tests/events/propagation.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        tests/events/propagation.cpp
   3 // Purpose:     Test events propagation
   4 // Author:      Vadim Zeitlin
   5 // Created:     2009-01-16
   6 // RCS-ID:      $Id$
   7 // Copyright:   (c) 2009 Vadim Zeitlin <vadim@wxwidgets.org>
   8 ///////////////////////////////////////////////////////////////////////////////
   9
  10 // ----------------------------------------------------------------------------
  11 // headers
  12 // ----------------------------------------------------------------------------
  13
  14 #include "testprec.h"
  15
  16 #ifdef __BORLANDC__
  17     #pragma hdrstop
  18 #endif
  19
  20 #ifndef WX_PRECOMP
  21     #include "wx/app.h"
  22     #include "wx/event.h"
  23     #include "wx/scrolwin.h"
  24     #include "wx/window.h"
  25 #endif // WX_PRECOMP
  26
  27 #include "wx/docmdi.h"
  28 #include "wx/frame.h"
  29 #include "wx/menu.h"
  30 #include "wx/scopedptr.h"
  31 #include "wx/scopeguard.h"
  32 #include "wx/uiaction.h"
  33
  34 // FIXME: Currently under OS X testing paint event doesn't work because neither
  35 //        calling Refresh()+Update() nor even sending wxPaintEvent directly to
  36 //        the window doesn't result in calls to its event handlers, so disable
  37 //        some tests there. But this should be fixed and the tests reenabled
  38 //        because wxPaintEvent propagation in wxScrolledWindow is a perfect
  39 //        example of fragile code that could be broken under OS X.
  40 #ifndef __WXOSX__
  41     #define CAN_TEST_PAINT_EVENTS
  42 #endif
  43
  44 namespace
  45 {
  46
  47 // this string will record the execution of all handlers
  48 wxString g_str;
  49
  50 // a custom event
  51 wxDEFINE_EVENT(TEST_EVT, wxCommandEvent);
  52
  53 // a custom event handler tracing the propagation of the events of the
  54 // specified types
  55 template <class Event>
  56 class TestEvtHandlerBase : public wxEvtHandler
  57 {
  58 public:
  59     TestEvtHandlerBase(wxEventType evtType, char tag)
  60         : m_evtType(evtType),
  61           m_tag(tag)
  62     {
  63         Connect(evtType,
  64                 static_cast<wxEventFunction>(&TestEvtHandlerBase::OnTest));
  65     }
  66
  67     // override ProcessEvent() to confirm that it is called for all event
  68     // handlers in the chain
  69     virtual bool ProcessEvent(wxEvent& event)
  70     {
  71         if ( event.GetEventType() == m_evtType )
  72             g_str += 'o'; // "o" == "overridden"
  73
  74         return wxEvtHandler::ProcessEvent(event);
  75     }
  76
  77 private:
  78     void OnTest(wxEvent& event)
  79     {
  80         g_str += m_tag;
  81
  82         event.Skip();
  83     }
  84
  85     const wxEventType m_evtType;
  86     const char m_tag;
  87
  88     wxDECLARE_NO_COPY_TEMPLATE_CLASS(TestEvtHandlerBase, Event);
  89 };
  90
  91 struct TestEvtHandler : TestEvtHandlerBase<wxCommandEvent>
  92 {
  93     TestEvtHandler(char tag)
  94         : TestEvtHandlerBase<wxCommandEvent>(TEST_EVT, tag)
  95     {
  96     }
  97 };
  98
  99 struct TestMenuEvtHandler : TestEvtHandlerBase<wxCommandEvent>
 100 {
 101     TestMenuEvtHandler(char tag)
 102         : TestEvtHandlerBase<wxCommandEvent>(wxEVT_MENU, tag)
 103     {
 104     }
 105 };
 106
 107 struct TestPaintEvtHandler : TestEvtHandlerBase<wxPaintEvent>
 108 {
 109     TestPaintEvtHandler(char tag)
 110         : TestEvtHandlerBase<wxPaintEvent>(wxEVT_PAINT, tag)
 111     {
 112     }
 113 };
 114
 115 // Another custom event handler, suitable for use with Connect().
 116 struct TestEvtSink : wxEvtHandler
 117 {
 118     TestEvtSink(char tag)
 119         : m_tag(tag)
 120     {
 121     }
 122
 123     void Handle(wxEvent& event)
 124     {
 125         g_str += m_tag;
 126
 127         event.Skip();
 128     }
 129
 130     const char m_tag;
 131
 132     wxDECLARE_NO_COPY_CLASS(TestEvtSink);
 133 };
 134
 135 // a window handling the test event
 136 class TestWindow : public wxWindow
 137 {
 138 public:
 139     TestWindow(wxWindow *parent, char tag)
 140         : wxWindow(parent, wxID_ANY),
 141           m_tag(tag)
 142     {
 143         Connect(TEST_EVT, wxCommandEventHandler(TestWindow::OnTest));
 144     }
 145
 146 private:
 147     void OnTest(wxCommandEvent& event)
 148     {
 149         g_str += m_tag;
 150
 151         event.Skip();
 152     }
 153
 154     const char m_tag;
 155
 156     DECLARE_NO_COPY_CLASS(TestWindow)
 157 };
 158
 159 // a scroll window handling paint event: we want to have a special test case
 160 // for this because the event propagation is complicated even further than
 161 // usual here by the presence of wxScrollHelperEvtHandler in the event handlers
 162 // chain and the fact that OnDraw() virtual method must be called if EVT_PAINT
 163 // is not handled
 164 class TestScrollWindow : public wxScrolledWindow
 165 {
 166 public:
 167     TestScrollWindow(wxWindow *parent)
 168         : wxScrolledWindow(parent, wxID_ANY)
 169     {
 170         Connect(wxEVT_PAINT, wxPaintEventHandler(TestScrollWindow::OnPaint));
 171     }
 172
 173     void GeneratePaintEvent()
 174     {
 175 #ifdef __WXGTK__
 176         // We need to map the window, otherwise we're not going to get any
 177         // paint events for it.
 178         wxYield();
 179
 180         // Ignore events generated during the initial mapping.
 181         g_str.clear();
 182 #endif // __WXGTK__
 183
 184         Refresh();
 185         Update();
 186     }
 187
 188     virtual void OnDraw(wxDC& WXUNUSED(dc))
 189     {
 190         g_str += 'D';   // draw
 191     }
 192
 193 private:
 194     void OnPaint(wxPaintEvent& event)
 195     {
 196         g_str += 'P';   // paint
 197         event.Skip();
 198     }
 199
 200     wxDECLARE_NO_COPY_CLASS(TestScrollWindow);
 201 };
 202
 203 int DoFilterEvent(wxEvent& event)
 204 {
 205     if ( event.GetEventType() == TEST_EVT ||
 206             event.GetEventType() == wxEVT_MENU )
 207         g_str += 'a';
 208
 209     return -1;
 210 }
 211
 212 bool DoProcessEvent(wxEvent& event)
 213 {
 214     if ( event.GetEventType() == TEST_EVT ||
 215             event.GetEventType() == wxEVT_MENU )
 216         g_str += 'A';
 217
 218     return false;
 219 }
 220
 221 } // anonymous namespace
 222
 223 // --------------------------------------------------------------------------
 224 // test class
 225 // --------------------------------------------------------------------------
 226
 227 class EventPropagationTestCase : public CppUnit::TestCase
 228 {
 229 public:
 230     EventPropagationTestCase() {}
 231
 232     virtual void setUp();
 233     virtual void tearDown();
 234
 235 private:
 236     CPPUNIT_TEST_SUITE( EventPropagationTestCase );
 237         CPPUNIT_TEST( OneHandler );
 238         CPPUNIT_TEST( TwoHandlers );
 239         CPPUNIT_TEST( WindowWithoutHandler );
 240         CPPUNIT_TEST( WindowWithHandler );
 241         CPPUNIT_TEST( ForwardEvent );
 242         CPPUNIT_TEST( ScrollWindowWithoutHandler );
 243         CPPUNIT_TEST( ScrollWindowWithHandler );
 244         CPPUNIT_TEST( MenuEvent );
 245         CPPUNIT_TEST( DocView );
 246         WXUISIM_TEST( ContextMenuEvent );
 247     CPPUNIT_TEST_SUITE_END();
 248
 249     void OneHandler();
 250     void TwoHandlers();
 251     void WindowWithoutHandler();
 252     void WindowWithHandler();
 253     void ForwardEvent();
 254     void ScrollWindowWithoutHandler();
 255     void ScrollWindowWithHandler();
 256     void MenuEvent();
 257     void DocView();
 258     void ContextMenuEvent();
 259
 260     DECLARE_NO_COPY_CLASS(EventPropagationTestCase)
 261 };
 262
 263 // register in the unnamed registry so that these tests are run by default
 264 CPPUNIT_TEST_SUITE_REGISTRATION( EventPropagationTestCase );
 265
 266 // also include in its own registry so that these tests can be run alone
 267 CPPUNIT_TEST_SUITE_NAMED_REGISTRATION( EventPropagationTestCase, "EventPropagationTestCase" );
 268
 269 void EventPropagationTestCase::setUp()
 270 {
 271     SetFilterEventFunc(DoFilterEvent);
 272     SetProcessEventFunc(DoProcessEvent);
 273
 274     g_str.clear();
 275 }
 276
 277 void EventPropagationTestCase::tearDown()
 278 {
 279     SetFilterEventFunc(NULL);
 280     SetProcessEventFunc(NULL);
 281 }
 282
 283 void EventPropagationTestCase::OneHandler()
 284 {
 285     wxCommandEvent event(TEST_EVT);
 286     TestEvtHandler h1('1');
 287     h1.ProcessEvent(event);
 288     CPPUNIT_ASSERT_EQUAL( "oa1A", g_str );
 289 }
 290
 291 void EventPropagationTestCase::TwoHandlers()
 292 {
 293     wxCommandEvent event(TEST_EVT);
 294     TestEvtHandler h1('1');
 295     TestEvtHandler h2('2');
 296     h1.SetNextHandler(&h2);
 297     h2.SetPreviousHandler(&h1);
 298     h1.ProcessEvent(event);
 299     CPPUNIT_ASSERT_EQUAL( "oa1o2A", g_str );
 300 }
 301
 302 void EventPropagationTestCase::WindowWithoutHandler()
 303 {
 304     wxCommandEvent event(TEST_EVT);
 305     TestWindow * const parent = new TestWindow(wxTheApp->GetTopWindow(), 'p');
 306     wxON_BLOCK_EXIT_OBJ0( *parent, wxWindow::Destroy );
 307
 308     TestWindow * const child = new TestWindow(parent, 'c');
 309
 310     child->GetEventHandler()->ProcessEvent(event);
 311     CPPUNIT_ASSERT_EQUAL( "acpA", g_str );
 312 }
 313
 314 void EventPropagationTestCase::WindowWithHandler()
 315 {
 316     wxCommandEvent event(TEST_EVT);
 317     TestWindow * const parent = new TestWindow(wxTheApp->GetTopWindow(), 'p');
 318     wxON_BLOCK_EXIT_OBJ0( *parent, wxWindow::Destroy );
 319
 320     TestWindow * const child = new TestWindow(parent, 'c');
 321
 322     TestEvtHandler h1('1');
 323     child->PushEventHandler(&h1);
 324     wxON_BLOCK_EXIT_OBJ1( *child, wxWindow::PopEventHandler, false );
 325     TestEvtHandler h2('2');
 326     child->PushEventHandler(&h2);
 327     wxON_BLOCK_EXIT_OBJ1( *child, wxWindow::PopEventHandler, false );
 328
 329     child->HandleWindowEvent(event);
 330     CPPUNIT_ASSERT_EQUAL( "oa2o1cpA", g_str );
 331 }
 332
 333 void EventPropagationTestCase::ForwardEvent()
 334 {
 335     // The idea of this test is to check that the events explicitly forwarded
 336     // to another event handler still get pre/post-processed as usual as this
 337     // used to be broken by the fixes trying to avoid duplicate processing.
 338     TestWindow * const win = new TestWindow(wxTheApp->GetTopWindow(), 'w');
 339     wxON_BLOCK_EXIT_OBJ0( *win, wxWindow::Destroy );
 340
 341     TestEvtHandler h1('1');
 342     win->PushEventHandler(&h1);
 343     wxON_BLOCK_EXIT_OBJ1( *win, wxWindow::PopEventHandler, false );
 344
 345     class ForwardEvtHandler : public wxEvtHandler
 346     {
 347     public:
 348         ForwardEvtHandler(wxEvtHandler& h) : m_h(&h) { }
 349
 350         virtual bool ProcessEvent(wxEvent& event)
 351         {
 352             g_str += 'f';
 353
 354             return m_h->ProcessEvent(event);
 355         }
 356
 357     private:
 358         wxEvtHandler *m_h;
 359     } f(h1);
 360
 361     // First send the event directly to f.
 362     wxCommandEvent event1(TEST_EVT);
 363     f.ProcessEvent(event1);
 364     CPPUNIT_ASSERT_EQUAL( "foa1wA", g_str );
 365     g_str.clear();
 366
 367     // And then also test sending it to f indirectly.
 368     wxCommandEvent event2(TEST_EVT);
 369     TestEvtHandler h2('2');
 370     h2.SetNextHandler(&f);
 371     h2.ProcessEvent(event2);
 372     CPPUNIT_ASSERT_EQUAL( "oa2fo1wAA", g_str );
 373 }
 374
 375 void EventPropagationTestCase::ScrollWindowWithoutHandler()
 376 {
 377     TestWindow * const parent = new TestWindow(wxTheApp->GetTopWindow(), 'p');
 378     wxON_BLOCK_EXIT_OBJ0( *parent, wxWindow::Destroy );
 379
 380     TestScrollWindow * const win = new TestScrollWindow(parent);
 381
 382 #ifdef CAN_TEST_PAINT_EVENTS
 383     win->GeneratePaintEvent();
 384     CPPUNIT_ASSERT_EQUAL( "PD", g_str );
 385 #endif
 386
 387     g_str.clear();
 388     wxCommandEvent eventCmd(TEST_EVT);
 389     win->HandleWindowEvent(eventCmd);
 390     CPPUNIT_ASSERT_EQUAL( "apA", g_str );
 391 }
 392
 393 void EventPropagationTestCase::ScrollWindowWithHandler()
 394 {
 395     TestWindow * const parent = new TestWindow(wxTheApp->GetTopWindow(), 'p');
 396     wxON_BLOCK_EXIT_OBJ0( *parent, wxWindow::Destroy );
 397
 398     TestScrollWindow * const win = new TestScrollWindow(parent);
 399
 400 #ifdef CAN_TEST_PAINT_EVENTS
 401     TestPaintEvtHandler h('h');
 402     win->PushEventHandler(&h);
 403     wxON_BLOCK_EXIT_OBJ1( *win, wxWindow::PopEventHandler, false );
 404
 405     win->GeneratePaintEvent();
 406     CPPUNIT_ASSERT_EQUAL( "ohPD", g_str );
 407 #endif
 408
 409     g_str.clear();
 410     wxCommandEvent eventCmd(TEST_EVT);
 411     win->HandleWindowEvent(eventCmd);
 412     CPPUNIT_ASSERT_EQUAL( "apA", g_str );
 413 }
 414
 415 // Create a menu bar with a single menu containing wxID_APPLY menu item and
 416 // attach it to the specified frame.
 417 wxMenu* CreateTestMenu(wxFrame* frame)
 418 {
 419     wxMenu* const menu = new wxMenu;
 420     menu->Append(wxID_APPLY);
 421     wxMenuBar* const mb = new wxMenuBar;
 422     mb->Append(menu, "&Menu");
 423     frame->SetMenuBar(mb);
 424
 425     return menu;
 426 }
 427
 428 // Helper for checking that the menu event processing resulted in the expected
 429 // output from the handlers.
 430 //
 431 // Notice that this is supposed to be used with ASSERT_MENU_EVENT_RESULT()
 432 // macro to make the file name and line number of the caller appear in the
 433 // failure messages.
 434 void
 435 CheckMenuEvent(wxMenu* menu, const char* result, CppUnit::SourceLine sourceLine)
 436 {
 437     g_str.clear();
 438
 439     // Trigger the menu event: this is more reliable than using
 440     // wxUIActionSimulator and currently works in all ports as they all call
 441     // wxMenuBase::SendEvent() from their respective menu event handlers.
 442     menu->SendEvent(wxID_APPLY);
 443
 444     CPPUNIT_NS::assertEquals( result, g_str, sourceLine, "" );
 445 }
 446
 447 #define ASSERT_MENU_EVENT_RESULT(menu, result) \
 448     CheckMenuEvent((menu), (result), CPPUNIT_SOURCELINE())
 449
 450 void EventPropagationTestCase::MenuEvent()
 451 {
 452     wxFrame* const frame = static_cast<wxFrame*>(wxTheApp->GetTopWindow());
 453
 454     // Create a minimal menu bar.
 455     wxMenu* const menu = CreateTestMenu(frame);
 456     wxMenuBar* const mb = menu->GetMenuBar();
 457     wxScopedPtr<wxMenuBar> ensureMenuBarDestruction(mb);
 458     wxON_BLOCK_EXIT_OBJ1( *frame, wxFrame::SetMenuBar, (wxMenuBar*)NULL );
 459
 460     // Check that wxApp gets the event exactly once.
 461     ASSERT_MENU_EVENT_RESULT( menu, "aA" );
 462
 463
 464     // Check that the menu event handler is called.
 465     TestMenuEvtHandler hm('m'); // 'm' for "menu"
 466     menu->SetNextHandler(&hm);
 467     wxON_BLOCK_EXIT_OBJ1( *menu,
 468                           wxEvtHandler::SetNextHandler, (wxEvtHandler*)NULL );
 469     ASSERT_MENU_EVENT_RESULT( menu, "aomA" );
 470
 471
 472     // Test that the event handler associated with the menu bar gets the event.
 473     TestMenuEvtHandler hb('b'); // 'b' for "menu Bar"
 474     mb->PushEventHandler(&hb);
 475     wxON_BLOCK_EXIT_OBJ1( *mb, wxWindow::PopEventHandler, false );
 476
 477     ASSERT_MENU_EVENT_RESULT( menu, "aomobA" );
 478
 479
 480     // Also test that the window to which the menu belongs gets the event.
 481     TestMenuEvtHandler hw('w'); // 'w' for "Window"
 482     frame->PushEventHandler(&hw);
 483     wxON_BLOCK_EXIT_OBJ1( *frame, wxWindow::PopEventHandler, false );
 484
 485     ASSERT_MENU_EVENT_RESULT( menu, "aomobowA" );
 486 }
 487
 488 // Minimal viable implementations of wxDocument and wxView.
 489 class EventTestDocument : public wxDocument
 490 {
 491 public:
 492     EventTestDocument() { }
 493
 494     wxDECLARE_DYNAMIC_CLASS(EventTestDocument);
 495 };
 496
 497 class EventTestView : public wxView
 498 {
 499 public:
 500     EventTestView() { }
 501
 502     virtual void OnDraw(wxDC*) { }
 503
 504     wxDECLARE_DYNAMIC_CLASS(EventTestView);
 505 };
 506
 507 wxIMPLEMENT_DYNAMIC_CLASS(EventTestDocument, wxDocument);
 508 wxIMPLEMENT_DYNAMIC_CLASS(EventTestView, wxView);
 509
 510 void EventPropagationTestCase::DocView()
 511 {
 512     // Set up the parent frame and its menu bar.
 513     wxDocManager docManager;
 514
 515     wxScopedPtr<wxDocMDIParentFrame>
 516         parent(new wxDocMDIParentFrame(&docManager, NULL, wxID_ANY, "Parent"));
 517
 518     wxMenu* const menu = CreateTestMenu(parent.get());
 519
 520
 521     // Set up the event handlers.
 522     TestEvtSink sinkDM('m');
 523     docManager.Connect(wxEVT_MENU,
 524                        wxEventHandler(TestEvtSink::Handle), NULL, &sinkDM);
 525
 526     TestEvtSink sinkParent('p');
 527     parent->Connect(wxEVT_MENU,
 528                     wxEventHandler(TestEvtSink::Handle), NULL, &sinkParent);
 529
 530
 531     // Check that wxDocManager and wxFrame get the event in order.
 532     ASSERT_MENU_EVENT_RESULT( menu, "ampA" );
 533
 534
 535     // Now check what happens if we have an active document.
 536     wxDocTemplate docTemplate(&docManager, "Test", "", "", "",
 537                               "Test Document", "Test View",
 538                               wxCLASSINFO(EventTestDocument),
 539                               wxCLASSINFO(EventTestView));
 540     wxDocument* const doc = docTemplate.CreateDocument("");
 541     wxView* const view = doc->GetFirstView();
 542
 543     wxScopedPtr<wxMDIChildFrame>
 544         child(new wxDocMDIChildFrame(doc, view, parent.get(), wxID_ANY, "Child"));
 545
 546     wxMenu* const menuChild = CreateTestMenu(child.get());
 547
 548     // Ensure that the child that we've just created is the active one.
 549     child->Activate();
 550
 551 #ifdef __WXGTK__
 552     // There are a lot of hacks related to child frame menu bar handling in
 553     // wxGTK and, in particular, the code in src/gtk/mdi.cpp relies on getting
 554     // idle events to really put everything in place. Moreover, as wxGTK uses
 555     // GtkNotebook as its MDI pages container, the frame must be shown for all
 556     // this to work as gtk_notebook_set_current_page() doesn't do anything if
 557     // called for a hidden window (this incredible fact cost me quite some time
 558     // to find empirically -- only to notice its confirmation in GTK+
 559     // documentation immediately afterwards). So just do whatever it takes to
 560     // make things work "as usual".
 561     child->Show();
 562     parent->Show();
 563     wxYield();
 564 #endif // __WXGTK__
 565
 566     TestEvtSink sinkDoc('d');
 567     doc->Connect(wxEVT_MENU,
 568                  wxEventHandler(TestEvtSink::Handle), NULL, &sinkDoc);
 569
 570     TestEvtSink sinkView('v');
 571     view->Connect(wxEVT_MENU,
 572                   wxEventHandler(TestEvtSink::Handle), NULL, &sinkView);
 573
 574     TestEvtSink sinkChild('c');
 575     child->Connect(wxEVT_MENU,
 576                    wxEventHandler(TestEvtSink::Handle), NULL, &sinkChild);
 577
 578     // Check that wxDocument, wxView, wxDocManager, child frame and the parent
 579     // get the event in order.
 580     ASSERT_MENU_EVENT_RESULT( menuChild, "advmcpA" );
 581 }
 582
 583 #if wxUSE_UIACTIONSIMULATOR
 584
 585 class ContextMenuTestWindow : public wxWindow
 586 {
 587 public:
 588     ContextMenuTestWindow(wxWindow *parent, char tag)
 589         : wxWindow(parent, wxID_ANY),
 590           m_tag(tag)
 591     {
 592         Connect(wxEVT_CONTEXT_MENU,
 593                 wxContextMenuEventHandler(ContextMenuTestWindow::OnMenu));
 594     }
 595
 596 private:
 597     void OnMenu(wxContextMenuEvent& event)
 598     {
 599         g_str += m_tag;
 600
 601         event.Skip();
 602     }
 603
 604     const char m_tag;
 605
 606     wxDECLARE_NO_COPY_CLASS(ContextMenuTestWindow);
 607 };
 608
 609 void EventPropagationTestCase::ContextMenuEvent()
 610 {
 611     ContextMenuTestWindow * const
 612         parent = new ContextMenuTestWindow(wxTheApp->GetTopWindow(), 'p');
 613     wxON_BLOCK_EXIT_OBJ0( *parent, wxWindow::Destroy );
 614
 615     ContextMenuTestWindow * const
 616         child = new ContextMenuTestWindow(parent, 'c');
 617     parent->SetSize(100, 100);
 618     child->SetSize(0, 0, 50, 50);
 619     child->SetFocus();
 620
 621     wxUIActionSimulator sim;
 622     const wxPoint origin = parent->ClientToScreen(wxPoint(0, 0));
 623
 624     // Right clicking in the child should generate an event for it and the
 625     // parent.
 626     g_str.clear();
 627     sim.MouseMove(origin + wxPoint(10, 10));
 628     sim.MouseClick(wxMOUSE_BTN_RIGHT);
 629
 630     // At least with MSW, for WM_CONTEXTMENU to be synthesized by the system
 631     // from the right mouse click event, we must dispatch the mouse messages.
 632     wxYield();
 633
 634     CPPUNIT_ASSERT_EQUAL( "cp", g_str );
 635
 636     // Right clicking outside the child should generate the event just in the
 637     // parent.
 638     g_str.clear();
 639     sim.MouseMove(origin + wxPoint(60, 60));
 640     sim.MouseClick(wxMOUSE_BTN_RIGHT);
 641     wxYield();
 642     CPPUNIT_ASSERT_EQUAL( "p", g_str );
 643 }
 644
 645 #endif // wxUSE_UIACTIONSIMULATOR