_info_test:f()),
{'EXIT',{badarg, _}} = (catch erlang:get_module_info(module_info_test,attributes)),
{'EXIT',{badarg, _}} = (catch erlang:get_module_info(module_info_test)),
ok.
%% Test that the list of exported functions from this module is correct.
%% Verify that module_info(native) works.
native(Config) when is_list(Config) ->
All = all_functions(),
case ?MODULE:module_info(native_addresses) of
[] ->
false = ?MODULE:module_info(native),
{comment,"no native functions"};
L ->
true = ?MODULE:module_info(native),
%% Verify that all functions have unique addresses.
S0 = sofs:set(L, [{name,arity,addr}]),
S1 = sofs:projection({external,fun ?MODULE:native_proj/1}, S0),
S2 = sofs:relation_to_family(S1),
S3 = sofs:family_specification(fun ?MODULE:native_filter/1, S2),
0 = sofs:no_elements(S3),
S4 = sofs:range(S1),
%% Verify that the set of function with native addresses
%% is a subset of all functions in the module.
AllSet = sofs:set(All, [{name,arity}]),
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.
%% Test that the module info of this module is correct. Use
%% erlang:get_module_info(?MODULE) to avoid compiler optimization tricks.
info(Config) when is_list(Config) ->
Info = erlang:get_module_info(?MODULE),
All = all_exported(),
{ok,{?MODULE,MD5}} = beam_lib:md5(code:which(?MODULE)),
{module, ?MODULE} = lists:keyfind(module, 1, Info),
{md5, MD5} = lists:keyfind(md5, 1, Info),
{exports, Exports} = lists:keyfind(exports, 1, Info),
All = lists:sort(Exports),
{attributes, Attrs} = lists:keyfind(attributes, 1, Info),
{vsn,_} = lists:keyfind(vsn, 1, Attrs),
{compile, Compile} = lists:keyfind(compile, 1, Info),
{options,_} = lists:keyfind(options, 1, Compile),
ok.
%% 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).
|
