test_pugixml.cpp

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// Copyright (c) 2026 Computer Vision Center (CVC) at the Universitat Autonoma
// de Barcelona (UAB).
//
// This work is licensed under the terms of the MIT license.
// For a copy, see <https://opensource.org/licenses/MIT>.
 
#include "test.h"
#include <pugixml/pugixml.hpp>
 
using namespace pugi;
 
TEST(pugixml, null_pointer_dereference_insert_move_before) {
  // Create an empty node (without root, _root = nullptr)
  xml_node empty_node;
  ASSERT_FALSE(empty_node);
 
  // Create a valid document
  xml_document doc;
  xml_node root = doc.append_child("root");
  xml_node child1 = root.append_child("child1");
  xml_node child2 = root.append_child("child2");
 
  // Attempt insert_move_before from an empty node
  // Before the patch this would crash, now it should return an empty xml_node
  xml_node result = empty_node.insert_move_before(child2, child1);
 
  // Verify it returns an empty node without crashing
  EXPECT_FALSE(result);
}
 
TEST(pugixml, null_pointer_dereference_insert_move_after) {
  // Create an empty node
  xml_node empty_node;
 
  // Create a valid document
  xml_document doc;
  xml_node root = doc.append_child("root");
  xml_node child1 = root.append_child("child1");
  xml_node child2 = root.append_child("child2");
 
  // Attempt insert_move_after from an empty node
  xml_node result = empty_node.insert_move_after(child2, child1);
 
  // Verify it returns an empty node without crashing
  EXPECT_FALSE(result);
}
 
TEST(pugixml, null_pointer_dereference_insert_child_before) {
  // Create an empty node
  xml_node empty_node;
 
  // Create a valid document
  xml_document doc;
  xml_node root = doc.append_child("root");
  xml_node child = root.append_child("child");
 
  // Attempt insert_child_before from an empty node
  xml_node result = empty_node.insert_child_before(node_element, child);
 
  // Verify it returns an empty node without crashing
  EXPECT_FALSE(result);
}
 
TEST(pugixml, null_pointer_dereference_insert_child_after) {
  // Create an empty node
  xml_node empty_node;
 
  // Create a valid document
  xml_document doc;
  xml_node root = doc.append_child("root");
  xml_node child = root.append_child("child");
 
  // Attempt insert_child_after from an empty node
  xml_node result = empty_node.insert_child_after(node_element, child);
 
  // Verify it returns an empty node without crashing
  EXPECT_FALSE(result);
}
 
TEST(pugixml, null_pointer_dereference_insert_copy_before) {
  // Create an empty node
  xml_node empty_node;
 
  // Create a valid document
  xml_document doc;
  xml_node root = doc.append_child("root");
  xml_node child = root.append_child("child");
  xml_node proto = root.append_child("proto");
 
  // Attempt insert_copy_before from an empty node
  xml_node result = empty_node.insert_copy_before(proto, child);
 
  // Verify it returns an empty node without crashing
  EXPECT_FALSE(result);
}
 
TEST(pugixml, null_pointer_dereference_insert_copy_after) {
  // Create an empty node
  xml_node empty_node;
 
  // Create a valid document
  xml_document doc;
  xml_node root = doc.append_child("root");
  xml_node child = root.append_child("child");
  xml_node proto = root.append_child("proto");
 
  // Attempt insert_copy_after from an empty node
  xml_node result = empty_node.insert_copy_after(proto, child);
 
  // Verify it returns an empty node without crashing
  EXPECT_FALSE(result);
}