void OctreeTests::elementAddChildTests() {
EntityTreePointer tree = std::make_shared<EntityTree>();
auto elem = tree->createNewElement();
QCOMPARE((bool)elem->getChildAtIndex(0), false);
elem->addChildAtIndex(0);
QCOMPARE((bool)elem->getChildAtIndex(0), true);
const int MAX_CHILD_INDEX = 8;
for (int i = 0; i < MAX_CHILD_INDEX; i++) {
for (int j = 0; j < MAX_CHILD_INDEX; j++) {
auto e = tree->createNewElement();
// add a single child.
auto firstChild = e->addChildAtIndex(i);
QCOMPARE(e->getChildAtIndex(i), firstChild);
if (i != j) {
// add a second child.
auto secondChild = e->addChildAtIndex(j);
QCOMPARE(e->getChildAtIndex(i), firstChild);
QCOMPARE(e->getChildAtIndex(j), secondChild);
// remove scecond child.
e->removeChildAtIndex(j);
QCOMPARE((bool)e->getChildAtIndex(j), false);
}
QCOMPARE(e->getChildAtIndex(i), firstChild);
}
}
}
