Method testComputeOffsetCycle

tests/test_core.cpp:241–259

    }

    void testComputeOffsetCycle() {
        rcx::NodeTree tree;
        rcx::Node a; a.kind = rcx::NodeKind::Struct; a.name = "A"; a.parentId = 0; a.offset = 10;
        int ai = tree.addNode(a);
        uint64_t aId = tree.nodes[ai].id;

        rcx::Node b; b.kind = rcx::NodeKind::Struct; b.name = "B"; b.parentId = aId; b.offset = 20;
        int bi = tree.addNode(b);
        uint64_t bId = tree.nodes[bi].id;

        // Create cycle: A → B → A
        tree.nodes[ai].parentId = bId;
        tree.invalidateIdCache();

        // Should not hang
        int off = tree.computeOffset(ai);
        Q_UNUSED(off);
        QVERIFY(true); // reaching here means no hang
    }

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