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comparison OrthancStone/UnitTestsSources/TestMessageBroker.cpp @ 1512:244ad1e4e76a

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reorganization of folders
author Sebastien Jodogne <s.jodogne@gmail.com>
date Tue, 07 Jul 2020 16:21:02 +0200
parents UnitTestsSources/TestMessageBroker.cpp@30deba7bc8e2
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1511:9dfeee74c1e6 1512:244ad1e4e76a
1 /**
2 * Stone of Orthanc
3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
4 * Department, University Hospital of Liege, Belgium
5 * Copyright (C) 2017-2020 Osimis S.A., Belgium
6 *
7 * This program is free software: you can redistribute it and/or
8 * modify it under the terms of the GNU Affero General Public License
9 * as published by the Free Software Foundation, either version 3 of
10 * the License, or (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Affero General Public License for more details.
16 *
17 * You should have received a copy of the GNU Affero General Public License
18 * along with this program. If not, see <http://www.gnu.org/licenses/>.
19 **/
20
21
22 #include <gtest/gtest.h>
23
24 #include "../Sources/Messages/IObservable.h"
25 #include "../Sources/Messages/ObserverBase.h"
26
27
28 int testCounter = 0;
29 namespace {
30
31 using namespace OrthancStone;
32
33
34 class MyObservable : public IObservable
35 {
36 public:
37 struct MyCustomMessage : public IMessage
38 {
39 ORTHANC_STONE_MESSAGE(__FILE__, __LINE__);
40
41 int payload_;
42
43 MyCustomMessage(int payload) :
44 payload_(payload)
45 {
46 }
47 };
48 };
49
50 class MyObserver : public ObserverBase<MyObserver>
51 {
52 public:
53 void HandleCompletedMessage(const MyObservable::MyCustomMessage& message)
54 {
55 testCounter += message.payload_;
56 }
57 };
58 }
59
60
61 TEST(MessageBroker, TestPermanentConnectionSimpleUseCase)
62 {
63 MyObservable observable;
64 boost::shared_ptr<MyObserver> observer(new MyObserver);
65
66 // create a permanent connection between an observable and an observer
67 observer->Register<MyObservable::MyCustomMessage>(observable, &MyObserver::HandleCompletedMessage);
68
69 testCounter = 0;
70 observable.BroadcastMessage(MyObservable::MyCustomMessage(12));
71 ASSERT_EQ(12, testCounter);
72
73 // the connection is permanent; if we emit the same message again, the observer will be notified again
74 testCounter = 0;
75 observable.BroadcastMessage(MyObservable::MyCustomMessage(20));
76 ASSERT_EQ(20, testCounter);
77
78 // Unregister the observer; make sure it's not called anymore
79 observer.reset();
80 testCounter = 0;
81 observable.BroadcastMessage(MyObservable::MyCustomMessage(20));
82 ASSERT_EQ(0, testCounter);
83 }
84
85 TEST(MessageBroker, TestPermanentConnectionDeleteObserver)
86 {
87 MyObservable observable;
88 boost::shared_ptr<MyObserver> observer(new MyObserver);
89
90 // create a permanent connection between an observable and an observer
91 observer->Register<MyObservable::MyCustomMessage>(observable, &MyObserver::HandleCompletedMessage);
92
93 testCounter = 0;
94 observable.BroadcastMessage(MyObservable::MyCustomMessage(12));
95 ASSERT_EQ(12, testCounter);
96
97 // delete the observer and check that the callback is not called anymore
98 observer.reset();
99
100 // the connection is permanent; if we emit the same message again, the observer will be notified again
101 testCounter = 0;
102 observable.BroadcastMessage(MyObservable::MyCustomMessage(20));
103 ASSERT_EQ(0, testCounter);
104 }