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Make LXFML class for robust and add more tests to edge cases and malformed data

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This commit is contained in:
Aaron Kimbrell
2025-10-06 21:10:15 -05:00
parent b3b8362f53
commit f25f49d42c
5 changed files with 365 additions and 172 deletions
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89
dCommon/Lxfml.cpp
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@@ -32,10 +32,18 @@ namespace {
Lxfml::Result Lxfml::NormalizePosition(const std::string_view data, const NiPoint3& curPosition) {
Result toReturn;
// Handle empty or invalid input
if (data.empty()) {
return toReturn;
}
// Ensure null-terminated string for tinyxml2::Parse
std::string nullTerminatedData(data);
tinyxml2::XMLDocument doc;
const auto err = doc.Parse(data.data());
const auto err = doc.Parse(nullTerminatedData.c_str());
if (err != tinyxml2::XML_SUCCESS) {
LOG("Failed to parse xml %s.", StringifiedEnum::ToString(err).data());
return toReturn;
}
@@ -44,7 +52,6 @@ Lxfml::Result Lxfml::NormalizePosition(const std::string_view data, const NiPoin
auto lxfml = reader["LXFML"];
if (!lxfml) {
LOG("Failed to find LXFML element.");
return toReturn;
}
@@ -73,16 +80,19 @@ Lxfml::Result Lxfml::NormalizePosition(const std::string_view data, const NiPoin
// Calculate the lowest and highest points on the entire model
for (const auto& transformation : transformations | std::views::values) {
auto split = GeneralUtils::SplitString(transformation, ',');
if (split.size() < 12) {
LOG("Not enough in the split?");
continue;
}
auto x = GeneralUtils::TryParse<float>(split[9]).value();
auto y = GeneralUtils::TryParse<float>(split[10]).value();
auto z = GeneralUtils::TryParse<float>(split[11]).value();
if (x < lowest.x) lowest.x = x;
if (y < lowest.y) lowest.y = y;
if (split.size() < 12) continue;
auto xOpt = GeneralUtils::TryParse<float>(split[9]);
auto yOpt = GeneralUtils::TryParse<float>(split[10]);
auto zOpt = GeneralUtils::TryParse<float>(split[11]);
if (!xOpt.has_value() || !yOpt.has_value() || !zOpt.has_value()) continue;
auto x = xOpt.value();
auto y = yOpt.value();
auto z = zOpt.value();
if (x < lowest.x) lowest.x = x;
if (y < lowest.y) lowest.y = y;
if (z < lowest.z) lowest.z = z;
if (highest.x < x) highest.x = x;
@@ -111,13 +121,19 @@ Lxfml::Result Lxfml::NormalizePosition(const std::string_view data, const NiPoin
for (auto& transformation : transformations | std::views::values) {
auto split = GeneralUtils::SplitString(transformation, ',');
if (split.size() < 12) {
LOG("Not enough in the split?");
continue;
}
auto x = GeneralUtils::TryParse<float>(split[9]).value() - newRootPos.x + curPosition.x;
auto y = GeneralUtils::TryParse<float>(split[10]).value() - newRootPos.y + curPosition.y;
auto z = GeneralUtils::TryParse<float>(split[11]).value() - newRootPos.z + curPosition.z;
auto xOpt = GeneralUtils::TryParse<float>(split[9]);
auto yOpt = GeneralUtils::TryParse<float>(split[10]);
auto zOpt = GeneralUtils::TryParse<float>(split[11]);
if (!xOpt.has_value() || !yOpt.has_value() || !zOpt.has_value()) {
continue;
}
auto x = xOpt.value() - newRootPos.x + curPosition.x;
auto y = yOpt.value() - newRootPos.y + curPosition.y;
auto z = zOpt.value() - newRootPos.z + curPosition.z;
std::stringstream stream;
for (int i = 0; i < 9; i++) {
stream << split[i];
@@ -181,16 +197,29 @@ static tinyxml2::XMLElement* CloneElementDeep(const tinyxml2::XMLElement* src, t
std::vector<Lxfml::Result> Lxfml::Split(const std::string_view data, const NiPoint3& curPosition) {
std::vector<Result> results;
// Handle empty or invalid input
if (data.empty()) {
return results;
}
// Prevent processing extremely large inputs that could cause hangs
if (data.size() > 10000000) { // 10MB limit
return results;
}
// Ensure null-terminated string for tinyxml2::Parse
// string_view::data() may not be null-terminated, causing undefined behavior
std::string nullTerminatedData(data);
tinyxml2::XMLDocument doc;
const auto err = doc.Parse(data.data());
const auto err = doc.Parse(nullTerminatedData.c_str());
if (err != tinyxml2::XML_SUCCESS) {
LOG("Failed to parse xml %s.", StringifiedEnum::ToString(err).data());
return results;
}
auto* lxfml = doc.FirstChildElement("LXFML");
if (!lxfml) {
LOG("Failed to find LXFML element.");
return results;
}
@@ -284,7 +313,13 @@ std::vector<Lxfml::Result> Lxfml::Split(const std::string_view data, const NiPoi
tinyxml2::XMLPrinter printer;
outDoc.Print(&printer);
// Normalize position and compute center using existing helper
auto normalized = NormalizePosition(printer.CStr(), curPosition);
std::string xmlString = printer.CStr();
if (xmlString.size() > 5000000) { // 5MB limit for normalization
Result emptyResult;
emptyResult.lxfml = xmlString;
return emptyResult;
}
auto normalized = NormalizePosition(xmlString, curPosition);
return normalized;
};
@@ -324,8 +359,11 @@ std::vector<Lxfml::Result> Lxfml::Split(const std::string_view data, const NiPoi
// Iteratively include any RigidSystems that reference any boneRefsIncluded
bool changed = true;
std::vector<tinyxml2::XMLElement*> rigidSystemsToInclude;
while (changed) {
int maxIterations = 1000; // Safety limit to prevent infinite loops
int iteration = 0;
while (changed && iteration < maxIterations) {
changed = false;
iteration++;
for (auto* rs : rigidSystems) {
if (usedRigidSystems.find(rs) != usedRigidSystems.end()) continue;
// parse boneRefs of this rigid system (from its <Rigid> children)
@@ -357,7 +395,12 @@ std::vector<Lxfml::Result> Lxfml::Split(const std::string_view data, const NiPoi
}
}
}
if (iteration >= maxIterations) {
// Iteration limit reached, stop processing to prevent infinite loops
// The file is likely malformed, so just skip further processing
return results;
}
// include bricks from bricksIncluded into used set
for (const auto& b : bricksIncluded) usedBrickRefs.insert(b);

2
tests/dCommonTests/CMakeLists.txt
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@@ -10,7 +10,7 @@ set(DCOMMONTEST_SOURCES
"TestLUString.cpp"
"TestLUWString.cpp"
"dCommonDependencies.cpp"
"LxfmlSplitTests.cpp"
"LxfmlTests.cpp"
)
add_subdirectory(dEnumsTests)

148
tests/dCommonTests/LxfmlSplitTests.cpp
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@@ -1,148 +0,0 @@
#include "gtest/gtest.h"
#include "Lxfml.h"
#include "TinyXmlUtils.h"
#include <fstream>
#include <sstream>
#include <unordered_set>
#include <filesystem>
using namespace TinyXmlUtils;
static std::string ReadFile(const std::string& path) {
std::ifstream in(path, std::ios::in | std::ios::binary);
std::ostringstream ss;
ss << in.rdbuf();
return ss.str();
}
TEST(LxfmlSplitTests, SplitUsesAllBricksAndNoDuplicates) {
// Read the sample test.lxfml included in tests. Resolve path relative to this source file.
std::filesystem::path srcDir = std::filesystem::path(__FILE__).parent_path();
std::filesystem::path filePath = srcDir / "test.lxfml";
std::ifstream in(filePath, std::ios::in | std::ios::binary);
std::ostringstream ss;
ss << in.rdbuf();
std::string data = ss.str();
ASSERT_FALSE(data.empty()) << "Failed to read " << filePath.string();
auto results = Lxfml::Split(data);
ASSERT_GT(results.size(), 0);
// Write split outputs to disk for manual inspection
std::filesystem::path outDir = srcDir / "lxfml_splits";
std::error_code ec;
std::filesystem::create_directories(outDir, ec);
for (size_t i = 0; i < results.size(); ++i) {
auto outPath = outDir / ("split_" + std::to_string(i) + ".lxfml");
std::ofstream ofs(outPath, std::ios::out | std::ios::binary);
ASSERT_TRUE(ofs) << "Failed to open output file: " << outPath.string();
ofs << results[i].lxfml;
ofs.close();
}
// parse original to count bricks
tinyxml2::XMLDocument doc;
ASSERT_EQ(doc.Parse(data.c_str()), tinyxml2::XML_SUCCESS);
DocumentReader reader(doc);
auto lxfml = reader["LXFML"];
ASSERT_TRUE(lxfml);
// Collect original RigidSystems and Groups (serialize each element string)
auto serializeElement = [](tinyxml2::XMLElement* elem) {
tinyxml2::XMLPrinter p;
elem->Accept(&p);
return std::string(p.CStr());
};
std::unordered_set<std::string> originalRigidSet;
if (auto* rsParent = doc.FirstChildElement("LXFML")->FirstChildElement("RigidSystems")) {
for (auto* rs = rsParent->FirstChildElement("RigidSystem"); rs; rs = rs->NextSiblingElement("RigidSystem")) {
originalRigidSet.insert(serializeElement(rs));
}
}
std::unordered_set<std::string> originalGroupSet;
if (auto* gsParent = doc.FirstChildElement("LXFML")->FirstChildElement("GroupSystems")) {
for (auto* gs = gsParent->FirstChildElement("GroupSystem"); gs; gs = gs->NextSiblingElement("GroupSystem")) {
for (auto* g = gs->FirstChildElement("Group"); g; g = g->NextSiblingElement("Group")) {
// collect this group and nested groups
std::function<void(tinyxml2::XMLElement*)> collectGroups = [&](tinyxml2::XMLElement* grp) {
originalGroupSet.insert(serializeElement(grp));
for (auto* child = grp->FirstChildElement("Group"); child; child = child->NextSiblingElement("Group")) collectGroups(child);
};
collectGroups(g);
}
}
}
std::unordered_set<std::string> originalBricks;
for (const auto& brick : lxfml["Bricks"]) {
const auto* ref = brick.Attribute("refID");
if (ref) originalBricks.insert(ref);
}
ASSERT_GT(originalBricks.size(), 0);
// Collect bricks across all results and ensure no duplicates and all used
std::unordered_set<std::string> usedBricks;
// Track used rigid systems and groups (serialized strings)
std::unordered_set<std::string> usedRigidSet;
std::unordered_set<std::string> usedGroupSet;
for (const auto& res : results) {
tinyxml2::XMLDocument outDoc;
ASSERT_EQ(outDoc.Parse(res.lxfml.c_str()), tinyxml2::XML_SUCCESS);
DocumentReader outReader(outDoc);
auto outLxfml = outReader["LXFML"];
ASSERT_TRUE(outLxfml);
// collect rigid systems in this output
if (auto* rsParent = outDoc.FirstChildElement("LXFML")->FirstChildElement("RigidSystems")) {
for (auto* rs = rsParent->FirstChildElement("RigidSystem"); rs; rs = rs->NextSiblingElement("RigidSystem")) {
auto s = serializeElement(rs);
// no duplicate allowed across outputs
ASSERT_EQ(usedRigidSet.find(s), usedRigidSet.end()) << "Duplicate RigidSystem across splits";
usedRigidSet.insert(s);
}
}
// collect groups in this output
if (auto* gsParent = outDoc.FirstChildElement("LXFML")->FirstChildElement("GroupSystems")) {
for (auto* gs = gsParent->FirstChildElement("GroupSystem"); gs; gs = gs->NextSiblingElement("GroupSystem")) {
for (auto* g = gs->FirstChildElement("Group"); g; g = g->NextSiblingElement("Group")) {
std::function<void(tinyxml2::XMLElement*)> collectGroupsOut = [&](tinyxml2::XMLElement* grp) {
auto s = serializeElement(grp);
ASSERT_EQ(usedGroupSet.find(s), usedGroupSet.end()) << "Duplicate Group across splits";
usedGroupSet.insert(s);
for (auto* child = grp->FirstChildElement("Group"); child; child = child->NextSiblingElement("Group")) collectGroupsOut(child);
};
collectGroupsOut(g);
}
}
}
for (const auto& brick : outLxfml["Bricks"]) {
const auto* ref = brick.Attribute("refID");
if (ref) {
// no duplicate allowed
ASSERT_EQ(usedBricks.find(ref), usedBricks.end()) << "Duplicate brick ref across splits: " << ref;
usedBricks.insert(ref);
}
}
}
// Every original brick must be used in one of the outputs
for (const auto& bref : originalBricks) {
ASSERT_NE(usedBricks.find(bref), usedBricks.end()) << "Brick not used in splits: " << bref;
}
// And usedBricks should not contain anything outside original
for (const auto& ub : usedBricks) {
ASSERT_NE(originalBricks.find(ub), originalBricks.end()) << "Split produced unknown brick: " << ub;
}
// Ensure all original rigid systems and groups were used exactly once
ASSERT_EQ(originalRigidSet.size(), usedRigidSet.size()) << "RigidSystem count mismatch";
for (const auto& s : originalRigidSet) ASSERT_NE(usedRigidSet.find(s), usedRigidSet.end()) << "RigidSystem missing in splits";
ASSERT_EQ(originalGroupSet.size(), usedGroupSet.size()) << "Group count mismatch";
for (const auto& s : originalGroupSet) ASSERT_NE(usedGroupSet.find(s), usedGroupSet.end()) << "Group missing in splits";
}

0
tests/dCommonTests/test.lxfml → tests/dCommonTests/LxfmlTestFiles/test.lxfml
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298
tests/dCommonTests/LxfmlTests.cpp Normal file
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@@ -0,0 +1,298 @@
#include "gtest/gtest.h"
#include "Lxfml.h"
#include "TinyXmlUtils.h"
#include "dCommonDependencies.h"
#include <fstream>
#include <sstream>
#include <unordered_set>
#include <filesystem>
using namespace TinyXmlUtils;
static std::string ReadFile(const std::string& path) {
std::ifstream in(path, std::ios::in | std::ios::binary);
std::ostringstream ss;
ss << in.rdbuf();
return ss.str();
}
TEST(LxfmlTests, SplitUsesAllBricksAndNoDuplicates) {
// Read the sample test.lxfml included in tests. Resolve path relative to this source file.
std::filesystem::path srcDir = std::filesystem::path(__FILE__).parent_path();
std::filesystem::path filePath = srcDir / "LxfmlTestFiles" / "test.lxfml";
std::ifstream in(filePath, std::ios::in | std::ios::binary);
std::ostringstream ss;
ss << in.rdbuf();
std::string data = ss.str();
ASSERT_FALSE(data.empty()) << "Failed to read " << filePath.string();
auto results = Lxfml::Split(data);
ASSERT_GT(results.size(), 0);
// Write split outputs to disk for manual inspection
std::filesystem::path outDir = srcDir / "LxfmlTestFiles" / "lxfml_splits";
std::error_code ec;
std::filesystem::create_directories(outDir, ec);
for (size_t i = 0; i < results.size(); ++i) {
auto outPath = outDir / ("split_" + std::to_string(i) + ".lxfml");
std::ofstream ofs(outPath, std::ios::out | std::ios::binary);
ASSERT_TRUE(ofs) << "Failed to open output file: " << outPath.string();
ofs << results[i].lxfml;
ofs.close();
}
// parse original to count bricks
tinyxml2::XMLDocument doc;
ASSERT_EQ(doc.Parse(data.c_str()), tinyxml2::XML_SUCCESS);
DocumentReader reader(doc);
auto lxfml = reader["LXFML"];
ASSERT_TRUE(lxfml);
// Collect original RigidSystems and Groups (serialize each element string)
auto serializeElement = [](tinyxml2::XMLElement* elem) {
tinyxml2::XMLPrinter p;
elem->Accept(&p);
return std::string(p.CStr());
};
std::unordered_set<std::string> originalRigidSet;
if (auto* rsParent = doc.FirstChildElement("LXFML")->FirstChildElement("RigidSystems")) {
for (auto* rs = rsParent->FirstChildElement("RigidSystem"); rs; rs = rs->NextSiblingElement("RigidSystem")) {
originalRigidSet.insert(serializeElement(rs));
}
}
std::unordered_set<std::string> originalGroupSet;
if (auto* gsParent = doc.FirstChildElement("LXFML")->FirstChildElement("GroupSystems")) {
for (auto* gs = gsParent->FirstChildElement("GroupSystem"); gs; gs = gs->NextSiblingElement("GroupSystem")) {
for (auto* g = gs->FirstChildElement("Group"); g; g = g->NextSiblingElement("Group")) {
// collect this group and nested groups
std::function<void(tinyxml2::XMLElement*)> collectGroups = [&](tinyxml2::XMLElement* grp) {
originalGroupSet.insert(serializeElement(grp));
for (auto* child = grp->FirstChildElement("Group"); child; child = child->NextSiblingElement("Group")) collectGroups(child);
};
collectGroups(g);
}
}
}
std::unordered_set<std::string> originalBricks;
for (const auto& brick : lxfml["Bricks"]) {
const auto* ref = brick.Attribute("refID");
if (ref) originalBricks.insert(ref);
}
ASSERT_GT(originalBricks.size(), 0);
// Collect bricks across all results and ensure no duplicates and all used
std::unordered_set<std::string> usedBricks;
// Track used rigid systems and groups (serialized strings)
std::unordered_set<std::string> usedRigidSet;
std::unordered_set<std::string> usedGroupSet;
for (const auto& res : results) {
tinyxml2::XMLDocument outDoc;
ASSERT_EQ(outDoc.Parse(res.lxfml.c_str()), tinyxml2::XML_SUCCESS);
DocumentReader outReader(outDoc);
auto outLxfml = outReader["LXFML"];
ASSERT_TRUE(outLxfml);
// collect rigid systems in this output
if (auto* rsParent = outDoc.FirstChildElement("LXFML")->FirstChildElement("RigidSystems")) {
for (auto* rs = rsParent->FirstChildElement("RigidSystem"); rs; rs = rs->NextSiblingElement("RigidSystem")) {
auto s = serializeElement(rs);
// no duplicate allowed across outputs
ASSERT_EQ(usedRigidSet.find(s), usedRigidSet.end()) << "Duplicate RigidSystem across splits";
usedRigidSet.insert(s);
}
}
// collect groups in this output
if (auto* gsParent = outDoc.FirstChildElement("LXFML")->FirstChildElement("GroupSystems")) {
for (auto* gs = gsParent->FirstChildElement("GroupSystem"); gs; gs = gs->NextSiblingElement("GroupSystem")) {
for (auto* g = gs->FirstChildElement("Group"); g; g = g->NextSiblingElement("Group")) {
std::function<void(tinyxml2::XMLElement*)> collectGroupsOut = [&](tinyxml2::XMLElement* grp) {
auto s = serializeElement(grp);
ASSERT_EQ(usedGroupSet.find(s), usedGroupSet.end()) << "Duplicate Group across splits";
usedGroupSet.insert(s);
for (auto* child = grp->FirstChildElement("Group"); child; child = child->NextSiblingElement("Group")) collectGroupsOut(child);
};
collectGroupsOut(g);
}
}
}
for (const auto& brick : outLxfml["Bricks"]) {
const auto* ref = brick.Attribute("refID");
if (ref) {
// no duplicate allowed
ASSERT_EQ(usedBricks.find(ref), usedBricks.end()) << "Duplicate brick ref across splits: " << ref;
usedBricks.insert(ref);
}
}
}
// Every original brick must be used in one of the outputs
for (const auto& bref : originalBricks) {
ASSERT_NE(usedBricks.find(bref), usedBricks.end()) << "Brick not used in splits: " << bref;
}
// And usedBricks should not contain anything outside original
for (const auto& ub : usedBricks) {
ASSERT_NE(originalBricks.find(ub), originalBricks.end()) << "Split produced unknown brick: " << ub;
}
// Ensure all original rigid systems and groups were used exactly once
ASSERT_EQ(originalRigidSet.size(), usedRigidSet.size()) << "RigidSystem count mismatch";
for (const auto& s : originalRigidSet) ASSERT_NE(usedRigidSet.find(s), usedRigidSet.end()) << "RigidSystem missing in splits";
ASSERT_EQ(originalGroupSet.size(), usedGroupSet.size()) << "Group count mismatch";
for (const auto& s : originalGroupSet) ASSERT_NE(usedGroupSet.find(s), usedGroupSet.end()) << "Group missing in splits";
}
// Tests for invalid input handling - now working with the improved Split function
TEST(LxfmlTests, InvalidLxfmlHandling) {
// Test LXFML with invalid transformation matrices
std::string invalidTransformData = R"(<?xml version="1.0" encoding="UTF-8" standalone="no" ?>
<LXFML versionMajor="5" versionMinor="0">
<Meta>
<Application name="LEGO Universe" versionMajor="0" versionMinor="0"/>
<Brand name="LEGOUniverse"/>
<BrickSet version="457"/>
</Meta>
<Bricks>
<Brick refID="0" designID="74340">
<Part refID="0" designID="3679" materials="23">
<Bone refID="0" transformation="invalid,matrix,with,text,values,here,not,numbers,at,all,fails,parse"/>
</Part>
</Brick>
<Brick refID="1" designID="41533">
<Part refID="1" designID="41533" materials="23">
<Bone refID="1" transformation="1,2,3"/>
</Part>
</Brick>
</Bricks>
</LXFML>)";
// The Split function should handle invalid transformation matrices gracefully
std::vector<Lxfml::Result> results;
EXPECT_NO_FATAL_FAILURE({
results = Lxfml::Split(invalidTransformData);
}) << "Split should not crash on invalid transformation matrices";
// Function should handle invalid transforms gracefully, possibly returning empty or partial results
// The exact behavior depends on how the function handles invalid numeric parsing
}
TEST(LxfmlTests, EmptyLxfmlHandling) {
// Test with completely empty input
std::string emptyData = "";
std::vector<Lxfml::Result> results;
EXPECT_NO_FATAL_FAILURE({
results = Lxfml::Split(emptyData);
}) << "Split should not crash on empty input";
EXPECT_EQ(results.size(), 0) << "Empty input should return empty results";
}
TEST(LxfmlTests, InvalidTransformHandling) {
// Test with various types of invalid transformation matrices
std::vector<std::string> invalidTransformTests = {
// LXFML with empty transformation
R"(<?xml version="1.0"?><LXFML versionMajor="5" versionMinor="0"><Meta></Meta><Bricks><Brick refID="0" designID="74340"><Part refID="0" designID="3679"><Bone refID="0" transformation=""/></Part></Brick></Bricks></LXFML>)",
// LXFML with too few transformation values (needs 12, has 6)
R"(<?xml version="1.0"?><LXFML versionMajor="5" versionMinor="0"><Meta></Meta><Bricks><Brick refID="0" designID="74340"><Part refID="0" designID="3679"><Bone refID="0" transformation="1,0,0,0,1,0"/></Part></Brick></Bricks></LXFML>)",
// LXFML with non-numeric transformation values
R"(<?xml version="1.0"?><LXFML versionMajor="5" versionMinor="0"><Meta></Meta><Bricks><Brick refID="0" designID="74340"><Part refID="0" designID="3679"><Bone refID="0" transformation="a,b,c,d,e,f,g,h,i,j,k,l"/></Part></Brick></Bricks></LXFML>)",
// LXFML with mixed valid/invalid transformation values
R"(<?xml version="1.0"?><LXFML versionMajor="5" versionMinor="0"><Meta></Meta><Bricks><Brick refID="0" designID="74340"><Part refID="0" designID="3679"><Bone refID="0" transformation="1,0,invalid,0,1,0,0,0,1,10,20,30"/></Part></Brick></Bricks></LXFML>)",
// LXFML with no Bricks section (should return empty gracefully)
R"(<?xml version="1.0"?><LXFML versionMajor="5" versionMinor="0"><Meta></Meta></LXFML>)"
};
for (size_t i = 0; i < invalidTransformTests.size(); ++i) {
std::vector<Lxfml::Result> results;
EXPECT_NO_FATAL_FAILURE({
results = Lxfml::Split(invalidTransformTests[i]);
}) << "Split should not crash on invalid transform test case " << i;
// The function should handle invalid transforms gracefully
// May return empty results or skip invalid bricks
}
}
TEST(LxfmlTests, MixedValidInvalidTransformsHandling) {
// Test LXFML with mix of valid and invalid transformation data
std::string mixedValidData = R"(<?xml version="1.0" encoding="UTF-8" standalone="no" ?>
<LXFML versionMajor="5" versionMinor="0">
<Meta>
<Application name="LEGO Universe" versionMajor="0" versionMinor="0"/>
<Brand name="LEGOUniverse"/>
<BrickSet version="457"/>
</Meta>
<Bricks>
<Brick refID="0" designID="74340">
<Part refID="0" designID="3679" materials="23">
<Bone refID="0" transformation="1,0,0,0,1,0,0,0,1,0,0,0"/>
</Part>
</Brick>
<Brick refID="1" designID="41533">
<Part refID="1" designID="41533" materials="23">
<Bone refID="1" transformation="invalid,transform,here,bad,values,foo,bar,baz,qux,0,0,0"/>
</Part>
</Brick>
<Brick refID="2" designID="74340">
<Part refID="2" designID="3679" materials="23">
<Bone refID="2" transformation="1,0,0,0,1,0,0,0,1,10,20,30"/>
</Part>
</Brick>
<Brick refID="3" designID="41533">
<Part refID="3" designID="41533" materials="23">
<Bone refID="3" transformation="1,2,3"/>
</Part>
</Brick>
</Bricks>
<RigidSystems>
<RigidSystem>
<Rigid boneRefs="0,2"/>
</RigidSystem>
<RigidSystem>
<Rigid boneRefs="1,3"/>
</RigidSystem>
</RigidSystems>
<GroupSystems>
<GroupSystem>
<Group partRefs="0,2"/>
<Group partRefs="1,3"/>
</GroupSystem>
</GroupSystems>
</LXFML>)";
// The Split function should handle mixed valid/invalid transforms gracefully
std::vector<Lxfml::Result> results;
EXPECT_NO_FATAL_FAILURE({
results = Lxfml::Split(mixedValidData);
}) << "Split should not crash on mixed valid/invalid transforms";
// Should process valid bricks and handle invalid ones gracefully
if (results.size() > 0) {
EXPECT_NO_FATAL_FAILURE({
for (size_t i = 0; i < results.size(); ++i) {
// Each result should have valid LXFML structure
tinyxml2::XMLDocument doc;
auto parseResult = doc.Parse(results[i].lxfml.c_str());
EXPECT_EQ(parseResult, tinyxml2::XML_SUCCESS)
<< "Result " << i << " should produce valid XML";
if (parseResult == tinyxml2::XML_SUCCESS) {
auto* lxfml = doc.FirstChildElement("LXFML");
EXPECT_NE(lxfml, nullptr) << "Result " << i << " should have LXFML root element";
}
}
}) << "Mixed valid/invalid transform processing should not cause fatal errors";
}
}