svl/qa/unit/notify/test_SfxBroadcaster.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  */
   9
  10 #include <svl/SfxBroadcaster.hxx>
  11
  12 #include <svl/lstner.hxx>
  13 #include <svl/hint.hxx>
  14
  15 #include <cppunit/TestAssert.h>
  16 #include <cppunit/TestFixture.h>
  17 #include <cppunit/extensions/HelperMacros.h>
  18 #include <cppunit/plugin/TestPlugIn.h>
  19
  20 class SfxBroadcasterTest : public CppUnit::TestFixture
  21 {
  22     void AddingListenersIncreasesCount();
  23     void RemovingListenersDecreasesCount();
  24     void HintsAreNotForwardedToRemovedListeners();
  25     void SameListenerCanBeAddedMoreThanOnce();
  26     void StoppingListeningAffectsOnlyFirstOfIdenticalListeners();
  27
  28     // Adds code needed to register the test suite
  29     CPPUNIT_TEST_SUITE(SfxBroadcasterTest);
  30     CPPUNIT_TEST(AddingListenersIncreasesCount);
  31     CPPUNIT_TEST(RemovingListenersDecreasesCount);
  32     CPPUNIT_TEST(HintsAreNotForwardedToRemovedListeners);
  33     CPPUNIT_TEST(SameListenerCanBeAddedMoreThanOnce);
  34     CPPUNIT_TEST(StoppingListeningAffectsOnlyFirstOfIdenticalListeners);
  35
  36     CPPUNIT_TEST_SUITE_END();
  37 };
  38
  39 namespace
  40 {
  41 class MockedSfxListener : public SfxListener
  42 {
  43 public:
  44     MockedSfxListener()
  45         : mNotifyWasCalled(false)
  46     {
  47     }
  48
  49     void Notify(SfxBroadcaster&, const SfxHint&) override { mNotifyWasCalled = true; }
  50
  51     bool NotifyWasCalled() const { return mNotifyWasCalled; }
  52
  53 private:
  54     bool mNotifyWasCalled;
  55 };
  56 }
  57
  58 void SfxBroadcasterTest::AddingListenersIncreasesCount()
  59 {
  60     SfxBroadcaster sb;
  61     MockedSfxListener sl;
  62
  63     CPPUNIT_ASSERT_EQUAL(size_t(0), sb.GetListenerCount());
  64
  65     sl.StartListening(sb, DuplicateHandling::Prevent);
  66     CPPUNIT_ASSERT_EQUAL(size_t(1), sb.GetListenerCount());
  67 }
  68
  69 void SfxBroadcasterTest::RemovingListenersDecreasesCount()
  70 {
  71     SfxBroadcaster sb;
  72     MockedSfxListener sl;
  73
  74     CPPUNIT_ASSERT_EQUAL(size_t(0), sb.GetListenerCount());
  75     sl.StartListening(sb, DuplicateHandling::Prevent);
  76     CPPUNIT_ASSERT_EQUAL(size_t(1), sb.GetListenerCount());
  77     sl.EndListening(sb, true);
  78     CPPUNIT_ASSERT_EQUAL(size_t(0), sb.GetListenerCount());
  79 }
  80
  81 void SfxBroadcasterTest::HintsAreNotForwardedToRemovedListeners()
  82 {
  83     SfxBroadcaster sb;
  84     MockedSfxListener sl1;
  85     MockedSfxListener sl2;
  86     SfxHint hint;
  87
  88     sl1.StartListening(sb, DuplicateHandling::Prevent);
  89     sl2.StartListening(sb, DuplicateHandling::Prevent);
  90     CPPUNIT_ASSERT_EQUAL_MESSAGE("All listeners were added.", size_t(2), sb.GetListenerCount());
  91     sl1.EndListening(sb, true);
  92     sb.Forward(sb, hint);
  93     CPPUNIT_ASSERT_EQUAL(true, sl2.NotifyWasCalled());
  94     CPPUNIT_ASSERT_EQUAL(false, sl1.NotifyWasCalled());
  95 }
  96
  97 void SfxBroadcasterTest::SameListenerCanBeAddedMoreThanOnce()
  98 {
  99     MockedSfxListener sl;
 100     SfxBroadcaster sb;
 101     sb.AddListener(sl);
 102     sb.AddListener(sl);
 103     CPPUNIT_ASSERT_EQUAL(size_t(2), sb.GetListenerCount());
 104 }
 105
 106 void SfxBroadcasterTest::StoppingListeningAffectsOnlyFirstOfIdenticalListeners()
 107 {
 108     MockedSfxListener sl;
 109     SfxBroadcaster sb;
 110     sb.AddListener(sl);
 111     sb.AddListener(sl);
 112     sb.RemoveListener(sl);
 113     CPPUNIT_ASSERT_EQUAL(size_t(1), sb.GetListenerCount());
 114 }
 115
 116 CPPUNIT_TEST_SUITE_REGISTRATION(SfxBroadcasterTest);
 117
 118 CPPUNIT_PLUGIN_IMPLEMENT();