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///////////////////////////////////////////////////////////////////////////////
// Name: tests/weakref/evtconnection.cpp
// Purpose: wxWeakRef<T> unit test
// Author: Arne Steinarson
// Created: 2008-01-10
// Copyright: (c) 2007 Arne Steinarson
///////////////////////////////////////////////////////////////////////////////
// ----------------------------------------------------------------------------
// headers
// ----------------------------------------------------------------------------
#include "testprec.h"
#ifdef __BORLANDC__
#pragma hdrstop
#endif
#ifndef WX_PRECOMP
#include "wx/wx.h"
#endif // WX_PRECOMP
#include "wx/event.h"
#include "wx/weakref.h"
static int gs_value = 0; // Increased by 1 by first object and 0x10000 by 2nd object
static wxObject *gs_psrc1;
static wxObject *gs_psrc2;
// We need some event types
const wxEventType wxEVT_TEST = wxNewEventType(),
wxEVT_TEST1 = wxNewEventType(),
wxEVT_TEST2 = wxNewEventType();
class wxTestEvent : public wxEvent
{
public:
wxTestEvent(wxEventType type = wxEVT_TEST) : wxEvent(0, type) { }
virtual wxEvent *Clone() const { return new wxTestEvent(GetEventType()); }
};
class wxTestSink : public wxEvtHandler
{
public:
void OnTestEvent(wxEvent& evt)
{
if ( evt.GetEventObject() == gs_psrc1 )
gs_value += 1;
else if ( evt.GetEventObject() == gs_psrc2 )
gs_value += 0x10000;
}
void OnTestEvent1(wxEvent& )
{
gs_value += 0x00100;
}
void OnTestEvent2(wxEvent&)
{
gs_value += 0x01000000;
}
};
// --------------------------------------------------------------------------
// test class
// --------------------------------------------------------------------------
class EvtConnectionTestCase : public CppUnit::TestCase
{
public:
EvtConnectionTestCase() {}
private:
CPPUNIT_TEST_SUITE( EvtConnectionTestCase );
CPPUNIT_TEST( SinkTest );
CPPUNIT_TEST( SourceDestroyTest );
CPPUNIT_TEST( MultiConnectionTest );
CPPUNIT_TEST_SUITE_END();
void SinkTest();
void SourceDestroyTest();
void MultiConnectionTest();
DECLARE_NO_COPY_CLASS(EvtConnectionTestCase)
};
// register in the unnamed registry so that these tests are run by default
CPPUNIT_TEST_SUITE_REGISTRATION( EvtConnectionTestCase );
// also include in its own registry so that these tests can be run alone
CPPUNIT_TEST_SUITE_NAMED_REGISTRATION( EvtConnectionTestCase, "EvtConnectionTestCase" );
// Helpers
void DoConnect( wxEvtHandler& eh1, wxEvtHandler& eh2, wxTestSink& ts ){
eh1.Connect(wxEVT_TEST, (wxObjectEventFunction)&wxTestSink::OnTestEvent,
NULL, &ts);
eh2.Connect(wxEVT_TEST, (wxObjectEventFunction) &wxTestSink::OnTestEvent,
NULL, &ts);
}
void DoDisconnect( wxEvtHandler& eh1, wxEvtHandler& eh2, wxTestSink& ts ){
eh1.Disconnect(wxEVT_TEST, (wxObjectEventFunction) &wxTestSink::OnTestEvent,
NULL, &ts);
eh2.Disconnect(wxEVT_TEST, (wxObjectEventFunction) &wxTestSink::OnTestEvent,
NULL, &ts);
}
void EvtConnectionTestCase::SinkTest()
{
// Let the sink be destroyed before the sources
// An event used below
wxTestEvent evt;
// Connect two event handlers to one sink
wxEvtHandler eh1, eh2;
gs_psrc1 = &eh1;
gs_psrc2 = &eh2;
{
wxTestSink ts;
CPPUNIT_ASSERT( !ts.GetFirst() );
DoConnect(eh1, eh2, ts);
DoDisconnect(eh1, eh2, ts);
DoConnect(eh1, eh2, ts);
// Fire events
evt.SetEventObject(&eh1);
eh1.ProcessEvent(evt);
evt.SetEventObject(&eh2);
eh2.ProcessEvent(evt);
// Make sure they were processed correctly
CPPUNIT_ASSERT_EQUAL( 0x00010001, gs_value );
}
// Fire events again, should be no sink connected now
gs_value = 0;
evt.SetEventObject(&eh1);
eh1.ProcessEvent( evt );
evt.SetEventObject(&eh2);
eh2.ProcessEvent( evt );
// Make sure no processing happened
CPPUNIT_ASSERT_EQUAL( 0, gs_value );
}
void EvtConnectionTestCase::SourceDestroyTest()
{
// Let the sources be destroyed before the sink
wxTestSink ts;
wxTestEvent evt;
{
wxEvtHandler eh1;
{
CPPUNIT_ASSERT( !ts.GetFirst() );
// Connect two event handlers to one sink
wxEvtHandler eh2;
gs_psrc1 = &eh1;
gs_psrc2 = &eh2;
DoConnect( eh1, eh2, ts );
// Fire events
gs_value = 0;
evt.SetEventObject(&eh1);
eh1.ProcessEvent( evt );
evt.SetEventObject(&eh2);
eh2.ProcessEvent( evt );
// Make sure they were processed correctly
CPPUNIT_ASSERT_EQUAL( 0x00010001, gs_value );
}
gs_value = 0;
evt.SetEventObject(&eh1);
eh1.ProcessEvent( evt );
// Make sure still connected
CPPUNIT_ASSERT_EQUAL( 0x00000001, gs_value );
}
CPPUNIT_ASSERT( !ts.GetFirst() );
}
void EvtConnectionTestCase::MultiConnectionTest()
{
// events used below
wxTestEvent evt;
wxTestEvent evt1(wxEVT_TEST1);
wxTestEvent evt2(wxEVT_TEST2);
// One source
wxEvtHandler eh1;
evt.SetEventObject(&eh1);
gs_psrc1 = NULL;
gs_psrc2 = &eh1;
{
// ...and one sink
wxTestSink ts;
eh1.Connect(wxEVT_TEST, (wxObjectEventFunction)&wxTestSink::OnTestEvent,
NULL, &ts);
eh1.Connect(wxEVT_TEST1, (wxObjectEventFunction)&wxTestSink::OnTestEvent1,
NULL, &ts);
eh1.Connect(wxEVT_TEST2, (wxObjectEventFunction)&wxTestSink::OnTestEvent2,
NULL, &ts);
// Generate events
gs_value = 0;
eh1.ProcessEvent(evt);
eh1.ProcessEvent(evt1);
eh1.ProcessEvent(evt2);
CPPUNIT_ASSERT( gs_value==0x01010100 );
{
// Declare weak references to the objects (using same list)
wxEvtHandlerRef re(&eh1), rs(&ts);
}
// And now destroyed
eh1.Disconnect(wxEVT_TEST, (wxObjectEventFunction)&wxTestSink::OnTestEvent,
NULL, &ts);
eh1.ProcessEvent(evt);
eh1.ProcessEvent(evt1);
eh1.ProcessEvent(evt2);
CPPUNIT_ASSERT_EQUAL( 0x02010200, gs_value );
}
// No connection should be left now
gs_value = 0;
eh1.ProcessEvent(evt);
eh1.ProcessEvent(evt1);
eh1.ProcessEvent(evt2);
// Nothing should have been done
CPPUNIT_ASSERT_EQUAL( 0, gs_value );
}
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