Mercurial > hg > orthanc-stone

annotate UnitTestsSources/TestMessageBroker.cpp @ 1739:9ac2a65d4172

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upgrade to year 2021
author Sebastien Jodogne <s.jodogne@gmail.com>
date Wed, 06 Jan 2021 17:50:00 +0100
parents a1405ab3a91c
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1 /**
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2 * Stone of Orthanc
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3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
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4 * Department, University Hospital of Liege, Belgium
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5 * Copyright (C) 2017-2021 Osimis S.A., Belgium
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6 *
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7 * This program is free software: you can redistribute it and/or
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8 * modify it under the terms of the GNU Affero General Public License
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9 * as published by the Free Software Foundation, either version 3 of
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10 * the License, or (at your option) any later version.
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11 *
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12 * This program is distributed in the hope that it will be useful, but
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13 * WITHOUT ANY WARRANTY; without even the implied warranty of
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14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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15 * Affero General Public License for more details.
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16 *
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17 * You should have received a copy of the GNU Affero General Public License
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18 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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19 **/
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20
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21
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22 #include <gtest/gtest.h>
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23
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24 #include "../OrthancStone/Sources/Messages/IObservable.h"
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25 #include "../OrthancStone/Sources/Messages/ObserverBase.h"
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26
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27
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28 int testCounter = 0;
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29 namespace {
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30
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31 using namespace OrthancStone;
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32
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33
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34 class MyObservable : public IObservable
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35 {
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36 public:
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37 struct MyCustomMessage : public IMessage
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38 {
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39 ORTHANC_STONE_MESSAGE(__FILE__, __LINE__);
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40
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41 int payload_;
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42
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43 MyCustomMessage(int payload) :
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44 payload_(payload)
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45 {
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46 }
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47 };
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48 };
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49
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50 class MyObserver : public ObserverBase<MyObserver>
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51 {
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52 public:
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53 void HandleCompletedMessage(const MyObservable::MyCustomMessage& message)
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54 {
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55 testCounter += message.payload_;
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56 }
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57 };
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58 }
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60
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61 TEST(MessageBroker, TestPermanentConnectionSimpleUseCase)
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62 {
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63 MyObservable observable;
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64 boost::shared_ptr<MyObserver> observer(new MyObserver);
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65
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66 // create a permanent connection between an observable and an observer
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67 observer->Register<MyObservable::MyCustomMessage>(observable, &MyObserver::HandleCompletedMessage);
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68
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69 testCounter = 0;
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70 observable.BroadcastMessage(MyObservable::MyCustomMessage(12));
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71 ASSERT_EQ(12, testCounter);
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72
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73 // the connection is permanent; if we emit the same message again, the observer will be notified again
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74 testCounter = 0;
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75 observable.BroadcastMessage(MyObservable::MyCustomMessage(20));
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76 ASSERT_EQ(20, testCounter);
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77
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78 // Unregister the observer; make sure it's not called anymore
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79 observer.reset();
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80 testCounter = 0;
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81 observable.BroadcastMessage(MyObservable::MyCustomMessage(20));
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82 ASSERT_EQ(0, testCounter);
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83 }
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84
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85 TEST(MessageBroker, TestPermanentConnectionDeleteObserver)
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86 {
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87 MyObservable observable;
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88 boost::shared_ptr<MyObserver> observer(new MyObserver);
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90 // create a permanent connection between an observable and an observer
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91 observer->Register<MyObservable::MyCustomMessage>(observable, &MyObserver::HandleCompletedMessage);
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92
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93 testCounter = 0;
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94 observable.BroadcastMessage(MyObservable::MyCustomMessage(12));
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95 ASSERT_EQ(12, testCounter);
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96
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97 // delete the observer and check that the callback is not called anymore
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98 observer.reset();
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99
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100 // the connection is permanent; if we emit the same message again, the observer will be notified again
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101 testCounter = 0;
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102 observable.BroadcastMessage(MyObservable::MyCustomMessage(20));
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103 ASSERT_EQ(0, testCounter);
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104 }