Method testArrayCountRecompose

tests/test_compose.cpp:961–1016

    }

    void testArrayCountRecompose() {
        // After changing arrayLen and recomposing, the text shows the new count
        NodeTree tree;
        tree.baseAddress = 0;

        Node root;
        root.kind = NodeKind::Struct;
        root.name = "Root";
        root.parentId = 0;
        int ri = tree.addNode(root);
        uint64_t rootId = tree.nodes[ri].id;

        Node arr;
        arr.kind = NodeKind::Array;
        arr.name = "buf";
        arr.parentId = rootId;
        arr.offset = 0;
        arr.elementKind = NodeKind::UInt8;
        arr.arrayLen = 10;
        int ai = tree.addNode(arr);

        NullProvider prov;

        // First compose: should show [10]
        ComposeResult r1 = compose(tree, prov);
        QStringList lines1 = r1.text.split('\n');
        bool found10 = false;
        for (const QString& l : lines1) {
            if (l.contains("[10]")) { found10 = true; break; }
        }
        QVERIFY2(found10, "First compose should show [10]");

        // Change count and recompose
        tree.nodes[ai].arrayLen = 42;
        ComposeResult r2 = compose(tree, prov);
        QStringList lines2 = r2.text.split('\n');
        bool found42 = false;
        bool still10Header = false;
        for (int i = 0; i < r2.meta.size(); i++) {
            if (r2.meta[i].isArrayHeader && lines2[i].contains("uint8_t[42]")) found42 = true;
            if (r2.meta[i].isArrayHeader && lines2[i].contains("uint8_t[10]")) still10Header = true;
        }
        QVERIFY2(found42, "Recomposed header should show uint8_t[42]");
        QVERIFY2(!still10Header, "Recomposed header should NOT still show uint8_t[10]");

        // Spans must still work after recompose
        int headerLine = -1;
        for (int i = 0; i < r2.meta.size(); i++) {
            if (r2.meta[i].isArrayHeader) { headerLine = i; break; }
        }
        QVERIFY(headerLine >= 0);
        ColumnSpan countSpan = arrayElemCountSpanFor(r2.meta[headerLine], lines2[headerLine]);
        QVERIFY2(countSpan.valid, "Count span must be valid after recompose");
        QString countText = lines2[headerLine].mid(countSpan.start, countSpan.end - countSpan.start);
        QCOMPARE(countText, QString("42"));
    }

    void testPrimitiveArrayElements() {