Method testSimplifiedModel

tests/modeltests/tst_models.cpp:129–213

    }

    void testSimplifiedModel()
    {
        const auto tree = buildBottomUpTree(R"(
            4;3;2;1
            5;3;2;1
            9;8;7;6
            11;10;7;6
            12;7;6
            13;6
            14
        )");
        QCOMPARE(tree.root.children.size(), 3);
        const auto i1 = &tree.root.children.first();
        QCOMPARE(i1->symbol.symbol, QStringLiteral("1"));
        QCOMPARE(i1->children.size(), 1);
        const auto i2 = &i1->children.first();
        QCOMPARE(i2->symbol.symbol, QStringLiteral("2"));
        QCOMPARE(i2->children.size(), 1);
        const auto i3 = &i2->children.first();
        QCOMPARE(i3->symbol.symbol, QStringLiteral("3"));
        QCOMPARE(i3->children.size(), 2);
        const auto i4 = &i3->children.first();
        QCOMPARE(i4->symbol.symbol, QStringLiteral("4"));
        QCOMPARE(i4->children.size(), 0);
        const auto i5 = &i3->children.last();
        QCOMPARE(i5->symbol.symbol, QStringLiteral("5"));
        QCOMPARE(i5->children.size(), 0);

        BottomUpModel model;
        model.setSimplify(true);
        QAbstractItemModelTester tester(&model);

        model.setData(tree);
        QCOMPARE(model.rowCount(), 3);

        const auto i1_idx = model.indexFromItem(i1, 0);
        QVERIFY(i1_idx.isValid());
        QCOMPARE(i1_idx, model.index(0, 0));
        QCOMPARE(model.parent(i1_idx), QModelIndex());
        QCOMPARE(model.itemFromIndex(i1_idx), i1);
        QCOMPARE(model.rowCount(i1_idx), 2); // simplified

        const auto i2_idx = model.indexFromItem(i2, 0);
        QVERIFY(i2_idx.isValid());
        QCOMPARE(i2_idx, model.index(0, 0, i1_idx));
        QCOMPARE(model.parent(i2_idx), i1_idx);
        QCOMPARE(model.itemFromIndex(i2_idx), i2);
        QCOMPARE(model.rowCount(i2_idx), 0); // simplified

        const auto i3_idx = model.indexFromItem(i3, 0);
        QVERIFY(i3_idx.isValid());
        QCOMPARE(i3_idx, model.index(1, 0, i1_idx));
        QCOMPARE(model.parent(i3_idx), i1_idx);
        QCOMPARE(model.itemFromIndex(i3_idx), i3);
        QCOMPARE(model.rowCount(i3_idx), 2);

        const auto i4_idx = model.indexFromItem(i4, 0);
        QVERIFY(i4_idx.isValid());