improvements to wxWeakRef and related classes
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@51187 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Vadim Zeitlin
247
tests/weakref/evtconnection.cpp
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247
tests/weakref/evtconnection.cpp
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///////////////////////////////////////////////////////////////////////////////
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// Name: tests/weakref/evtconnection.cpp
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// Purpose: wxWeakRef<T> unit test
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// Author: Arne Steinarson
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// Created: 2008-01-10
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// RCS-ID: $Id$
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// Copyright: (c) 2007 Arne Steinarson
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///////////////////////////////////////////////////////////////////////////////
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// ----------------------------------------------------------------------------
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// headers
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// ----------------------------------------------------------------------------
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#include "testprec.h"
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#ifdef __BORLANDC__
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#pragma hdrstop
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#endif
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#ifndef WX_PRECOMP
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#include "wx/wx.h"
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#endif // WX_PRECOMP
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#include "wx/event.h"
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#include "wx/weakref.h"
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static int gs_value = 0; // Increased by 1 by first object and 0x10000 by 2nd object
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static wxObject *gs_psrc1;
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static wxObject *gs_psrc2;
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// We need some event types
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const wxEventType wxEVT_TEST = wxNewEventType(),
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wxEVT_TEST1 = wxNewEventType(),
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wxEVT_TEST2 = wxNewEventType();
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class wxTestEvent : public wxEvent
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{
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public:
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wxTestEvent(wxEventType type = wxEVT_TEST) : wxEvent(0, type) { }
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virtual wxEvent *Clone() const { return new wxTestEvent(GetEventType()); }
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};
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class wxTestSink : public wxEvtHandler
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{
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public:
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void OnTestEvent(wxEvent& evt)
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{
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if ( evt.GetEventObject() == gs_psrc1 )
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gs_value += 1;
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else if ( evt.GetEventObject() == gs_psrc2 )
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gs_value += 0x10000;
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}
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void OnTestEvent1(wxEvent& )
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{
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gs_value += 0x00100;
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}
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void OnTestEvent2(wxEvent&)
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{
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gs_value += 0x01000000;
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}
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};
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// --------------------------------------------------------------------------
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// test class
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// --------------------------------------------------------------------------
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class EvtConnectionTestCase : public CppUnit::TestCase
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{
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public:
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EvtConnectionTestCase() {}
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private:
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CPPUNIT_TEST_SUITE( EvtConnectionTestCase );
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CPPUNIT_TEST( SinkTest );
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CPPUNIT_TEST( SourceDestroyTest );
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CPPUNIT_TEST( MultiConnectionTest );
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CPPUNIT_TEST_SUITE_END();
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void SinkTest();
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void SourceDestroyTest();
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void MultiConnectionTest();
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DECLARE_NO_COPY_CLASS(EvtConnectionTestCase)
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};
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// register in the unnamed registry so that these tests are run by default
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CPPUNIT_TEST_SUITE_REGISTRATION( EvtConnectionTestCase );
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// also include in it's own registry so that these tests can be run alone
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CPPUNIT_TEST_SUITE_NAMED_REGISTRATION( EvtConnectionTestCase, "EvtConnectionTestCase" );
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// Helpers
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void DoConnect( wxEvtHandler& eh1, wxEvtHandler& eh2, wxTestSink& ts ){
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eh1.Connect(wxEVT_TEST, (wxObjectEventFunction)&wxTestSink::OnTestEvent,
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NULL, &ts);
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eh2.Connect(wxEVT_TEST, (wxObjectEventFunction) &wxTestSink::OnTestEvent,
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NULL, &ts);
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}
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void DoDisconnect( wxEvtHandler& eh1, wxEvtHandler& eh2, wxTestSink& ts ){
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eh1.Disconnect(wxEVT_TEST, (wxObjectEventFunction) &wxTestSink::OnTestEvent,
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NULL, &ts);
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eh2.Disconnect(wxEVT_TEST, (wxObjectEventFunction) &wxTestSink::OnTestEvent,
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NULL, &ts);
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}
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void EvtConnectionTestCase::SinkTest()
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{
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// Let the sink be destroyed before the sources
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// An event used below
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wxTestEvent evt;
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// Connect two event handlers to one sink
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wxEvtHandler eh1, eh2;
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gs_psrc1 = &eh1;
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gs_psrc2 = &eh2;
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{
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wxTestSink ts;
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CPPUNIT_ASSERT( !ts.GetFirst() );
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DoConnect(eh1, eh2, ts);
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DoDisconnect(eh1, eh2, ts);
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DoConnect(eh1, eh2, ts);
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// Fire events
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evt.SetEventObject(&eh1);
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eh1.ProcessEvent(evt);
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evt.SetEventObject(&eh2);
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eh2.ProcessEvent(evt);
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// Make sure they were processed correctly
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CPPUNIT_ASSERT_EQUAL( 0x00010001, gs_value );
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}
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// Fire events again, should be no sink connected now
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gs_value = 0;
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evt.SetEventObject(&eh1);
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eh1.ProcessEvent( evt );
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evt.SetEventObject(&eh2);
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eh2.ProcessEvent( evt );
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// Make sure no processing happened
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CPPUNIT_ASSERT_EQUAL( 0, gs_value );
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}
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void EvtConnectionTestCase::SourceDestroyTest()
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{
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// Let the sources be destroyed before the sink
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wxTestSink ts;
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wxTestEvent evt;
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{
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wxEvtHandler eh1;
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{
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CPPUNIT_ASSERT( !ts.GetFirst() );
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// Connect two event handlers to one sink
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wxEvtHandler eh2;
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gs_psrc1 = &eh1;
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gs_psrc2 = &eh2;
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DoConnect( eh1, eh2, ts );
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// Fire events
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gs_value = 0;
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evt.SetEventObject(&eh1);
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eh1.ProcessEvent( evt );
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evt.SetEventObject(&eh2);
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eh2.ProcessEvent( evt );
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// Make sure they were processed correctly
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CPPUNIT_ASSERT_EQUAL( 0x00010001, gs_value );
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}
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gs_value = 0;
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evt.SetEventObject(&eh1);
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eh1.ProcessEvent( evt );
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// Make sure still connected
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CPPUNIT_ASSERT_EQUAL( 0x00000001, gs_value );
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}
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CPPUNIT_ASSERT( !ts.GetFirst() );
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}
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void EvtConnectionTestCase::MultiConnectionTest()
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{
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// events used below
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wxTestEvent evt;
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wxTestEvent evt1(wxEVT_TEST1);
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wxTestEvent evt2(wxEVT_TEST2);
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// One source
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wxEvtHandler eh1;
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evt.SetEventObject(&eh1);
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gs_psrc1 = NULL;
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gs_psrc2 = &eh1;
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{
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// ...and one sink
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wxTestSink ts;
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eh1.Connect(wxEVT_TEST, (wxObjectEventFunction)&wxTestSink::OnTestEvent,
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NULL, &ts);
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eh1.Connect(wxEVT_TEST1, (wxObjectEventFunction)&wxTestSink::OnTestEvent1,
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NULL, &ts);
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eh1.Connect(wxEVT_TEST2, (wxObjectEventFunction)&wxTestSink::OnTestEvent2,
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NULL, &ts);
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// Generate events
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gs_value = 0;
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eh1.ProcessEvent(evt);
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eh1.ProcessEvent(evt1);
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eh1.ProcessEvent(evt2);
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CPPUNIT_ASSERT( gs_value==0x01010100 );
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{
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// Declare weak references to the objects (using same list)
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wxEvtHandlerRef re(&eh1), rs(&ts);
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}
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// And now destroyed
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eh1.Disconnect(wxEVT_TEST, (wxObjectEventFunction)&wxTestSink::OnTestEvent,
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NULL, &ts);
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eh1.ProcessEvent(evt);
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eh1.ProcessEvent(evt1);
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eh1.ProcessEvent(evt2);
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CPPUNIT_ASSERT_EQUAL( 0x02010200, gs_value );
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}
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// No connection should be left now
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gs_value = 0;
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eh1.ProcessEvent(evt);
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eh1.ProcessEvent(evt1);
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eh1.ProcessEvent(evt2);
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// Nothing should have been done
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CPPUNIT_ASSERT_EQUAL( 0, gs_value );
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}
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