Moved tests into integrationtests/ and widgets/

Task-number: QTBUG-19013

Change-Id: Ibb776f5967c0645ce6d22ef7afdc40657c575461
Reviewed-by: Holger Ihrig <holger.ihrig@nokia.com>

1 files changed, 777 insertions, 0 deletions

diff --git a/tests/auto/widgets/widgets/qsplitter/tst_qsplitter.cpp b/tests/auto/widgets/widgets/qsplitter/tst_qsplitter.cpp
new file mode 100644
index 0000000000..836286e8ae
--- /dev/null
+++ b/tests/auto/widgets/widgets/qsplitter/tst_qsplitter.cpp
@@ -0,0 +1,777 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 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.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** GNU Lesser General Public License Usage
+** 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.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU General
+** Public License version 3.0 as published by the Free Software Foundation
+** and appearing in the file LICENSE.GPL included in the packaging of this
+** file. Please review the following information to ensure the GNU General
+** Public License version 3.0 requirements will be met:
+** http://www.gnu.org/copyleft/gpl.html.
+**
+** Other Usage
+** Alternatively, this file may be used in accordance with the terms and
+** conditions contained in a signed written agreement between you and Nokia.
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+
+#include <QtTest/QtTest>
+#include <qapplication.h>
+#include <qsplitter.h>
+#include <qstyle.h>
+#include <qfile.h>
+#include <qtextstream.h>
+#include <qlayout.h>
+#include <qabstractscrollarea.h>
+#include <qgraphicsview.h>
+#include <qmdiarea.h>
+#include <qscrollarea.h>
+#include <qtextedit.h>
+#include <qtreeview.h>
+#include <qlabel.h>
+#include <qdebug.h> // for file error messages
+
+//TESTED_CLASS=
+//TESTED_FILES=
+
+QT_FORWARD_DECLARE_CLASS(QSplitter)
+QT_FORWARD_DECLARE_CLASS(QWidget)
+class tst_QSplitter : public QObject
+{
+    Q_OBJECT
+
+public:
+    tst_QSplitter();
+    virtual ~tst_QSplitter();
+
+public slots:
+    void initTestCase();
+    void cleanupTestCase();
+    void init();
+private slots:
+    void getSetCheck();
+    void setSizes();
+    void setSizes_data();
+    void saveAndRestoreState();
+    void saveAndRestoreState_data();
+    void saveState_data();
+    void addWidget();
+    void insertWidget();
+    void setStretchFactor_data();
+    void setStretchFactor();
+    void testShowHide_data();
+    void testShowHide();
+    void testRemoval();
+    void rubberBandNotInSplitter();
+    void saveAndRestoreStateOfNotYetShownSplitter();
+
+    // task-specific tests below me:
+    void task187373_addAbstractScrollAreas();
+    void task187373_addAbstractScrollAreas_data();
+    void task169702_sizes();
+    void taskQTBUG_4101_ensureOneNonCollapsedWidget_data();
+    void taskQTBUG_4101_ensureOneNonCollapsedWidget();
+
+private:
+    void removeThirdWidget();
+    void addThirdWidget();
+    QSplitter *splitter;
+    QWidget *w1;
+    QWidget *w2;
+    QWidget *w3;
+};
+
+// Testing get/set functions
+void tst_QSplitter::getSetCheck()
+{
+    QSplitter obj1;
+    // bool QSplitter::opaqueResize()
+    // void QSplitter::setOpaqueResize(bool)
+    obj1.setOpaqueResize(false);
+    QCOMPARE(false, obj1.opaqueResize());
+    obj1.setOpaqueResize(true);
+    QCOMPARE(true, obj1.opaqueResize());
+}
+
+tst_QSplitter::tst_QSplitter()
+    : w1(0), w2(0), w3(0)
+{
+}
+
+tst_QSplitter::~tst_QSplitter()
+{
+}
+
+void tst_QSplitter::initTestCase()
+{
+    splitter = new QSplitter(Qt::Horizontal);
+    w1 = new QWidget;
+    w2 = new QWidget;
+    splitter->addWidget(w1);
+    splitter->addWidget(w2);
+}
+
+void tst_QSplitter::init()
+{
+    removeThirdWidget();
+    w1->show();
+    w2->show();
+    w1->setMinimumSize(0, 0);
+    w2->setMinimumSize(0, 0);
+    splitter->setSizes(QList<int>() << 200 << 200);
+    qApp->sendPostedEvents();
+}
+
+void tst_QSplitter::removeThirdWidget()
+{
+    delete w3;
+    w3 = 0;
+    int handleWidth = splitter->style()->pixelMetric(QStyle::PM_SplitterWidth);
+    splitter->setFixedSize(400 + handleWidth, 400);
+}
+
+void tst_QSplitter::addThirdWidget()
+{
+    if (!w3) {
+        w3 = new QWidget;
+        splitter->addWidget(w3);
+        int handleWidth = splitter->style()->pixelMetric(QStyle::PM_SplitterWidth);
+        splitter->setFixedSize(600 + 2 * handleWidth, 400);
+    }
+}
+
+void tst_QSplitter::cleanupTestCase()
+{
+}
+
+
+typedef QList<int> IntList;
+Q_DECLARE_METATYPE(IntList)
+
+void tst_QSplitter::setSizes()
+{
+    QFETCH(IntList, minimumSizes);
+    QFETCH(IntList, splitterSizes);
+    QFETCH(IntList, collapsibleStates);
+    QFETCH(bool, childrenCollapse);
+
+    QCOMPARE(minimumSizes.size(), splitterSizes.size());
+    if (minimumSizes.size() > 2)
+        addThirdWidget();
+    for (int i = 0; i < minimumSizes.size(); ++i) {
+        QWidget *w = splitter->widget(i);
+        w->setMinimumWidth(minimumSizes.at(i));
+        splitter->setCollapsible(splitter->indexOf(w), collapsibleStates.at(i));
+    }
+    splitter->setChildrenCollapsible(childrenCollapse);
+    splitter->setSizes(splitterSizes);
+    QTEST(splitter->sizes(), "expectedSizes");
+}
+
+void tst_QSplitter::setSizes_data()
+{
+    QTest::addColumn<IntList>("minimumSizes");
+    QTest::addColumn<IntList>("splitterSizes");
+    QTest::addColumn<IntList>("expectedSizes");
+    QTest::addColumn<IntList>("collapsibleStates");
+    QTest::addColumn<bool>("childrenCollapse");
+
+    QFile file(SRCDIR "setSizes3.dat");
+    if (!file.open(QIODevice::ReadOnly)) {
+        qDebug() << "Can't open file, reason:" << file.errorString();
+        return;
+    }
+    QTextStream ts(&file);
+    ts.setIntegerBase(10);
+
+    QString dataName;
+    IntList minimumSizes;
+    IntList splitterSizes;
+    IntList expectedSizes;
+    IntList collapsibleStates;
+    int childrenCollapse;
+    while (!ts.atEnd()) {
+        int i1, i2, i3;
+        minimumSizes.clear();
+        splitterSizes.clear();
+        expectedSizes.clear();
+        collapsibleStates.clear();
+        ts >> dataName;
+        ts >> i1 >> i2 >> i3;
+        minimumSizes << i1 << i2 << i3;
+        ts >> i1 >> i2 >> i3;
+        splitterSizes << i1 << i2 << i3;
+        ts >> i1 >> i2 >> i3;
+        expectedSizes << i1 << i2 << i3;
+        ts >> i1 >> i2 >> i3;
+        collapsibleStates << i1 << i2 << i3;
+        ts >> childrenCollapse;
+        QTest::newRow(dataName.toLocal8Bit()) << minimumSizes << splitterSizes << expectedSizes << collapsibleStates << bool(childrenCollapse);
+        ts.skipWhiteSpace();
+    }
+}
+
+void tst_QSplitter::saveAndRestoreState_data()
+{
+    saveState_data();
+}
+
+void tst_QSplitter::saveAndRestoreState()
+{
+    QFETCH(IntList, initialSizes);
+    splitter->setSizes(initialSizes);
+    QApplication::instance()->sendPostedEvents();
+    
+    QSplitter *splitter2 = new QSplitter(splitter->orientation() == Qt::Horizontal ?
+                                         Qt::Vertical : Qt::Horizontal);
+    for (int i = 0; i < splitter->count(); ++i) {
+        splitter2->addWidget(new QWidget());        
+    }
+    splitter2->resize(splitter->size());    
+    splitter2->setChildrenCollapsible(!splitter->childrenCollapsible());
+    splitter2->setOpaqueResize(!splitter->opaqueResize());
+    splitter2->setHandleWidth(splitter->handleWidth()+3);
+    
+    QByteArray ba = splitter->saveState();
+    QVERIFY(splitter2->restoreState(ba));
+
+    QCOMPARE(splitter2->orientation(), splitter->orientation());
+    QCOMPARE(splitter2->handleWidth(), splitter->handleWidth());
+    QCOMPARE(splitter2->opaqueResize(), splitter->opaqueResize());
+    QCOMPARE(splitter2->childrenCollapsible(), splitter->childrenCollapsible());
+
+    QList<int> l1 = splitter->sizes();
+    QList<int> l2 = splitter2->sizes();
+    QCOMPARE(l1.size(), l2.size());
+    for (int i = 0; i < splitter->sizes().size(); ++i) {
+        QCOMPARE(l2.at(i), l1.at(i));
+    }
+
+    // destroy version and magic number
+    for (int i = 0; i < ba.size(); ++i) 
+        ba[i] = ~ba.at(i);
+    QVERIFY(!splitter2->restoreState(ba));
+    
+    delete splitter2;
+}
+
+void tst_QSplitter::saveAndRestoreStateOfNotYetShownSplitter()
+{
+    QSplitter *spl = new QSplitter;
+    QLabel *l1 = new QLabel;
+    QLabel *l2 = new QLabel;
+    spl->addWidget(l1);
+    spl->addWidget(l2);
+
+    QByteArray ba = spl->saveState();
+    spl->restoreState(ba);
+    spl->show();
+    QTest::qWait(500);
+
+    QCOMPARE(l1->geometry().isValid(), true);
+    QCOMPARE(l2->geometry().isValid(), true);
+
+    delete spl;
+}
+
+void tst_QSplitter::saveState_data()
+{
+    QTest::addColumn<IntList>("initialSizes");
+    QTest::addColumn<bool>("hideWidget1");
+    QTest::addColumn<bool>("hideWidget2");
+    QTest::addColumn<QByteArray>("finalBa");
+
+    QTest::newRow("ok0") << (IntList() << 200 << 200) << bool(false) << bool(false) << QByteArray("[200,200]");
+    QTest::newRow("ok1") << (IntList() << 300 << 100) << bool(false) << bool(false) << QByteArray("[300,100]");
+    QTest::newRow("ok2") << (IntList() << 100 << 300) << bool(false) << bool(false) << QByteArray("[100,300]");
+    QTest::newRow("ok3") << (IntList() << 200 << 200) << bool(false) << bool(true) << QByteArray("[200,H]");
+    QTest::newRow("ok4") << (IntList() << 200 << 200) << bool(true) << bool(false) << QByteArray("[H,200]");
+    QTest::newRow("ok5") << (IntList() << 200 << 200) << bool(false) << bool(false) << QByteArray("[200,200]");
+    QTest::newRow("ok6") << (IntList() << 200 << 200) << bool(false) << bool(false) << QByteArray("[200,200]");
+    QTest::newRow("ok7") << (IntList() << 200 << 200) << bool(false) << bool(false) << QByteArray("[200,200]");
+    QTest::newRow("ok8") << (IntList() << 200 << 200) << bool(true) << bool(true) << QByteArray("[H,H]");
+}
+
+void tst_QSplitter::addWidget()
+{
+    QSplitter split;
+
+    // Simple case
+    QWidget *widget1 = new QWidget;
+    QWidget *widget2 = new QWidget;
+    split.addWidget(widget1);
+    split.addWidget(widget2);
+    QCOMPARE(split.count(), 2);
+    QCOMPARE(split.indexOf(widget1), 0);
+    QCOMPARE(split.indexOf(widget2), 1);
+    QCOMPARE(split.widget(0), widget1);
+    QCOMPARE(split.widget(1), widget2);
+
+
+    // Implicit Add
+    QWidget *widget3 = new QWidget(&split);
+    QCOMPARE(split.count(), 3);
+    QCOMPARE(split.indexOf(widget3), 2);
+    QCOMPARE(split.widget(2), widget3);
+
+    // Try and add it again
+    split.addWidget(widget3);
+    QCOMPARE(split.count(), 3);
+    QCOMPARE(split.indexOf(widget3), 2);
+    QCOMPARE(split.widget(2), widget3);
+
+    // Add a widget that is already in the splitter
+    split.addWidget(widget1);
+    QCOMPARE(split.count(), 3);
+    QCOMPARE(split.indexOf(widget1), 2);
+    QCOMPARE(split.widget(0), widget2);
+    QCOMPARE(split.widget(1), widget3);
+    QCOMPARE(split.widget(2), widget1);
+
+    // Change a widget's parent
+    widget2->setParent(0);
+    QCOMPARE(split.count(), 2);
+    QCOMPARE(split.indexOf(widget2), -1);
+
+
+    // Add the widget in again.
+    split.addWidget(widget2);
+    QCOMPARE(split.count(), 3);
+    QCOMPARE(split.indexOf(widget2), 2);
+    QCOMPARE(split.widget(0), widget3);
+    QCOMPARE(split.widget(1), widget1);
+    QCOMPARE(split.widget(2), widget2);
+
+    // Delete a widget
+    delete widget1;
+    QCOMPARE(split.count(), 2);
+    QCOMPARE(split.indexOf(widget1), -1); // Nasty
+    QCOMPARE(split.widget(0), widget3);
+    QCOMPARE(split.widget(1), widget2);
+
+    delete widget2;
+}
+
+void tst_QSplitter::insertWidget()
+{
+    QSplitter split;
+    QWidget *widget1 = new QWidget;
+    QWidget *widget2 = new QWidget;
+    QWidget *widget3 = new QWidget;
+
+    split.insertWidget(0, widget1);
+    QCOMPARE(split.count(), 1);
+    QCOMPARE(split.indexOf(widget1), 0);
+    QCOMPARE(split.widget(0), widget1);
+
+    split.insertWidget(0, widget2);
+    QCOMPARE(split.count(), 2);
+    QCOMPARE(split.indexOf(widget1), 1);
+    QCOMPARE(split.indexOf(widget2), 0);
+    QCOMPARE(split.widget(0), widget2);
+    QCOMPARE(split.widget(1), widget1);
+
+    split.insertWidget(1, widget3);
+    QCOMPARE(split.count(), 3);
+    QCOMPARE(split.indexOf(widget1), 2);
+    QCOMPARE(split.indexOf(widget2), 0);
+    QCOMPARE(split.indexOf(widget3), 1);
+    QCOMPARE(split.widget(0), widget2);
+    QCOMPARE(split.widget(1), widget3);
+    QCOMPARE(split.widget(2), widget1);
+
+    delete widget3;
+    QCOMPARE(split.count(), 2);
+    QCOMPARE(split.indexOf(widget1), 1);
+    QCOMPARE(split.indexOf(widget2), 0);
+    QCOMPARE(split.widget(0), widget2);
+    QCOMPARE(split.widget(1), widget1);
+
+    widget3 = new QWidget;
+    split.insertWidget(split.count() + 1, widget3);
+    QCOMPARE(split.count(), 3);
+    QCOMPARE(split.indexOf(widget1), 1);
+    QCOMPARE(split.indexOf(widget2), 0);
+    QCOMPARE(split.indexOf(widget3), 2);
+    QCOMPARE(split.widget(0), widget2);
+    QCOMPARE(split.widget(1), widget1);
+    QCOMPARE(split.widget(2), widget3);
+
+
+    // Try it again,
+    split.insertWidget(split.count() + 1, widget3);
+    QCOMPARE(split.count(), 3);
+    QCOMPARE(split.indexOf(widget1), 1);
+    QCOMPARE(split.indexOf(widget2), 0);
+    QCOMPARE(split.indexOf(widget3), 2);
+    QCOMPARE(split.widget(0), widget2);
+    QCOMPARE(split.widget(1), widget1);
+    QCOMPARE(split.widget(2), widget3);
+
+    // Try to move widget2 to a bad place
+    split.insertWidget(-1, widget2);
+    QCOMPARE(split.count(), 3);
+    QCOMPARE(split.indexOf(widget1), 0);
+    QCOMPARE(split.indexOf(widget2), 2);
+    QCOMPARE(split.indexOf(widget3), 1);
+    QCOMPARE(split.widget(0), widget1);
+    QCOMPARE(split.widget(1), widget3);
+    QCOMPARE(split.widget(2), widget2);
+
+    QWidget *widget4 = new QWidget(&split);
+    QCOMPARE(split.count(), 4);
+    QCOMPARE(split.indexOf(widget1), 0);
+    QCOMPARE(split.indexOf(widget2), 2);
+    QCOMPARE(split.indexOf(widget3), 1);
+    QCOMPARE(split.indexOf(widget4), 3);
+    QCOMPARE(split.widget(0), widget1);
+    QCOMPARE(split.widget(1), widget3);
+    QCOMPARE(split.widget(2), widget2);
+    QCOMPARE(split.widget(3), widget4);
+
+    QWidget *widget5 = new QWidget(&split);
+    QCOMPARE(split.count(), 5);
+    QCOMPARE(split.indexOf(widget1), 0);
+    QCOMPARE(split.indexOf(widget2), 2);
+    QCOMPARE(split.indexOf(widget3), 1);
+    QCOMPARE(split.indexOf(widget4), 3);
+    QCOMPARE(split.indexOf(widget5), 4);
+    QCOMPARE(split.widget(0), widget1);
+    QCOMPARE(split.widget(1), widget3);
+    QCOMPARE(split.widget(2), widget2);
+    QCOMPARE(split.widget(3), widget4);
+    QCOMPARE(split.widget(4), widget5);
+
+    split.insertWidget(2, widget4);
+    QCOMPARE(split.count(), 5);
+    QCOMPARE(split.indexOf(widget1), 0);
+    QCOMPARE(split.indexOf(widget2), 3);
+    QCOMPARE(split.indexOf(widget3), 1);
+    QCOMPARE(split.indexOf(widget4), 2);
+    QCOMPARE(split.indexOf(widget5), 4);
+    QCOMPARE(split.widget(0), widget1);
+    QCOMPARE(split.widget(1), widget3);
+    QCOMPARE(split.widget(2), widget4);
+    QCOMPARE(split.widget(3), widget2);
+    QCOMPARE(split.widget(4), widget5);
+
+    split.insertWidget(1, widget5);
+    QCOMPARE(split.count(), 5);
+    QCOMPARE(split.indexOf(widget1), 0);
+    QCOMPARE(split.indexOf(widget2), 4);
+    QCOMPARE(split.indexOf(widget3), 2);
+    QCOMPARE(split.indexOf(widget4), 3);
+    QCOMPARE(split.indexOf(widget5), 1);
+    QCOMPARE(split.widget(0), widget1);
+    QCOMPARE(split.widget(1), widget5);
+    QCOMPARE(split.widget(2), widget3);
+    QCOMPARE(split.widget(3), widget4);
+    QCOMPARE(split.widget(4), widget2);
+}
+
+void tst_QSplitter::setStretchFactor_data()
+{
+    QTest::addColumn<int>("orientation");
+    QTest::addColumn<int>("widgetIndex");
+    QTest::addColumn<int>("stretchFactor");
+    QTest::addColumn<int>("expectedHStretch");
+    QTest::addColumn<int>("expectedVStretch");
+
+    QTest::newRow("ok01") << int(Qt::Horizontal) << 1 << 2 << 2 << 2;
+    QTest::newRow("ok02") << int(Qt::Horizontal) << 2 << 0 << 0 << 0;
+    QTest::newRow("ok03") << int(Qt::Horizontal) << 3 << 1 << 1 << 1;
+    QTest::newRow("ok04") << int(Qt::Horizontal) << 0 << 7 << 7 << 7;
+    QTest::newRow("ok05") << int(Qt::Vertical) << 0 << 0 << 0 << 0;
+    QTest::newRow("ok06") << int(Qt::Vertical) << 1 << 1 << 1 << 1;
+    QTest::newRow("ok07") << int(Qt::Vertical) << 2 << 2 << 2 << 2;
+    QTest::newRow("ok08") << int(Qt::Vertical) << 3 << 5 << 5 << 5;
+    QTest::newRow("ok08") << int(Qt::Vertical) << -1 << 5 << 0 << 0;
+}
+
+void tst_QSplitter::setStretchFactor()
+{
+    QFETCH(int, orientation);
+    Qt::Orientation orient = Qt::Orientation(orientation);
+    QSplitter split(orient);
+    QWidget *w = new QWidget;
+    split.addWidget(w);
+    w = new QWidget;
+    split.addWidget(w);
+    w = new QWidget;
+    split.addWidget(w);
+    w = new QWidget;
+    split.addWidget(w);
+
+    QFETCH(int, widgetIndex);
+    QFETCH(int, stretchFactor);
+    w = split.widget(widgetIndex);
+    QSizePolicy sp;
+    if (w) {
+        QCOMPARE(sp.horizontalStretch(), 0);
+        QCOMPARE(sp.verticalStretch(), 0);
+    }
+    split.setStretchFactor(widgetIndex, stretchFactor);
+    if (w)
+        sp = w->sizePolicy();
+    QTEST(sp.horizontalStretch(), "expectedHStretch");
+    QTEST(sp.verticalStretch(), "expectedVStretch");
+}
+
+void tst_QSplitter::testShowHide_data()
+{
+    QTest::addColumn<bool>("hideWidget1");
+    QTest::addColumn<bool>("hideWidget2");
+    QTest::addColumn<QList<int> >("finalValues");
+    QTest::addColumn<bool>("handleVisible");
+
+    QSplitter *split = new QSplitter(Qt::Horizontal);
+    QTest::newRow("hideNone") << false << false << (QList<int>() << 200 << 200) << true;
+    QTest::newRow("hide2") << false << true << (QList<int>() << 400 + split->handleWidth() << 0) << false;
+    QTest::newRow("hide1") << true << false << (QList<int>() << 0 << 400 + split->handleWidth()) << false;
+    QTest::newRow("hideall") << true << true << (QList<int>() << 0 << 0) << false;
+    delete split;
+}
+
+void tst_QSplitter::testShowHide()
+{
+    QFETCH(bool, hideWidget1);
+    QFETCH(bool, hideWidget2);
+
+    QSplitter *split = new QSplitter(Qt::Horizontal);
+
+    QWidget topLevel;
+    QWidget widget(&topLevel);
+    widget.resize(400 + split->handleWidth(), 200);
+    QVBoxLayout *lay=new QVBoxLayout(&widget);
+    lay->setMargin(0);
+    lay->setSpacing(0);
+    split->addWidget(new QWidget);
+    split->addWidget(new QWidget);
+    split->setSizes(QList<int>() << 200 << 200);
+    lay->addWidget(split);
+    widget.setLayout(lay);
+    topLevel.show();
+
+    QTest::qWait(100);
+
+    widget.hide();
+    split->widget(0)->setHidden(hideWidget1);
+    split->widget(1)->setHidden(hideWidget2);
+    widget.show();
+    QTest::qWait(100);
+
+    QTEST(split->sizes(), "finalValues");
+    QTEST(split->handle(1)->isVisible(), "handleVisible");
+}
+
+void tst_QSplitter::testRemoval()
+{
+
+    // This test relies on the internal structure of QSplitter That is, that
+    // there is a handle before every splitter, but sometimes that handle is
+    // hidden. But definiately when something is removed the front handle
+    // should not be visible.
+
+    QSplitter split;
+    split.addWidget(new QWidget);
+    split.addWidget(new QWidget);
+    split.show();
+    QTest::qWait(100);
+
+    QCOMPARE(split.handle(0)->isVisible(), false);
+    QSplitterHandle *handle = split.handle(1);
+    QCOMPARE(handle->isVisible(), true);
+
+    delete split.widget(0);
+    QSplitterHandle *sameHandle = split.handle(0);
+    QCOMPARE(handle, sameHandle);
+    QCOMPARE(sameHandle->isVisible(), false);
+}
+
+class MyFriendlySplitter : public QSplitter
+{
+public:
+    MyFriendlySplitter(QWidget *parent = 0) : QSplitter(parent) {}
+    void setRubberBand(int pos) { QSplitter::setRubberBand(pos); }
+
+    friend class tst_QSplitter;
+};
+
+void tst_QSplitter::rubberBandNotInSplitter()
+{
+    MyFriendlySplitter split;
+    split.addWidget(new QWidget);
+    split.addWidget(new QWidget);
+    split.setOpaqueResize(false);
+    QCOMPARE(split.count(), 2);
+    split.setRubberBand(2);
+    QCOMPARE(split.count(), 2);
+}
+
+void tst_QSplitter::task187373_addAbstractScrollAreas_data()
+{
+    QTest::addColumn<QString>("className");
+    QTest::addColumn<bool>("addInConstructor");
+    QTest::addColumn<bool>("addOutsideConstructor");
+
+    QStringList classNames;
+    classNames << QLatin1String("QGraphicsView");
+    classNames << QLatin1String("QMdiArea");
+    classNames << QLatin1String("QScrollArea");
+    classNames << QLatin1String("QTextEdit");
+    classNames << QLatin1String("QTreeView");
+
+    foreach (QString className, classNames) {
+        QTest::newRow(qPrintable(QString("%1 1").arg(className))) << className << false << true;
+        QTest::newRow(qPrintable(QString("%1 2").arg(className))) << className << true << false;
+        QTest::newRow(qPrintable(QString("%1 3").arg(className))) << className << true << true;
+    }
+}
+
+static QAbstractScrollArea *task187373_createScrollArea(
+    QSplitter *splitter, const QString &className, bool addInConstructor)
+{
+    if (className == QLatin1String("QGraphicsView"))
+        return new QGraphicsView(addInConstructor ? splitter : 0);
+    if (className == QLatin1String("QMdiArea"))
+        return new QMdiArea(addInConstructor ? splitter : 0);
+    if (className == QLatin1String("QScrollArea"))
+        return new QScrollArea(addInConstructor ? splitter : 0);
+    if (className == QLatin1String("QTextEdit"))
+        return new QTextEdit(addInConstructor ? splitter : 0);
+    if (className == QLatin1String("QTreeView"))
+        return new QTreeView(addInConstructor ? splitter : 0);
+    return 0;
+}
+
+void tst_QSplitter::task187373_addAbstractScrollAreas()
+{
+    QFETCH(QString, className);
+    QFETCH(bool, addInConstructor);
+    QFETCH(bool, addOutsideConstructor);
+    QVERIFY(addInConstructor || addOutsideConstructor);
+
+    QSplitter *splitter = new QSplitter;
+    splitter->show();
+    QVERIFY(splitter->isVisible());
+
+    QAbstractScrollArea *w = task187373_createScrollArea(splitter, className, addInConstructor);
+    QVERIFY(w);
+    if (addOutsideConstructor)
+        splitter->addWidget(w);
+
+    QTRY_VERIFY(w->isVisible());
+    QVERIFY(!w->isHidden());
+    QVERIFY(w->viewport()->isVisible());
+    QVERIFY(!w->viewport()->isHidden());
+}
+
+//! A simple QTextEdit which can switch between two different size states
+class MyTextEdit : public QTextEdit 
+{
+    public:
+        MyTextEdit(const QString & text, QWidget* parent = NULL)
+            : QTextEdit(text, parent) ,  m_iFactor(1)
+        {
+            setSizePolicy(QSizePolicy::Maximum, QSizePolicy::Maximum);
+        }
+        virtual QSize minimumSizeHint () const
+        {
+            return QSize(200, 200) * m_iFactor;
+        }
+        virtual QSize sizeHint() const
+        {
+            return QSize(390, 390) * m_iFactor;
+        }
+        int m_iFactor;
+};
+
+void tst_QSplitter::task169702_sizes()
+{
+    QWidget topLevel;
+    // Create two nested (non-collapsible) splitters
+    QSplitter* outerSplitter = new QSplitter(Qt::Vertical, &topLevel);
+    outerSplitter->setChildrenCollapsible(false);
+    QSplitter* splitter = new QSplitter(Qt::Horizontal, outerSplitter);
+    splitter->setChildrenCollapsible(false);
+
+    // populate the outer splitter
+    outerSplitter->addWidget(new QTextEdit("Foo"));
+    outerSplitter->addWidget(splitter);
+    outerSplitter->setStretchFactor(0, 1);
+    outerSplitter->setStretchFactor(1, 0);
+
+    // populate the inner splitter
+    MyTextEdit* testW = new MyTextEdit("TextEdit with size restriction");
+    splitter->addWidget(testW);
+    splitter->addWidget(new QTextEdit("Bar"));
+
+    outerSplitter->setGeometry(100, 100, 500, 500);
+    topLevel.show();
+
+    QTest::qWait(100);
+    testW->m_iFactor++;
+    testW->updateGeometry();
+    QTest::qWait(500);//100 is too fast for Maemo
+
+    //Make sure the minimimSizeHint is respected
+    QCOMPARE(testW->size().height(), testW->minimumSizeHint().height());
+}
+
+void tst_QSplitter::taskQTBUG_4101_ensureOneNonCollapsedWidget_data()
+{
+    QTest::addColumn<bool>("testingHide");
+
+    QTest::newRow("last non collapsed hidden") << true;
+    QTest::newRow("last non collapsed deleted") << false;
+}
+
+void tst_QSplitter::taskQTBUG_4101_ensureOneNonCollapsedWidget()
+{
+    QFETCH(bool, testingHide);
+
+    MyFriendlySplitter s;
+    QLabel *l;
+    for (int i = 0; i < 5; ++i) {
+        l = new QLabel(QString("Label ") + QChar('A' + i));
+        l->setAlignment(Qt::AlignCenter);
+        s.addWidget(l);
+        s.moveSplitter(0, i);  // Collapse all the labels except the last one.
+    }
+
+    s.show();
+    if (testingHide)
+        l->hide();
+    else
+        delete l;
+    QTest::qWait(100);
+    QVERIFY(s.sizes().at(0) > 0);
+}
+
+QTEST_MAIN(tst_QSplitter)
+#include "tst_qsplitter.moc"