diff -r 000000000000 -r 1918ee327afb tests/auto/qitemmodel/modelstotest.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tests/auto/qitemmodel/modelstotest.cpp	Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,410 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the test suite of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights.  These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+
+#include <QtTest/QtTest>
+#include <QtCore/QtCore>
+#include <QtSql/QtSql>
+#include <QtGui/QtGui>
+#include <QSortFilterProxyModel>
+
+/*
+    To add a model to be tested add the header file to the includes
+    and impliment what is needed in the four functions below.
+
+    You can add more then one model, several Qt models and included as examples.
+
+    In tst_qitemmodel.cpp a new ModelsToTest object is created for each test.
+
+    When you have errors fix the first ones first.  Later tests depend upon them working
+*/
+
+class ModelsToTest {
+
+public:
+    ModelsToTest();
+
+    QAbstractItemModel *createModel(const QString &modelType);
+    QModelIndex populateTestArea(QAbstractItemModel *model);
+    void cleanupTestArea(QAbstractItemModel *model);
+
+    enum Read {
+        ReadOnly, // wont perform remove(), insert(), and setData()
+        ReadWrite
+    };
+    enum Contains {
+        Empty,  // Confirm that rowCount() == 0 etc throughout the test
+        HasData // Confirm that rowCount() != 0 etc throughout the test
+    };
+
+    struct test {
+            test(QString m, Read r, Contains c) : modelType(m), read(r), contains(c){};
+
+            QString modelType;
+            Read read;
+            Contains contains;
+    };
+
+    QList<test> tests;
+
+    static void setupDatabase();
+};
+
+
+/*!
+    Add new tests, they can be the same model, but in a different state.
+
+    The name of the model is passed to createModel
+    If readOnly is true the remove tests will be skipped.  Example: QDirModel is disabled.
+    If createModel returns an empty model.  Example: QDirModel does not
+ */
+ModelsToTest::ModelsToTest()
+{
+    setupDatabase();
+
+    tests.append(test("QDirModel", ReadOnly, HasData));
+    tests.append(test("QStringListModel", ReadWrite, HasData));
+    tests.append(test("QStringListModelEmpty", ReadWrite, Empty));
+
+    tests.append(test("QStandardItemModel", ReadWrite, HasData));
+    tests.append(test("QStandardItemModelEmpty", ReadWrite, Empty));
+
+    // QSortFilterProxyModel test uses QStandardItemModel so test it first
+    tests.append(test("QSortFilterProxyModel", ReadWrite, HasData));
+    tests.append(test("QSortFilterProxyModelEmpty", ReadWrite, Empty));
+    tests.append(test("QSortFilterProxyModelRegExp", ReadWrite, HasData));
+
+    tests.append(test("QListModel", ReadWrite, HasData));
+    tests.append(test("QListModelEmpty", ReadWrite, Empty));
+    tests.append(test("QTableModel", ReadWrite, HasData));
+    tests.append(test("QTableModelEmpty", ReadWrite, Empty));
+
+    tests.append(test("QTreeModel", ReadWrite, HasData));
+    tests.append(test("QTreeModelEmpty", ReadWrite, Empty));
+
+    tests.append(test("QSqlQueryModel", ReadOnly, HasData));
+    tests.append(test("QSqlQueryModelEmpty", ReadOnly, Empty));
+
+    // Fails on remove
+    tests.append(test("QSqlTableModel", ReadOnly, HasData));
+}
+
+/*!
+    Return a new modelType.
+ */
+QAbstractItemModel *ModelsToTest::createModel(const QString &modelType)
+{
+    if (modelType == "QStringListModelEmpty")
+        return new QStringListModel();
+
+    if (modelType == "QStringListModel") {
+        QStringListModel *model = new QStringListModel();
+        populateTestArea(model);
+        return model;
+    }
+
+    if (modelType == "QStandardItemModelEmpty") {
+        return new QStandardItemModel();
+    }
+
+    if (modelType == "QStandardItemModel") {
+        QStandardItemModel *model = new QStandardItemModel();
+        populateTestArea(model);
+        return model;
+    }
+
+    if (modelType == "QSortFilterProxyModelEmpty") {
+        QSortFilterProxyModel *model = new QSortFilterProxyModel;
+        QStandardItemModel *standardItemModel = new QStandardItemModel;
+        model->setSourceModel(standardItemModel);
+        return model;
+    }
+
+    if (modelType == "QSortFilterProxyModelRegExp") {
+        QSortFilterProxyModel *model = new QSortFilterProxyModel;
+        QStandardItemModel *standardItemModel = new QStandardItemModel;
+        model->setSourceModel(standardItemModel);
+        populateTestArea(model);
+        model->setFilterRegExp(QRegExp("(^$|0.*)"));
+        return model;
+    }
+
+    if (modelType == "QSortFilterProxyModel") {
+        QSortFilterProxyModel *model = new QSortFilterProxyModel;
+        QStandardItemModel *standardItemModel = new QStandardItemModel;
+        model->setSourceModel(standardItemModel);
+        populateTestArea(model);
+        return model;
+    }
+
+    if (modelType == "QDirModel") {
+        QDirModel *model = new QDirModel();
+        model->setReadOnly(false);
+        return model;
+    }
+
+    if (modelType == "QSqlQueryModel") {
+        QSqlQueryModel *model = new QSqlQueryModel();
+        populateTestArea(model);
+        return model;
+    }
+
+    if (modelType == "QSqlQueryModelEmpty") {
+        QSqlQueryModel *model = new QSqlQueryModel();
+        return model;
+    }
+
+    if (modelType == "QSqlTableModel") {
+        QSqlTableModel *model = new QSqlTableModel();
+        populateTestArea(model);
+        return model;
+    }
+
+    if (modelType == "QListModelEmpty")
+        return (new QListWidget)->model();
+
+    if (modelType == "QListModel") {
+        QListWidget *widget = new QListWidget;
+        populateTestArea(widget->model());
+        return widget->model();
+    }
+
+    if (modelType == "QTableModelEmpty")
+        return (new QTableWidget)->model();
+
+    if (modelType == "QTableModel") {
+        QTableWidget *widget = new QTableWidget;
+        populateTestArea(widget->model());
+        return widget->model();
+    }
+
+    if (modelType == "QTreeModelEmpty") {
+        QTreeWidget *widget = new QTreeWidget;
+        return widget->model();
+    }
+
+    if (modelType == "QTreeModel") {
+        QTreeWidget *widget = new QTreeWidget;
+        populateTestArea(widget->model());
+        return widget->model();
+    }
+
+    Q_ASSERT(false);
+    return 0;
+}
+
+/*!
+    Fills model with some test data at least twenty rows and if possible twenty or more columns.
+    Return the parent of a row/column that can be tested.
+
+    NOTE: If readOnly is true tests will try to remove and add rows and columns.
+    If you have a tree model returning not the root index will help catch more errors.
+ */
+QModelIndex ModelsToTest::populateTestArea(QAbstractItemModel *model)
+{
+    if (QStringListModel *stringListModel = qobject_cast<QStringListModel *>(model)) {
+        QString alphabet = "a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u,v,w,x,y,z";
+        stringListModel->setStringList( alphabet.split(",") );
+        return QModelIndex();
+    }
+
+    if (qobject_cast<QStandardItemModel *>(model)) {
+        // Basic tree StandardItemModel
+        QModelIndex parent;
+        QVariant blue = QVariant(QColor(Qt::blue));
+#ifndef Q_OS_WINCE
+        for (int i = 0; i < 4; ++i) {
+#else
+        for (int i = 0; i < 2; ++i) {
+#endif
+            parent = model->index(0, 0, parent);
+            model->insertRows(0, 26 + i, parent);
+#ifndef Q_OS_WINCE
+            model->insertColumns(0, 26 + i, parent);
+#else
+            model->insertColumns(0, 4 + i, parent);
+#endif
+            // Fill in some values to make it easier to debug
+            /*
+            for (int x = 0; x < 26 + i; ++x) {
+                QString xval = QString::number(x);
+                for (int y = 0; y < 26 + i; ++y) {
+                    QString val = xval + QString::number(y) + QString::number(i);
+                    QModelIndex index = model->index(x, y, parent);
+                    model->setData(index, val);
+                    model->setData(index, blue, Qt::TextColorRole);
+                }
+            }
+            */
+        }
+        return model->index(0,0);
+    }
+
+    if (qobject_cast<QSortFilterProxyModel *>(model)) {
+        QAbstractItemModel *realModel = (qobject_cast<QSortFilterProxyModel *>(model))->sourceModel();
+        // Basic tree StandardItemModel
+        QModelIndex parent;
+        QVariant blue = QVariant(QColor(Qt::blue));
+#ifndef Q_OS_WINCE
+        for (int i = 0; i < 4; ++i) {
+#else
+        for (int i = 0; i < 2; ++i) {
+#endif
+            parent = realModel->index(0, 0, parent);
+            realModel->insertRows(0, 26+i, parent);
+#ifndef Q_OS_WINCE
+            realModel->insertColumns(0, 26+i, parent);
+#else
+            realModel->insertColumns(0, 4, parent);
+#endif
+            // Fill in some values to make it easier to debug
+            /*
+            for (int x = 0; x < 26+i; ++x) {
+                QString xval = QString::number(x);
+                for (int y = 0; y < 26 + i; ++y) {
+                    QString val = xval + QString::number(y) + QString::number(i);
+                    QModelIndex index = realModel->index(x, y, parent);
+                    realModel->setData(index, val);
+                    realModel->setData(index, blue, Qt::TextColorRole);
+                }
+            }
+            */
+        }
+        QModelIndex returnIndex = model->index(0,0);
+        Q_ASSERT(returnIndex.isValid());
+        return returnIndex;
+    }
+
+    if (QDirModel *dirModel = qobject_cast<QDirModel *>(model)) {
+        // Don't risk somthing bad happening, assert if this fails
+        Q_ASSERT(QDir(QDir::currentPath()).mkdir("test"));
+        for (int i = 0; i < 26; ++i)
+            Q_ASSERT(QDir(QDir::currentPath()).mkdir(QString("test/foo_%1").arg(i)));
+        return dirModel->index(QDir::currentPath()+"/test");
+    }
+
+    if (QSqlQueryModel *queryModel = qobject_cast<QSqlQueryModel *>(model)) {
+        QSqlQuery q;
+        q.exec("CREATE TABLE test(id int primary key, name varchar(30))");
+        q.prepare("INSERT INTO test(id, name) values (?, ?)");
+#ifndef Q_OS_WINCE
+        for (int i = 0; i < 1024; ++i) {
+#else
+        for (int i = 0; i < 512; ++i) {
+#endif
+            q.addBindValue(i);
+            q.addBindValue("Mr. Smith" + QString::number(i));
+            q.exec();
+        }
+        if (QSqlTableModel *tableModel = qobject_cast<QSqlTableModel *>(model)) {
+            tableModel->setTable("test");
+            tableModel->setEditStrategy(QSqlTableModel::OnManualSubmit);
+            tableModel->select();
+        } else {
+            queryModel->setQuery("select * from test");
+        }
+        return QModelIndex();
+    }
+
+    if (QListWidget *listWidget = qobject_cast<QListWidget *>(model->parent())) {
+#ifndef Q_OS_WINCE
+        int items = 100;
+#else
+        int items = 50;
+#endif
+        while (items--)
+            listWidget->addItem(QString("item %1").arg(items));
+        return QModelIndex();
+    }
+
+    if (QTableWidget *tableWidget = qobject_cast<QTableWidget *>(model->parent())) {
+        tableWidget->setColumnCount(20);
+        tableWidget->setRowCount(20);
+        return QModelIndex();
+    }
+
+    if (QTreeWidget *treeWidget = qobject_cast<QTreeWidget *>(model->parent())) {
+        int topItems = 20;
+        treeWidget->setColumnCount(1);
+        QTreeWidgetItem *parent;
+        while (topItems--){
+            parent = new QTreeWidgetItem(treeWidget, QStringList(QString("top %1").arg(topItems)));
+            for (int i = 0; i < 20; ++i)
+                new QTreeWidgetItem(parent, QStringList(QString("child %1").arg(topItems)));
+        }
+        return QModelIndex();
+    }
+
+    Q_ASSERT(false);
+    return QModelIndex();
+}
+
+/*!
+    If you need to cleanup from populateTest() do it here.
+    Note that this is called after every test even if populateTestArea isn't called.
+ */
+void ModelsToTest::cleanupTestArea(QAbstractItemModel *model)
+{
+    if (qobject_cast<QDirModel *>(model))
+    {
+        if (QDir(QDir::currentPath()+"/test").exists())
+        {
+            for (int i = 0; i < 26; ++i)
+                QDir::current().rmdir(QString("test/foo_%1").arg(i));
+            Q_ASSERT(QDir::current().rmdir("test"));
+        }
+    } else if (qobject_cast<QSqlQueryModel *>(model)) {
+        QSqlQuery q("DROP TABLE test");
+    }
+}
+
+void ModelsToTest::setupDatabase()
+{
+    if (!QSqlDatabase::database().isValid()) {
+        QSqlDatabase db = QSqlDatabase::addDatabase("QSQLITE");
+        db.setDatabaseName(":memory:");
+        if (!db.open()) {
+            qWarning() << "Unable to open database" << db.lastError();
+            return;
+        }
+    }
+}
+