Mercurial > hg > orthanc-stone
annotate OrthancStone/UnitTestsSources/TestMessageBroker.cpp @ 1925:a7a77488ddb1
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author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Wed, 23 Mar 2022 14:21:22 +0100 |
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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) 2017-2022 Osimis S.A., Belgium |
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6 * Copyright (C) 2021-2022 Sebastien Jodogne, ICTEAM UCLouvain, Belgium |
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7 * |
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8 * This program is free software: you can redistribute it and/or |
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9 * modify it under the terms of the GNU Lesser General Public License |
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10 * as published by the Free Software Foundation, either version 3 of |
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11 * the License, or (at your option) any later version. |
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12 * |
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13 * This program is distributed in the hope that it will be useful, but |
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14 * WITHOUT ANY WARRANTY; without even the implied warranty of |
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15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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16 * Lesser General Public License for more details. |
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17 * |
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18 * You should have received a copy of the GNU Lesser General Public |
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19 * License along with this program. If not, see |
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20 * <http://www.gnu.org/licenses/>. |
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21 **/ |
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23 | |
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24 #include <gtest/gtest.h> |
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25 |
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26 #include "../Sources/Messages/IObservable.h" |
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27 #include "../Sources/Messages/ObserverBase.h" |
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28 |
251 | 29 |
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30 int testCounter = 0; |
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31 namespace { |
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32 |
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33 using namespace OrthancStone; |
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34 |
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35 |
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36 class MyObservable : public IObservable |
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37 { |
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38 public: |
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39 struct MyCustomMessage : public IMessage |
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40 { |
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41 ORTHANC_STONE_MESSAGE(__FILE__, __LINE__); |
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42 |
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43 int payload_; |
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44 |
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45 MyCustomMessage(int payload) : |
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46 payload_(payload) |
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47 { |
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48 } |
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49 }; |
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50 }; |
267 | 51 |
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52 class MyObserver : public ObserverBase<MyObserver> |
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53 { |
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54 public: |
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55 void HandleCompletedMessage(const MyObservable::MyCustomMessage& message) |
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56 { |
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57 testCounter += message.payload_; |
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58 } |
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59 }; |
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60 } |
251 | 61 |
62 | |
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63 TEST(MessageBroker, TestPermanentConnectionSimpleUseCase) |
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64 { |
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65 MyObservable observable; |
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66 boost::shared_ptr<MyObserver> observer(new MyObserver); |
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67 |
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68 // create a permanent connection between an observable and an observer |
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69 observer->Register<MyObservable::MyCustomMessage>(observable, &MyObserver::HandleCompletedMessage); |
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70 |
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71 testCounter = 0; |
624 | 72 observable.BroadcastMessage(MyObservable::MyCustomMessage(12)); |
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73 ASSERT_EQ(12, testCounter); |
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74 |
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75 // the connection is permanent; if we emit the same message again, the observer will be notified again |
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76 testCounter = 0; |
624 | 77 observable.BroadcastMessage(MyObservable::MyCustomMessage(20)); |
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78 ASSERT_EQ(20, testCounter); |
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79 |
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80 // Unregister the observer; make sure it's not called anymore |
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81 observer.reset(); |
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82 testCounter = 0; |
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84 ASSERT_EQ(0, testCounter); |
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85 } |
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86 |
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87 TEST(MessageBroker, TestPermanentConnectionDeleteObserver) |
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88 { |
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89 MyObservable observable; |
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90 boost::shared_ptr<MyObserver> observer(new MyObserver); |
251 | 91 |
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92 // create a permanent connection between an observable and an observer |
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93 observer->Register<MyObservable::MyCustomMessage>(observable, &MyObserver::HandleCompletedMessage); |
267 | 94 |
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95 testCounter = 0; |
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97 ASSERT_EQ(12, testCounter); |
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98 |
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99 // delete the observer and check that the callback is not called anymore |
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100 observer.reset(); |
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102 // the connection is permanent; if we emit the same message again, the observer will be notified again |
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103 testCounter = 0; |
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105 ASSERT_EQ(0, testCounter); |
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106 } |