Method testSubtreeCycleSafe

tests/test_core.cpp:174–190

    }

    void testSubtreeCycleSafe() {
        rcx::NodeTree tree;
        rcx::Node a; a.kind = rcx::NodeKind::Struct; a.name = "A"; a.parentId = 0;
        int ai = tree.addNode(a);
        uint64_t aId = tree.nodes[ai].id;

        // Create a child that points back to A's id as parent — not a cycle per se,
        // but test that subtree collection terminates
        rcx::Node b; b.kind = rcx::NodeKind::Hex8; b.name = "B"; b.parentId = aId;
        tree.addNode(b);

        // Should return both nodes without hanging
        auto sub = tree.subtreeIndices(aId);
        QCOMPARE(sub.size(), 2);
        QVERIFY(sub.contains(0));
        QVERIFY(sub.contains(1));
    }

    void testIsReadableOverflow() {
        QByteArray data(16, '\0');