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
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
|
%%
%% %CopyrightBegin%
%%
%% Copyright Ericsson AB 1999-2010. 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(fun_SUITE).
-export([all/0, suite/0,groups/0,init_per_group/2,end_per_group/2,
init_per_testcase/2,end_per_testcase/2,
init_per_suite/1,end_per_suite/1,
good_call/1,bad_apply/1,bad_fun_call/1,badarity/1,
ext_badarity/1,otp_6061/1]).
-export([nothing/0]).
-include_lib("test_server/include/test_server.hrl").
suite() -> [{suite_callbacks,[ts_install_scb]}].
all() ->
[cases()].
groups() ->
[].
init_per_group(_GroupName, Config) ->
Config.
end_per_group(_GroupName, Config) ->
Config.
cases() ->
[good_call, bad_apply, bad_fun_call, badarity,
ext_badarity, otp_6061].
init_per_testcase(_Case, Config) ->
test_lib:interpret(?MODULE),
Dog = test_server:timetrap(?t:minutes(1)),
[{watchdog,Dog}|Config].
end_per_testcase(_Case, Config) ->
Dog = ?config(watchdog, Config),
?t:timetrap_cancel(Dog),
ok.
init_per_suite(Config) when is_list(Config) ->
?line test_lib:interpret(?MODULE),
?line true = lists:member(?MODULE, int:interpreted()),
ok.
end_per_suite(Config) when is_list(Config) ->
ok.
good_call(Config) when is_list(Config) ->
?line F = fun() -> ok end,
?line ok = F(),
?line FF = fun ?MODULE:nothing/0,
?line ok = FF(),
ok.
bad_apply(doc) ->
"Test that the correct EXIT code is returned for all types of bad funs.";
bad_apply(suite) -> [];
bad_apply(Config) when is_list(Config) ->
?line bad_apply_fc(42, [0]),
?line bad_apply_fc(xx, [1]),
?line bad_apply_fc({}, [2]),
?line bad_apply_fc({1}, [3]),
?line bad_apply_fc({1,2,3}, [4]),
?line bad_apply_fc({1,2,3}, [5]),
?line bad_apply_fc({1,2,3,4}, [6]),
?line bad_apply_fc({1,2,3,4,5,6}, [7]),
?line bad_apply_fc({1,2,3,4,5}, [8]),
?line bad_apply_badarg({1,2}, [9]),
ok.
bad_apply_fc(Fun, Args) ->
Res = (catch apply(Fun, Args)),
erlang:garbage_collect(),
erlang:yield(),
case Res of
{'EXIT',{{badfun,Fun},_Where}} ->
ok = io:format("apply(~p, ~p) -> ~p\n", [Fun,Args,Res]);
Other ->
ok = io:format("apply(~p, ~p) -> ~p\n", [Fun,Args,Res]),
?t:fail({bad_result,Other})
end.
bad_apply_badarg(Fun, Args) ->
Res = (catch apply(Fun, Args)),
erlang:garbage_collect(),
erlang:yield(),
case Res of
{'EXIT',{{badfun,Fun},_Where}} ->
ok = io:format("apply(~p, ~p) -> ~p\n", [Fun,Args,Res]);
Other ->
ok = io:format("apply(~p, ~p) -> ~p\n", [Fun,Args,Res]),
?t:fail({bad_result, Other})
end.
bad_fun_call(doc) ->
"Try directly calling bad funs.";
bad_fun_call(suite) -> [];
bad_fun_call(Config) when is_list(Config) ->
?line bad_call_fc(42),
?line bad_call_fc(xx),
?line bad_call_fc({}),
?line bad_call_fc({1}),
?line bad_call_fc({1,2,3}),
?line bad_call_fc({1,2,3}),
?line bad_call_fc({1,2,3,4}),
?line bad_call_fc({1,2,3,4,5,6}),
?line bad_call_fc({1,2,3,4,5}),
?line bad_call_fc({1,2}),
ok.
bad_call_fc(Fun) ->
Args = [some,stupid,args],
Res = (catch Fun(Args)),
case Res of
{'EXIT',{{badfun,Fun},_Where}} ->
ok = io:format("~p(~p) -> ~p\n", [Fun,Args,Res]);
Other ->
ok = io:format("~p(~p) -> ~p\n", [Fun,Args,Res]),
?t:fail({bad_result,Other})
end.
%% Call and apply valid external funs with wrong number of arguments.
badarity(Config) when is_list(Config) ->
?line Fun = fun() -> ok end,
?line Stupid = {stupid,arguments},
?line Args = [some,{stupid,arguments},here],
%% Simple call.
?line Res = (catch Fun(some, Stupid, here)),
erlang:garbage_collect(),
erlang:yield(),
case Res of
{'EXIT',{{badarity,{Fun,Args}},[_|_]}} ->
?line ok = io:format("~p(~p) -> ~p\n", [Fun,Args,Res]);
_ ->
?line ok = io:format("~p(~p) -> ~p\n", [Fun,Args,Res]),
?line ?t:fail({bad_result,Res})
end,
%% Apply.
?line Res2 = (catch apply(Fun, Args)),
erlang:garbage_collect(),
erlang:yield(),
case Res2 of
{'EXIT',{{badarity,{Fun,Args}},[_|_]}} ->
?line ok = io:format("apply(~p, ~p) -> ~p\n", [Fun,Args,Res2]);
_ ->
?line ok = io:format("apply(~p, ~p) -> ~p\n", [Fun,Args,Res2]),
?line ?t:fail({bad_result,Res2})
end,
ok.
%% Call and apply valid external funs with wrong number of arguments.
ext_badarity(Config) when is_list(Config) ->
?line Fun = fun ?MODULE:nothing/0,
?line Stupid = {stupid,arguments},
?line Args = [some,{stupid,arguments},here],
%% Simple call.
?line Res = (catch Fun(some, Stupid, here)),
erlang:garbage_collect(),
erlang:yield(),
case Res of
{'EXIT',{{badarity,{Fun,Args}},_}} ->
?line ok = io:format("~p(~p) -> ~p\n", [Fun,Args,Res]);
_ ->
?line ok = io:format("~p(~p) -> ~p\n", [Fun,Args,Res]),
?line ?t:fail({bad_result,Res})
end,
%% Apply.
?line Res2 = (catch apply(Fun, Args)),
erlang:garbage_collect(),
erlang:yield(),
case Res2 of
{'EXIT',{{badarity,{Fun,Args}},_}} ->
?line ok = io:format("apply(~p, ~p) -> ~p\n", [Fun,Args,Res2]);
_ ->
?line ok = io:format("apply(~p, ~p) -> ~p\n", [Fun,Args,Res2]),
?line ?t:fail({bad_result,Res2})
end,
ok.
nothing() ->
ok.
otp_6061(suite) ->
[];
otp_6061(doc) ->
["Test handling of fun expression referring to uninterpreted code"];
otp_6061(Config) when is_list(Config) ->
?line OrigFlag = process_flag(trap_exit, true),
?line Self = self(),
?line Pid = spawn_link(fun() -> test_otp_6061(Self) end),
receive
working ->
?line ok;
not_working ->
?line ?t:fail(not_working);
{'EXIT', Pid, Reason} ->
?line ?t:fail({crash, Reason})
after
5000 ->
?line ?t:fail(timeout)
end,
?line process_flag(trap_exit, OrigFlag),
ok.
test_otp_6061(Starter) ->
Passes = [2],
PassesF = [fun() -> Starter ! not_working end,
fun() -> Starter ! working end,
fun() -> Starter ! not_working end],
lists:foreach(fun(P)->(lists:nth(P,PassesF))() end,Passes).
|
