wxTreebook is supposed to allow not specifying any valid window for the
top-level pages, but this didn't work any longer, probably since the
changes of 02a92e23f3 (see #4379), as a
possibly null page was dereferenced without checking, resulting in a
crash.
Fix this by adding a missing check.
Also rename DoGetNonNullPage() to TryGetNonNullPage() to make it more
clear that this function can return null and add a unit test checking
that calling AddPage(NULL) really works (or at least doesn't crash).
See https://github.com/wxWidgets/wxWidgets/pull/921
		
	
		
			
				
	
	
		
			163 lines
		
	
	
		
			4.4 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			163 lines
		
	
	
		
			4.4 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
///////////////////////////////////////////////////////////////////////////////
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// Name:        tests/controls/treebooktest.cpp
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// Purpose:     wxtreebook unit test
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// Author:      Steven Lamerton
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// Created:     2010-07-02
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// Copyright:   (c) 2010 Steven Lamerton
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///////////////////////////////////////////////////////////////////////////////
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#include "testprec.h"
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#if wxUSE_TREEBOOK
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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/app.h"
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    #include "wx/panel.h"
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#endif // WX_PRECOMP
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#include "wx/treebook.h"
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#include "bookctrlbasetest.h"
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class TreebookTestCase : public BookCtrlBaseTestCase, public CppUnit::TestCase
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{
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public:
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    TreebookTestCase() { }
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    virtual void setUp() wxOVERRIDE;
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    virtual void tearDown() wxOVERRIDE;
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private:
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    virtual wxBookCtrlBase *GetBase() const wxOVERRIDE { return m_treebook; }
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    virtual wxEventType GetChangedEvent() const wxOVERRIDE
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        { return wxEVT_TREEBOOK_PAGE_CHANGED; }
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    virtual wxEventType GetChangingEvent() const wxOVERRIDE
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        { return wxEVT_TREEBOOK_PAGE_CHANGING; }
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    CPPUNIT_TEST_SUITE( TreebookTestCase );
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        wxBOOK_CTRL_BASE_TESTS();
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        CPPUNIT_TEST( Image );
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        CPPUNIT_TEST( SubPages );
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        CPPUNIT_TEST( ContainerPage );
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        CPPUNIT_TEST( Expand );
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        CPPUNIT_TEST( Delete );
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    CPPUNIT_TEST_SUITE_END();
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    void SubPages();
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    void ContainerPage();
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    void Expand();
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    void Delete();
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    wxTreebook *m_treebook;
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    wxDECLARE_NO_COPY_CLASS(TreebookTestCase);
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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( TreebookTestCase );
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// also include in its own registry so that these tests can be run alone
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CPPUNIT_TEST_SUITE_NAMED_REGISTRATION( TreebookTestCase, "TreebookTestCase" );
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void TreebookTestCase::setUp()
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{
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    m_treebook = new wxTreebook(wxTheApp->GetTopWindow(), wxID_ANY);
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    AddPanels();
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}
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void TreebookTestCase::tearDown()
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{
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    wxDELETE(m_treebook);
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}
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void TreebookTestCase::SubPages()
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{
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    wxPanel* subpanel1 = new wxPanel(m_treebook);
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    wxPanel* subpanel2 = new wxPanel(m_treebook);
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    wxPanel* subpanel3 = new wxPanel(m_treebook);
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    m_treebook->AddSubPage(subpanel1, "Subpanel 1", false, 0);
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    CPPUNIT_ASSERT_EQUAL(2, m_treebook->GetPageParent(3));
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    m_treebook->InsertSubPage(1, subpanel2, "Subpanel 2", false, 1);
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    CPPUNIT_ASSERT_EQUAL(1, m_treebook->GetPageParent(2));
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    m_treebook->AddSubPage(subpanel3, "Subpanel 3", false, 2);
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    CPPUNIT_ASSERT_EQUAL(3, m_treebook->GetPageParent(5));
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}
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void TreebookTestCase::ContainerPage()
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{
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    // Get rid of the pages added in setUp().
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    m_treebook->DeleteAllPages();
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    CHECK( m_treebook->GetPageCount() == 0 );
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    // Adding a page without the associated window should be allowed.
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    REQUIRE_NOTHROW( m_treebook->AddPage(NULL, "Container page") );
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    CHECK( m_treebook->GetPageParent(0) == -1 );
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    m_treebook->AddSubPage(new wxPanel(m_treebook), "Child page");
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    CHECK( m_treebook->GetPageParent(1) == 0 );
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}
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void TreebookTestCase::Expand()
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{
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    wxPanel* subpanel1 = new wxPanel(m_treebook);
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    wxPanel* subpanel2 = new wxPanel(m_treebook);
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    wxPanel* subpanel3 = new wxPanel(m_treebook);
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    m_treebook->AddSubPage(subpanel1, "Subpanel 1", false, 0);
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    m_treebook->InsertSubPage(1, subpanel2, "Subpanel 2", false, 1);
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    m_treebook->AddSubPage(subpanel3, "Subpanel 3", false, 2);
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    CPPUNIT_ASSERT(!m_treebook->IsNodeExpanded(1));
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    CPPUNIT_ASSERT(!m_treebook->IsNodeExpanded(3));
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    m_treebook->CollapseNode(1);
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    CPPUNIT_ASSERT(!m_treebook->IsNodeExpanded(1));
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    m_treebook->ExpandNode(3, false);
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    CPPUNIT_ASSERT(!m_treebook->IsNodeExpanded(3));
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    m_treebook->ExpandNode(1);
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    CPPUNIT_ASSERT(m_treebook->IsNodeExpanded(1));
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}
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void TreebookTestCase::Delete()
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{
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    wxPanel* subpanel1 = new wxPanel(m_treebook);
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    wxPanel* subpanel2 = new wxPanel(m_treebook);
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    wxPanel* subpanel3 = new wxPanel(m_treebook);
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    m_treebook->AddSubPage(subpanel1, "Subpanel 1", false, 0);
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    m_treebook->InsertSubPage(1, subpanel2, "Subpanel 2", false, 1);
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    m_treebook->AddSubPage(subpanel3, "Subpanel 3", false, 2);
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    CPPUNIT_ASSERT_EQUAL(6, m_treebook->GetPageCount());
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    m_treebook->DeletePage(3);
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    CPPUNIT_ASSERT_EQUAL(3, m_treebook->GetPageCount());
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    m_treebook->DeletePage(1);
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    CPPUNIT_ASSERT_EQUAL(1, m_treebook->GetPageCount());
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    m_treebook->DeletePage(0);
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    CPPUNIT_ASSERT_EQUAL(0, m_treebook->GetPageCount());
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}
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#endif // wxUSE_TREEBOOK
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