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Fix wxXmlDocument::SetRoot() broken by recent changes.

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Support for wxXML_PI_NODE introduced in r67346 broke SetRoot() and, because of
this, saving XML documents.

Correct this and add a unit test for this method.

Closes #13135.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@67519 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Vadim Zeitlin 2011-04-17 00:09:45 +00:00
parent 32bd17fcb5
commit 6f24b81707
2 changed files with 55 additions and 2 deletions
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12
src/xml/xml.cpp
View File

@ -505,6 +505,12 @@ wxXmlNode *wxXmlDocument::DetachRoot()
void wxXmlDocument::SetRoot(wxXmlNode *root)
{
if (root)
{
wxASSERT_MSG( root->GetType() == wxXML_ELEMENT_NODE,
"Can only set an element type node as root" );
}
wxXmlNode *node = m_docNode;
if (node)
{
@ -515,7 +521,7 @@ void wxXmlDocument::SetRoot(wxXmlNode *root)
prev = node;
node = node->GetNext();
}
if (node)
if (node && root)
{
root->SetNext( node->GetNext() );
wxDELETE(node);
@ -528,8 +534,10 @@ void wxXmlDocument::SetRoot(wxXmlNode *root)
else
{
m_docNode = new wxXmlNode(wxXML_DOCUMENT_NODE, wxEmptyString);
m_docNode->SetChildren(root);
}
root->SetParent(m_docNode);
if (root)
root->SetParent(m_docNode);
}
void wxXmlDocument::AppendToProlog(wxXmlNode *node)

45
tests/xml/xmltest.cpp
View File

@ -81,6 +81,7 @@ private:
CPPUNIT_TEST( Escaping );
CPPUNIT_TEST( DetachRoot );
CPPUNIT_TEST( AppendToProlog );
CPPUNIT_TEST( SetRoot );
CPPUNIT_TEST_SUITE_END();
void InsertChild();
@ -91,6 +92,7 @@ private:
void Escaping();
void DetachRoot();
void AppendToProlog();
void SetRoot();
DECLARE_NO_COPY_CLASS(XmlTestCase)
};
@ -424,3 +426,46 @@ void XmlTestCase::AppendToProlog()
;
CPPUNIT_ASSERT_EQUAL( xmlTextResult, sos.GetString() );
}
void XmlTestCase::SetRoot()
{
wxXmlDocument doc;
CPPUNIT_ASSERT( !doc.IsOk() );
wxXmlNode *root = new wxXmlNode(wxXML_ELEMENT_NODE, "root");
// Test for the problem of http://trac.wxwidgets.org/ticket/13135
doc.SetRoot( root );
wxXmlNode *docNode = doc.GetDocumentNode();
CPPUNIT_ASSERT( docNode && root == docNode->GetChildren() );
CPPUNIT_ASSERT( doc.IsOk() );
// Other tests.
CPPUNIT_ASSERT( docNode == root->GetParent() );
doc.SetRoot(NULL); // Removes from doc but dosn't free mem, doc node left.
CPPUNIT_ASSERT( !doc.IsOk() );
wxXmlNode *comment = new wxXmlNode(wxXML_COMMENT_NODE, "comment", "Prolog Comment");
wxXmlNode *pi = new wxXmlNode(wxXML_PI_NODE, "target", "PI instructions");
doc.AppendToProlog(comment);
doc.SetRoot( root );
doc.AppendToProlog(pi);
CPPUNIT_ASSERT( doc.IsOk() );
wxXmlNode *node = docNode->GetChildren();
CPPUNIT_ASSERT( node );
CPPUNIT_ASSERT( node->GetType() == wxXML_COMMENT_NODE );
CPPUNIT_ASSERT( node->GetParent() == docNode );
node = node->GetNext();
CPPUNIT_ASSERT( node );
CPPUNIT_ASSERT( node->GetType() == wxXML_PI_NODE );
CPPUNIT_ASSERT( node->GetParent() == docNode );
node = node->GetNext();
CPPUNIT_ASSERT( node );
CPPUNIT_ASSERT( node->GetType() == wxXML_ELEMENT_NODE );
CPPUNIT_ASSERT( node->GetParent() == docNode );
node = node->GetNext();
CPPUNIT_ASSERT( !node );
doc.SetRoot(NULL);
CPPUNIT_ASSERT( !doc.IsOk() );
doc.SetRoot(root);
CPPUNIT_ASSERT( doc.IsOk() );
}