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
|
(******************************************************************************
* Core *
* *
* Copyright (C) 2008- Jane Street Holding, LLC *
* Contact: opensource@janestreet.com *
* WWW: http://www.janestreet.com/ocaml *
* *
* *
* This library is free software; you can redistribute it and/or *
* modify it under the terms of the GNU Lesser General Public *
* License as published by the Free Software Foundation; either *
* version 2 of the License, or (at your option) any later version. *
* *
* This library is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU *
* Lesser General Public License for more details. *
* *
* You should have received a copy of the GNU Lesser General Public *
* License along with this library; if not, write to the Free Software *
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA *
* *
******************************************************************************)
open Core.Std
open OUnit;;
let raises_exception f =
try ignore (f ()); false
with _ -> true
let null_handler _ _ = ()
let exception_handler _ _ = failwith "printing this exception does not indicate a bug"
let test =
"timer" >:::
[ "abusive user" >::
(fun () ->
"add" @?
begin
let timer = Timer.create () in
raises_exception
(fun () -> Timer.add timer null_handler (Time.Span.of_sec (-1.)))
end;
"remove twice" @?
begin
let timer = Timer.create () in
let ev = Timer.add timer null_handler (Time.Span.of_sec 0.1) in
Timer.remove ev;
Timer.remove ev;
true
end;
"malicious handler" @?
begin
let timer = Timer.create () in
let _ev = Timer.add timer exception_handler (Time.Span.of_sec 0.1) in
Time.pause (Time.Span.of_sec 0.3);
true
end;
);
"ordering of events" >::
(fun () ->
let timer = Timer.create () in
let delays = Array.init 100 ~f:(fun i -> (float i)/.100.) in
Array.permute delays;
let queue = Squeue.create 100 in
let add_handler _ time = Squeue.push queue (Time.to_float time) in
Array.iter delays
~f:(fun delay ->
ignore (Timer.add timer add_handler (Time.Span.of_sec delay))
);
Time.pause (Time.Span.of_sec 1.2);
let last = ref (-1.) in
while Squeue.length queue > 0 do
let next = Squeue.pop queue in
"in order" @? (next >=. !last);
last := next
done
);
"deactivation" >::
(fun () ->
let timer = Timer.create () in
"initially activated" @? Timer.is_activated timer;
let dont_call_handler _ _ = ("handler called stupidly" @? false) in
ignore (Timer.add timer dont_call_handler (Time.Span.of_sec 0.25));
Timer.deactivate timer;
"can be deactivated" @? not (Timer.is_activated timer);
Time.pause (Time.Span.of_sec 0.5)
)
]
|
