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#include <utils/treemodel.h>

#include <QtTest>

//TESTED_COMPONENT=src/libs/utils/treemodel

using namespace Utils;

class tst_TreeModel : public QObject
{
    Q_OBJECT

private slots:
    void testIteration();
};

static int countLevelItems(TreeItem *base, int level)
{
    int n = 0;
    foreach (TreeItem *item, UntypedTreeLevelItems(base, level)) {
        Q_UNUSED(item);
        ++n;
    }
    return n;
}

static TreeItem *createItem(const char *name)
{
    return new TreeItem(QStringList(QString::fromLatin1(name)));
}

void tst_TreeModel::testIteration()
{
    TreeModel m;
    TreeItem *r = m.rootItem();
    TreeItem *group0 = createItem("group0");
    TreeItem *group1 = createItem("group1");
    TreeItem *item10 = createItem("item10");
    TreeItem *item11 = createItem("item11");
    TreeItem *item12 = createItem("item12");
    group1->appendChild(item10);
    group1->appendChild(item11);
    TreeItem *group2 = createItem("group2");
    TreeItem *item20 = createItem("item20");
    TreeItem *item21 = createItem("item21");
    TreeItem *item22 = createItem("item22");
    r->appendChild(group0);
    r->appendChild(group1);
    r->appendChild(group2);
    group1->appendChild(item12);
    group2->appendChild(item20);
    group2->appendChild(item21);
    group2->appendChild(item22);

    QCOMPARE(r->rowCount(), 3);
    QCOMPARE(countLevelItems(r, 1), 3);
    QCOMPARE(countLevelItems(r, 2), 6);
    QCOMPARE(countLevelItems(r, 3), 0);
    QCOMPARE(countLevelItems(group0, 1), 0);
    QCOMPARE(countLevelItems(group1, 1), 3);
    QCOMPARE(countLevelItems(group1, 2), 0);
    QCOMPARE(countLevelItems(group2, 1), 3);
    QCOMPARE(countLevelItems(group2, 2), 0);
}


QTEST_MAIN(tst_TreeModel)

#include "tst_treemodel.moc"