Tests: Fix some compile warnings.

As they are now compiled by default.

40 files changed, 76 insertions, 49 deletions

diff --git a/tests/auto/modeltest/modeltest.cpp b/tests/auto/modeltest/modeltest.cpp
index ec1091abfa..f60f86d09c 100644
--- a/tests/auto/modeltest/modeltest.cpp
+++ b/tests/auto/modeltest/modeltest.cpp
@@ -470,7 +470,7 @@ void ModelTest::data()
 
     \sa rowsInserted()
  */
-void ModelTest::rowsAboutToBeInserted ( const QModelIndex &parent, int start, int end )
+void ModelTest::rowsAboutToBeInserted ( const QModelIndex &parent, int start, int /* end */)
 {
 //     Q_UNUSED(end);
 //    qDebug() << "rowsAboutToBeInserted" << "start=" << start << "end=" << end << "parent=" << model->data ( parent ).toString()
diff --git a/tests/auto/qabstractscrollarea/tst_qabstractscrollarea.cpp b/tests/auto/qabstractscrollarea/tst_qabstractscrollarea.cpp
index f15244525d..3c202920d6 100644
--- a/tests/auto/qabstractscrollarea/tst_qabstractscrollarea.cpp
+++ b/tests/auto/qabstractscrollarea/tst_qabstractscrollarea.cpp
@@ -299,7 +299,7 @@ public:
         startTimer(2000);
     }
 
-    void timerEvent(QTimerEvent *event)
+    void timerEvent(QTimerEvent * /* event */)
     {
         // should not crash.
         (void)new QScrollArea(this);
diff --git a/tests/auto/qabstracttextdocumentlayout/tst_qabstracttextdocumentlayout.cpp b/tests/auto/qabstracttextdocumentlayout/tst_qabstracttextdocumentlayout.cpp
index 11730f277c..8dfa37fc39 100644
--- a/tests/auto/qabstracttextdocumentlayout/tst_qabstracttextdocumentlayout.cpp
+++ b/tests/auto/qabstracttextdocumentlayout/tst_qabstracttextdocumentlayout.cpp
@@ -90,7 +90,7 @@ public:
     QSizeF documentSize() const { return QSizeF(); }
     QRectF frameBoundingRect(QTextFrame *) const { return QRectF(); }
     QRectF blockBoundingRect(const QTextBlock &) const { return QRectF(); }
-    void documentChanged(int from, int oldLength, int length) {
+    void documentChanged(int from, int /* oldLength */, int length) {
         ++changeEvents;
 
         QTextBlock last = document()->lastBlock();
diff --git a/tests/auto/qapplication/modal/main.cpp b/tests/auto/qapplication/modal/main.cpp
index 2365991084..8ff6f330fd 100644
--- a/tests/auto/qapplication/modal/main.cpp
+++ b/tests/auto/qapplication/modal/main.cpp
@@ -49,5 +49,6 @@ int main(int argc, char *argv[])
     QApplication app(argc, argv);
     QApplication::setAttribute(Qt::AA_NativeWindows); //QTBUG-15774
     base *b = new base();
+    Q_UNUSED(b);
     return app.exec();
 }
diff --git a/tests/auto/qcssparser/tst_qcssparser.cpp b/tests/auto/qcssparser/tst_qcssparser.cpp
index 86cca2daae..ddee2dd713 100644
--- a/tests/auto/qcssparser/tst_qcssparser.cpp
+++ b/tests/auto/qcssparser/tst_qcssparser.cpp
@@ -148,7 +148,7 @@ void tst_QCssParser::scanner_data()
 }
 
 
-static char *tokenName(QCss::TokenType t)
+static const char *tokenName(QCss::TokenType t)
 {
     switch (t) {
         case QCss::NONE: return "NONE";
diff --git a/tests/auto/qdir/tst_qdir.cpp b/tests/auto/qdir/tst_qdir.cpp
index bc5c6872ee..0843633bdc 100644
--- a/tests/auto/qdir/tst_qdir.cpp
+++ b/tests/auto/qdir/tst_qdir.cpp
@@ -974,6 +974,7 @@ void tst_QDir::cd()
 
     QDir d = startDir;
     bool notUsed = d.exists(); // make sure we cache this before so we can see if 'cd' fails to flush this
+    Q_UNUSED(notUsed);
     QCOMPARE(d.cd(cdDir), successExpected);
     if (successExpected)
         QCOMPARE(d.absolutePath(), newDir);
diff --git a/tests/auto/qfile/tst_qfile.cpp b/tests/auto/qfile/tst_qfile.cpp
index 688a92d04b..a0db699c42 100644
--- a/tests/auto/qfile/tst_qfile.cpp
+++ b/tests/auto/qfile/tst_qfile.cpp
@@ -333,6 +333,8 @@ private:
             case OpenRFile:
                 return openRFile(file, mode, handleFlags);
 #endif
+            case NumberOfFileTypes:
+                break;
         }
 
         return false;
diff --git a/tests/auto/qfuture/tst_qfuture.cpp b/tests/auto/qfuture/tst_qfuture.cpp
index 8afdf48fc3..26d96f0f81 100644
--- a/tests/auto/qfuture/tst_qfuture.cpp
+++ b/tests/auto/qfuture/tst_qfuture.cpp
@@ -1453,6 +1453,7 @@ void tst_QFuture::exceptions_QTBUG18149()
 
     try {
         MyClass m;
+        Q_UNUSED(m);
         throw 0;
     } catch (int) {}
 
diff --git a/tests/auto/qgraphicsitem/tst_qgraphicsitem.cpp b/tests/auto/qgraphicsitem/tst_qgraphicsitem.cpp
index f8bf7a1b3c..b55130965a 100644
--- a/tests/auto/qgraphicsitem/tst_qgraphicsitem.cpp
+++ b/tests/auto/qgraphicsitem/tst_qgraphicsitem.cpp
@@ -110,7 +110,7 @@ static void sendMousePress(QGraphicsScene *scene, const QPointF &point, Qt::Mous
 }
 
 static void sendMouseMove(QGraphicsScene *scene, const QPointF &point,
-                          Qt::MouseButton button = Qt::NoButton, Qt::MouseButtons buttons = 0)
+                          Qt::MouseButton button = Qt::NoButton, Qt::MouseButtons /* buttons */ = 0)
 {
     QGraphicsSceneMouseEvent event(QEvent::GraphicsSceneMouseMove);
     event.setScenePos(point);
@@ -794,6 +794,7 @@ void tst_QGraphicsItem::deleteChildItem()
     QGraphicsItem *child1 = new QGraphicsRectItem(rect);
     QGraphicsItem *child2 = new QGraphicsRectItem(rect);
     QGraphicsItem *child3 = new QGraphicsRectItem(rect);
+    Q_UNUSED(child3);
     delete child1;
     child2->setParentItem(0);
     delete child2;
diff --git a/tests/auto/qgraphicslayout/tst_qgraphicslayout.cpp b/tests/auto/qgraphicslayout/tst_qgraphicslayout.cpp
index 29ea07460e..6f08a5dad1 100644
--- a/tests/auto/qgraphicslayout/tst_qgraphicslayout.cpp
+++ b/tests/auto/qgraphicslayout/tst_qgraphicslayout.cpp
@@ -644,7 +644,7 @@ void AnimatedLayoutItem::setGeometry(const QRectF &geom)
     QGraphicsLayoutItem::setGeometry(geom);
 }
 
-QSizeF AnimatedLayoutItem::sizeHint(Qt::SizeHint which, const QSizeF &constraint) const
+QSizeF AnimatedLayoutItem::sizeHint(Qt::SizeHint which, const QSizeF & /* constraint */) const
 {
     switch (which) {
     case Qt::MinimumSize:
@@ -760,7 +760,7 @@ private:
     QSet<QGraphicsLayoutItem*> *m_destructedSet;
 };
 
-QSizeF CustomLayoutItem::sizeHint(Qt::SizeHint which, const QSizeF &constraint) const
+QSizeF CustomLayoutItem::sizeHint(Qt::SizeHint which, const QSizeF & /* constraint */) const
 {
     switch (which) {
     case Qt::MinimumSize:
@@ -800,7 +800,7 @@ private:
     QSet<QGraphicsLayoutItem*> *m_destructedSet;
 };
 
-QSizeF CustomGraphicsWidget::sizeHint(Qt::SizeHint which, const QSizeF &constraint) const
+QSizeF CustomGraphicsWidget::sizeHint(Qt::SizeHint which, const QSizeF & /* constraint */) const
 {
     switch (which) {
     case Qt::MinimumSize:
@@ -889,7 +889,7 @@ void updateParentWidget(QGraphicsWidget *item)
     }
 }
 
-QSizeF sizeHint(Qt::SizeHint which, const QSizeF &constraint) const
+QSizeF sizeHint(Qt::SizeHint /* which */, const QSizeF & /* constraint */) const
 {
     return QSizeF(50,50);
 }
diff --git a/tests/auto/qgraphicslinearlayout/tst_qgraphicslinearlayout.cpp b/tests/auto/qgraphicslinearlayout/tst_qgraphicslinearlayout.cpp
index 8f8ac67d09..b3e4a88edf 100644
--- a/tests/auto/qgraphicslinearlayout/tst_qgraphicslinearlayout.cpp
+++ b/tests/auto/qgraphicslinearlayout/tst_qgraphicslinearlayout.cpp
@@ -299,7 +299,7 @@ void tst_QGraphicsLinearLayout::alignment()
 
     int i;
     bool addWidget = true;
-    for (i = 0; i < sizeof(alignmentsToTest)/sizeof(Qt::Alignment); ++i) {
+    for (size_t i = 0; i < sizeof(alignmentsToTest)/sizeof(Qt::Alignment); ++i) {
         QGraphicsLayoutItem *loutItem;
         Qt::Alignment align = alignmentsToTest[i];
         if (!align && i > 0)
@@ -1139,6 +1139,7 @@ void tst_QGraphicsLinearLayout::testStretch()
 {
     QGraphicsScene scene;
     QGraphicsView *view = new QGraphicsView(&scene);
+    Q_UNUSED(view);
     QGraphicsWidget *form = new QGraphicsWidget(0, Qt::Window);
 
     scene.addItem(form);
diff --git a/tests/auto/qgraphicsobject/tst_qgraphicsobject.cpp b/tests/auto/qgraphicsobject/tst_qgraphicsobject.cpp
index 5619766a71..93af2e0443 100644
--- a/tests/auto/qgraphicsobject/tst_qgraphicsobject.cpp
+++ b/tests/auto/qgraphicsobject/tst_qgraphicsobject.cpp
@@ -284,6 +284,7 @@ void tst_QGraphicsObject::deleted()
     bool item2_wasDeleted = false;
     DeleteTester *item1 = new DeleteTester(&item1_wasDeleted, &item1_parentWasDeleted);
     DeleteTester *item2 = new DeleteTester(&item2_wasDeleted, &item2_parentWasDeleted, item1);
+    Q_UNUSED(item2);
     delete item1;
 
     QVERIFY(!item1_wasDeleted); // destructor not called yet
diff --git a/tests/auto/qgraphicssceneindex/tst_qgraphicssceneindex.cpp b/tests/auto/qgraphicssceneindex/tst_qgraphicssceneindex.cpp
index 80629c54cf..fe949742cd 100644
--- a/tests/auto/qgraphicssceneindex/tst_qgraphicssceneindex.cpp
+++ b/tests/auto/qgraphicssceneindex/tst_qgraphicssceneindex.cpp
@@ -290,7 +290,7 @@ public:
     {
     }
 
-    void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)
+    void paint(QPainter *painter, const QStyleOptionGraphicsItem * /* option */, QWidget * /* widget */)
     {
         painter->setBrush(brush);
         painter->drawRect(boundingRect());
@@ -348,7 +348,7 @@ void tst_QGraphicsSceneIndex::clear()
         int numPaints;
     protected:
         QRectF boundingRect() const { return QRectF(0, 0, 10, 10); }
-        void paint(QPainter *painter, const QStyleOptionGraphicsItem *, QWidget *)
+        void paint(QPainter * /* painter */, const QStyleOptionGraphicsItem *, QWidget *)
         { ++numPaints; }
     };
 
diff --git a/tests/auto/qgraphicsview/tst_qgraphicsview.cpp b/tests/auto/qgraphicsview/tst_qgraphicsview.cpp
index ca6b4d285e..2d02ec052f 100644
--- a/tests/auto/qgraphicsview/tst_qgraphicsview.cpp
+++ b/tests/auto/qgraphicsview/tst_qgraphicsview.cpp
@@ -4009,7 +4009,7 @@ public:
         m_viewHasIMEnabledInFocusInEvent = false;
     }
 
-    void focusInEvent(QFocusEvent *event)
+    void focusInEvent(QFocusEvent * /* event */)
     {
         QGraphicsView *view = scene()->views().first();
         m_viewHasIMEnabledInFocusInEvent = view->testAttribute(Qt::WA_InputMethodEnabled);
@@ -4403,7 +4403,7 @@ void tst_QGraphicsView::QTBUG_5859_exposedRect()
     {
     public:
         CustomScene(const QRectF &rect) : QGraphicsScene(rect) { }
-        void drawBackground(QPainter *painter, const QRectF &rect)
+        void drawBackground(QPainter * /* painter */, const QRectF &rect)
         { lastBackgroundExposedRect = rect; }
         QRectF lastBackgroundExposedRect;
     };
@@ -4413,7 +4413,7 @@ void tst_QGraphicsView::QTBUG_5859_exposedRect()
     public:
         CustomRectItem(const QRectF &rect) : QGraphicsRectItem(rect)
         { setFlag(QGraphicsItem::ItemUsesExtendedStyleOption); }
-        void paint(QPainter * painter, const QStyleOptionGraphicsItem *option, QWidget *widget = 0)
+        void paint(QPainter * /* painter */, const QStyleOptionGraphicsItem *option, QWidget * /* widget */ = 0)
         { lastExposedRect = option->exposedRect; }
         QRectF lastExposedRect;
     };
@@ -4528,7 +4528,7 @@ public:
         setFlag(QGraphicsItem::ItemAcceptsInputMethod, true);
     }
 
-    QVariant inputMethodQuery(Qt::InputMethodQuery query) const
+    QVariant inputMethodQuery(Qt::InputMethodQuery) const
     {
         return mf;
     }
diff --git a/tests/auto/qhttp/tst_qhttp.cpp b/tests/auto/qhttp/tst_qhttp.cpp
index 61123c297f..96346cc91a 100644
--- a/tests/auto/qhttp/tst_qhttp.cpp
+++ b/tests/auto/qhttp/tst_qhttp.cpp
@@ -772,6 +772,7 @@ void tst_QHttp::authorization()
         http.setUser(user, pass);
     http.setHost(host);
     int id = http.get(path);
+    Q_UNUSED(id);
 
     QTimer::singleShot(5000, &loop, SLOT(quit()));
     loop.exec();
diff --git a/tests/auto/qhttpnetworkconnection/tst_qhttpnetworkconnection.cpp b/tests/auto/qhttpnetworkconnection/tst_qhttpnetworkconnection.cpp
index ba1f8c8cca..ea4fddcc5e 100644
--- a/tests/auto/qhttpnetworkconnection/tst_qhttpnetworkconnection.cpp
+++ b/tests/auto/qhttpnetworkconnection/tst_qhttpnetworkconnection.cpp
@@ -1000,6 +1000,7 @@ public:
 public Q_SLOTS:
     void finishedSlot() {
         QHttpNetworkReply *reply = (QHttpNetworkReply*) sender();
+        Q_UNUSED(reply);
         receivedCount++;
 
         if (receivedCount == requestCount)
@@ -1046,6 +1047,7 @@ public:
 public Q_SLOTS:
     void finishedSlot() {
         QHttpNetworkReply *reply = (QHttpNetworkReply*) sender();
+        Q_UNUSED(reply);
         receivedCount++;
 
         if (receivedCount == requestCount)
diff --git a/tests/auto/qiodevice/tst_qiodevice.cpp b/tests/auto/qiodevice/tst_qiodevice.cpp
index 65ef9c65b3..804d0502f4 100644
--- a/tests/auto/qiodevice/tst_qiodevice.cpp
+++ b/tests/auto/qiodevice/tst_qiodevice.cpp
@@ -570,7 +570,7 @@ public:
         }
         return maxlen;
     }
-    qint64 writeData(const char *data, qint64 maxlen) {
+    qint64 writeData(const char * /* data */, qint64 /* maxlen */) {
         return -1;
     }
 
diff --git a/tests/auto/qitemselectionmodel/tst_qitemselectionmodel.cpp b/tests/auto/qitemselectionmodel/tst_qitemselectionmodel.cpp
index d91b068c5f..36c89a03fe 100644
--- a/tests/auto/qitemselectionmodel/tst_qitemselectionmodel.cpp
+++ b/tests/auto/qitemselectionmodel/tst_qitemselectionmodel.cpp
@@ -2289,7 +2289,7 @@ void tst_QItemSelectionModel::QTBUG5671_layoutChangedWithAllSelected()
     struct MyFilterModel : public QSortFilterProxyModel
     {     // Override sort filter proxy to remove even numbered rows.
         bool filtering;
-        virtual bool filterAcceptsRow( int source_row, const QModelIndex& source_parent ) const
+        virtual bool filterAcceptsRow( int source_row, const QModelIndex& /* source_parent */) const
         {
             return !filtering || !( source_row & 1 );
         }
@@ -2373,7 +2373,7 @@ public:
     }
 
 public slots:
-    void selectionChanged(const QItemSelection &selected, const QItemSelection &deselected)
+    void selectionChanged(const QItemSelection & /* selected */, const QItemSelection &deselected)
     {
         foreach(const QModelIndex &index, deselected.indexes()) {
             QVERIFY(!m_itemSelectionModel->selection().contains(index));
diff --git a/tests/auto/qlayout/tst_qlayout.cpp b/tests/auto/qlayout/tst_qlayout.cpp
index 2777c91e2b..f69a99c312 100644
--- a/tests/auto/qlayout/tst_qlayout.cpp
+++ b/tests/auto/qlayout/tst_qlayout.cpp
@@ -182,16 +182,16 @@ void tst_QLayout::smartMaxSize()
 
     int expectedIndex = 0;
     int regressionCount = 0;
-    for (int p = 0; p < sizeof(policies)/sizeof(QSizePolicy::Policy); ++p) {
+    for (size_t p = 0; p < sizeof(policies)/sizeof(QSizePolicy::Policy); ++p) {
         QSizePolicy sizePolicy;
         sizePolicy.setHorizontalPolicy(policies[p]);
-        for (int min = 0; min < sizeof(sizeCombinations)/sizeof(int); ++min) {
+        for (size_t min = 0; min < sizeof(sizeCombinations)/sizeof(int); ++min) {
             int minSize = sizeCombinations[min];
-            for (int max = 0; max < sizeof(sizeCombinations)/sizeof(int); ++max) {
+            for (size_t max = 0; max < sizeof(sizeCombinations)/sizeof(int); ++max) {
                 int maxSize = sizeCombinations[max];
-                for (int sh = 0; sh < sizeof(sizeCombinations)/sizeof(int); ++sh) {
+                for (size_t sh = 0; sh < sizeof(sizeCombinations)/sizeof(int); ++sh) {
                     int sizeHint = sizeCombinations[sh];
-                    for (int a = 0; a < sizeof(alignments)/sizeof(int); ++a) {
+                    for (size_t a = 0; a < sizeof(alignments)/sizeof(int); ++a) {
                         Qt::Alignment align = alignments[a];
                         QSize sz = qSmartMaxSize(QSize(sizeHint, 1), QSize(minSize, 1), QSize(maxSize, 1), sizePolicy, align);
                         int width = sz.width();
diff --git a/tests/auto/qnetworkaccessmanager_and_qprogressdialog/tst_qnetworkaccessmanager_and_qprogressdialog.cpp b/tests/auto/qnetworkaccessmanager_and_qprogressdialog/tst_qnetworkaccessmanager_and_qprogressdialog.cpp
index f7c5ca151d..04bc410097 100644
--- a/tests/auto/qnetworkaccessmanager_and_qprogressdialog/tst_qnetworkaccessmanager_and_qprogressdialog.cpp
+++ b/tests/auto/qnetworkaccessmanager_and_qprogressdialog/tst_qnetworkaccessmanager_and_qprogressdialog.cpp
@@ -65,9 +65,9 @@ class DownloadCheckWidget : public QWidget
 {
     Q_OBJECT
 public:
-    DownloadCheckWidget(QWidget *parent = 0) : QWidget(parent)
-                                    , progressDlg(this), netmanager(this)
-                                    , lateReadyRead(true)
+    DownloadCheckWidget(QWidget *parent = 0) :
+        QWidget(parent), lateReadyRead(true), zeroCopy(false),
+        progressDlg(this), netmanager(this)
     {
         progressDlg.setRange(1, 100);
         QMetaObject::invokeMethod(this, "go", Qt::QueuedConnection);
@@ -96,12 +96,14 @@ public slots:
     void dataReadProgress(qint64 done, qint64 total)
     {
         QNetworkReply *reply = qobject_cast<QNetworkReply *>(sender());
+        Q_UNUSED(reply);
         progressDlg.setMaximum(total);
         progressDlg.setValue(done);
     }
     void dataReadyRead()
     {
         QNetworkReply *reply = qobject_cast<QNetworkReply *>(sender());
+        Q_UNUSED(reply);
         lateReadyRead = true;
     }
     void finishedFromReply()
diff --git a/tests/auto/qpicture/tst_qpicture.cpp b/tests/auto/qpicture/tst_qpicture.cpp
index 10a5a83aa1..1e97502abf 100644
--- a/tests/auto/qpicture/tst_qpicture.cpp
+++ b/tests/auto/qpicture/tst_qpicture.cpp
@@ -81,7 +81,7 @@ void tst_QPicture::getSetCheck()
     // void QPictureIO::setPicture(const QPicture &)
     // const char * QPictureIO::format()
     // void QPictureIO::setFormat(const char *)
-    char *var2 = "PNG";
+    const char var2[] = "PNG";
     obj1.setFormat(var2);
     QCOMPARE(var2, obj1.format());
     obj1.setFormat((char *)0);
@@ -90,7 +90,7 @@ void tst_QPicture::getSetCheck()
 
     // const char * QPictureIO::parameters()
     // void QPictureIO::setParameters(const char *)
-    char *var3 = "Bogus data";
+    const char var3[] = "Bogus data";
     obj1.setParameters(var3);
     QCOMPARE(var3, obj1.parameters());
     obj1.setParameters((char *)0);
diff --git a/tests/auto/qprinter/tst_qprinter.cpp b/tests/auto/qprinter/tst_qprinter.cpp
index 6da7597938..b1c4c4ee3c 100644
--- a/tests/auto/qprinter/tst_qprinter.cpp
+++ b/tests/auto/qprinter/tst_qprinter.cpp
@@ -406,6 +406,8 @@ void tst_QPrinter::testMargins()
     QFETCH(int,  width);
     QFETCH(int,  height);
     QFETCH(bool, fullpage);
+    Q_UNUSED(width);
+    Q_UNUSED(height);
     QPrinter printer;
     QPainter *painter = 0;
     printer.setOutputFileName("silly");
diff --git a/tests/auto/qprocess/testGuiProcess/main.cpp b/tests/auto/qprocess/testGuiProcess/main.cpp
index 5550772dab..1df5dcf3e1 100644
--- a/tests/auto/qprocess/testGuiProcess/main.cpp
+++ b/tests/auto/qprocess/testGuiProcess/main.cpp
@@ -49,6 +49,7 @@ int main(int argc, char **argv)
     label.show();
 
     int c;
+    Q_UNUSED(c);
     fgetc(stdin); // block until fed
 
     qDebug("Process is running");
diff --git a/tests/auto/qprocess/testProcessSpacesArgs/main.cpp b/tests/auto/qprocess/testProcessSpacesArgs/main.cpp
index c6ea8cacd7..0652ddf0a2 100644
--- a/tests/auto/qprocess/testProcessSpacesArgs/main.cpp
+++ b/tests/auto/qprocess/testProcessSpacesArgs/main.cpp
@@ -62,7 +62,7 @@ int main(int argc, char ** argv)
     for (int i = 0; i < argc; ++i) {
         if (i)
             printf("|");
-        printf(argv[i]);
+        printf("%s", argv[i]);
     }
 #endif
     return 0;
diff --git a/tests/auto/qsortfilterproxymodel/tst_qsortfilterproxymodel.cpp b/tests/auto/qsortfilterproxymodel/tst_qsortfilterproxymodel.cpp
index 8e7f39335c..3250c0e9f0 100644
--- a/tests/auto/qsortfilterproxymodel/tst_qsortfilterproxymodel.cpp
+++ b/tests/auto/qsortfilterproxymodel/tst_qsortfilterproxymodel.cpp
@@ -3193,7 +3193,7 @@ public:
   }
 
 protected:
-  bool filterAcceptsColumn(int column, const QModelIndex &source_parent) const
+  bool filterAcceptsColumn(int column, const QModelIndex & /* source_parent */) const
   {
     return column % 2 != 0;
   }
diff --git a/tests/auto/qsql/tst_qsql.cpp b/tests/auto/qsql/tst_qsql.cpp
index fe8af9dd9c..7f3c63b510 100644
--- a/tests/auto/qsql/tst_qsql.cpp
+++ b/tests/auto/qsql/tst_qsql.cpp
@@ -140,7 +140,7 @@ void tst_QSql::basicDriverTest()
             continue;
         }
 
-        qDebug( qPrintable( QLatin1String( "Testing: " ) + tst_Databases::dbToString( db ) ) );
+        qDebug("Testing: %s", qPrintable(tst_Databases::dbToString( db )));
 
         QSqlRecord rInf = db.record( tableName );
         QCOMPARE( rInf.count(), 2 );
@@ -230,8 +230,8 @@ void tst_QSql::openErrorRecovery()
 
 	// force an open error
 	if ( db.open( "dummy130977", "doesnt_exist" ) ) {
-	    qDebug( qPrintable(QLatin1String("Promiscuous database server without access control - test skipped for ") +
-		    tst_Databases::dbToString( db )) );
+            qDebug("Promiscuous database server without access control - test skipped for %s",
+                  qPrintable(tst_Databases::dbToString( db )) );
 	    QVERIFY(1);
 	    continue;
 	}
diff --git a/tests/auto/qsqldatabase/tst_qsqldatabase.cpp b/tests/auto/qsqldatabase/tst_qsqldatabase.cpp
index 900eab7161..96ea3d95d7 100644
--- a/tests/auto/qsqldatabase/tst_qsqldatabase.cpp
+++ b/tests/auto/qsqldatabase/tst_qsqldatabase.cpp
@@ -212,7 +212,6 @@ private:
 
 // number of records to be inserted per testfunction
 static const int ITERATION_COUNT = 2;
-static int pkey = 1;
 
 //helper class for database specific tests
 struct FieldDef {
@@ -483,8 +482,9 @@ void tst_QSqlDatabase::tables()
 
 
     if (!q.exec("CREATE VIEW " + qtest_view + " as select * from " + qtest)) {
-        qDebug(QString("DBMS '%1' cannot handle VIEWs: %2").arg(
-                tst_Databases::dbToString(db)).arg(QString(tst_Databases::printError(q.lastError()))).toLatin1());
+        qDebug("DBMS '%s' cannot handle VIEWs: %s",
+               qPrintable(tst_Databases::dbToString(db)),
+               qPrintable(tst_Databases::printError(q.lastError())));
         views = false;
     }
 
@@ -1080,7 +1080,7 @@ void tst_QSqlDatabase::transaction()
     q.clear(); // for SQLite which does not allow any references on rows that shall be rolled back
     if (!db.rollback()) {
     if (db.driverName().startsWith("QMYSQL")) {
-        qDebug("MySQL: " + tst_Databases::printError(db.lastError()));
+        qDebug("MySQL: %s", qPrintable(tst_Databases::printError(db.lastError())));
         QSKIP("MySQL transaction failed ", SkipSingle); //non-fatal
     } else {
         QFAIL("Could not rollback transaction: " + tst_Databases::printError(db.lastError()));
@@ -1861,7 +1861,7 @@ void tst_QSqlDatabase::oci_serverDetach()
         }
     }
     if(!db.open())
-        qFatal(tst_Databases::printError(db.lastError(), db));
+        qFatal("%s", qPrintable(tst_Databases::printError(db.lastError(), db)));
 }
 
 void tst_QSqlDatabase::oci_xmltypeSupport()
diff --git a/tests/auto/qsqlquery/tst_qsqlquery.cpp b/tests/auto/qsqlquery/tst_qsqlquery.cpp
index be2087dfc8..eb7ae9184e 100644
--- a/tests/auto/qsqlquery/tst_qsqlquery.cpp
+++ b/tests/auto/qsqlquery/tst_qsqlquery.cpp
@@ -1558,7 +1558,7 @@ void tst_QSqlQuery::transaction()
 
     if ( !q.exec( "rollback" ) ) {
         if ( db.driverName().startsWith( "QMYSQL" ) ) {
-            qDebug( "MySQL: " + tst_Databases::printError( q.lastError() ) );
+            qDebug( "MySQL: %s", qPrintable(tst_Databases::printError( q.lastError() ) ));
             QSKIP( "MySQL transaction failed ", SkipSingle ); //non-fatal
         } else
             QFAIL( "Could not rollback transaction: " + tst_Databases::printError( q.lastError() ) );
@@ -1578,8 +1578,8 @@ void tst_QSqlQuery::transaction()
     QVERIFY_SQL( q2, exec( "select * from" + qtest + " where id = 42" ) );
 
     if ( q2.next() )
-        qDebug( QString( "DBMS '%1' doesn't support query based transactions with concurrent access" ).arg(
-                    tst_Databases::dbToString( db ) ).toLatin1() );
+        qDebug("DBMS '%s' doesn't support query based transactions with concurrent access",
+               qPrintable(tst_Databases::dbToString( db )));
 
     QVERIFY_SQL( q, exec( "commit" ) );
 
diff --git a/tests/auto/qsslsocket/tst_qsslsocket.cpp b/tests/auto/qsslsocket/tst_qsslsocket.cpp
index 507af5ebd5..576f2f6f0d 100644
--- a/tests/auto/qsslsocket/tst_qsslsocket.cpp
+++ b/tests/auto/qsslsocket/tst_qsslsocket.cpp
@@ -1561,6 +1561,7 @@ protected:
 #else
         bool ret = server.waitForNewConnection(20000);
 #endif
+        Q_UNUSED(ret);
 
         // delayed start of encryption
         QTest::qSleep(100);
@@ -1955,7 +1956,7 @@ void tst_QSslSocket::writeBigChunk()
     QByteArray data;
     data.resize(1024*1024*10); // 10 MB
     // init with garbage. needed so ssl cannot compress it in an efficient way.
-    for (int i = 0; i < data.size() / sizeof(int); i++) {
+    for (size_t i = 0; i < data.size() / sizeof(int); i++) {
         int r = qrand();
         data.data()[i*sizeof(int)] = r;
     }
diff --git a/tests/auto/qstatemachine/tst_qstatemachine.cpp b/tests/auto/qstatemachine/tst_qstatemachine.cpp
index 231cab03b2..56b0c9bf8a 100644
--- a/tests/auto/qstatemachine/tst_qstatemachine.cpp
+++ b/tests/auto/qstatemachine/tst_qstatemachine.cpp
@@ -4374,7 +4374,9 @@ void tst_QStateMachine::eventClassesExported()
 {
     // make sure this links
     QStateMachine::WrappedEvent *wrappedEvent = new QStateMachine::WrappedEvent(0, 0);
+    Q_UNUSED(wrappedEvent);
     QStateMachine::SignalEvent *signalEvent = new QStateMachine::SignalEvent(0, 0, QList<QVariant>());
+    Q_UNUSED(signalEvent);
 }
 
 void tst_QStateMachine::stopInTransitionToFinalState()
diff --git a/tests/auto/qstyle/tst_qstyle.cpp b/tests/auto/qstyle/tst_qstyle.cpp
index 0e66597d16..b844beb5a7 100644
--- a/tests/auto/qstyle/tst_qstyle.cpp
+++ b/tests/auto/qstyle/tst_qstyle.cpp
@@ -373,6 +373,8 @@ void tst_QStyle::testScrollBarSubControls(QStyle* style)
 #ifdef Q_OS_WINCE_WM
     if (qobject_cast<QWindowsMobileStyle*>(style) && qt_wince_is_smartphone())
         QSKIP("SmartPhone doesn't have scrollbar subcontrols.", SkipAll);
+#else
+    Q_UNUSED(style);
 #endif
 
     QScrollBar scrollBar;
diff --git a/tests/auto/qtcpsocket/tst_qtcpsocket.cpp b/tests/auto/qtcpsocket/tst_qtcpsocket.cpp
index 2e664935be..8590ff2154 100644
--- a/tests/auto/qtcpsocket/tst_qtcpsocket.cpp
+++ b/tests/auto/qtcpsocket/tst_qtcpsocket.cpp
@@ -430,7 +430,7 @@ void tst_QTcpSocket::socketsConstructedBeforeEventLoop()
     earlyConstructedSockets->endPoints[1]->close();
 }
 
-void tst_QTcpSocket::earlySocketBytesSent(qint64 bytes)
+void tst_QTcpSocket::earlySocketBytesSent(qint64 /* bytes */)
 {
     earlyBytesWrittenCount++;
 }
diff --git a/tests/auto/qtextdocumentlayout/tst_qtextdocumentlayout.cpp b/tests/auto/qtextdocumentlayout/tst_qtextdocumentlayout.cpp
index a7a9c056d2..0757e4f2da 100644
--- a/tests/auto/qtextdocumentlayout/tst_qtextdocumentlayout.cpp
+++ b/tests/auto/qtextdocumentlayout/tst_qtextdocumentlayout.cpp
@@ -260,6 +260,7 @@ void tst_QTextDocumentLayout::floatingTablePageBreak()
     QTextTableFormat tableFormat;
     tableFormat.setPosition(QTextFrameFormat::FloatLeft);
     QTextTable *table = cursor.insertTable(50, 1, tableFormat);
+    Q_UNUSED(table);
 
     // Make height of document 2/3 of the table, fitting the table into two pages
     QSizeF documentSize = doc->size();
diff --git a/tests/auto/qtextpiecetable/tst_qtextpiecetable.cpp b/tests/auto/qtextpiecetable/tst_qtextpiecetable.cpp
index 6f1b092709..12f17a890b 100644
--- a/tests/auto/qtextpiecetable/tst_qtextpiecetable.cpp
+++ b/tests/auto/qtextpiecetable/tst_qtextpiecetable.cpp
@@ -1108,6 +1108,8 @@ void tst_QTextPieceTable::removeWithChildFrame()
 
     QTextFrame *frame = table->insertFrame(1, 6, ffmt);
     QTextFrame *childFrame = table->insertFrame(3, 5, ffmt);
+    Q_UNUSED(frame);
+    Q_UNUSED(childFrame);
 
     // used to give a failing assertion
     table->remove(2, 5);
diff --git a/tests/auto/qthreadstorage/tst_qthreadstorage.cpp b/tests/auto/qthreadstorage/tst_qthreadstorage.cpp
index 2391c81b63..d3eea0cae2 100644
--- a/tests/auto/qthreadstorage/tst_qthreadstorage.cpp
+++ b/tests/auto/qthreadstorage/tst_qthreadstorage.cpp
@@ -320,7 +320,7 @@ public:
     static QBasicAtomicInt count;
     inline SPointer() { count.ref(); }
     inline ~SPointer() { count.deref(); }
-    inline SPointer(const SPointer &other) { count.ref(); }
+    inline SPointer(const SPointer & /* other */) { count.ref(); }
 };
 QBasicAtomicInt SPointer::count = Q_BASIC_ATOMIC_INITIALIZER(0);
 
diff --git a/tests/auto/qtreeview/tst_qtreeview.cpp b/tests/auto/qtreeview/tst_qtreeview.cpp
index 1f0c2cee7e..f03e07ab38 100644
--- a/tests/auto/qtreeview/tst_qtreeview.cpp
+++ b/tests/auto/qtreeview/tst_qtreeview.cpp
@@ -3800,7 +3800,7 @@ class Model_11466 : public QAbstractItemModel
 {
     Q_OBJECT
 public:
-    Model_11466(QObject *parent) :
+    Model_11466(QObject * /* parent */) :
         m_block(false)
     {
         // set up the model to have two top level items and a few others
@@ -3817,7 +3817,7 @@ public:
         return 2; // two top level items
     }
 
-    int columnCount(const QModelIndex &parent) const
+    int columnCount(const QModelIndex & /* parent */) const
     {
         return 2;
     }
diff --git a/tests/benchmarks/gui/painting/qpainter/tst_qpainter.cpp b/tests/benchmarks/gui/painting/qpainter/tst_qpainter.cpp
index 2d33825e5c..895d7bff63 100644
--- a/tests/benchmarks/gui/painting/qpainter/tst_qpainter.cpp
+++ b/tests/benchmarks/gui/painting/qpainter/tst_qpainter.cpp
@@ -924,6 +924,7 @@ void tst_QPainter::fillPrimitives_helper(QPainter *p, PrimitiveType type, Primit
     case Primitive_Float_RectPath:      QBENCHMARK { p->drawPath(s->f_path_rect); } break;
     case Primitive_Float_2RectPath:     QBENCHMARK { p->drawPath(s->f_path_2rects); } break;
     case Primitive_Float_EllipsePath:   QBENCHMARK { p->drawPath(s->f_path_ellipse); } break;
+    case Primitive_Last_Primitive: break;
     }
 }
 
diff --git a/tests/benchmarks/gui/painting/qtracebench/tst_qtracebench.cpp b/tests/benchmarks/gui/painting/qtracebench/tst_qtracebench.cpp
index e71cfc6413..58566fe6a2 100644
--- a/tests/benchmarks/gui/painting/qtracebench/tst_qtracebench.cpp
+++ b/tests/benchmarks/gui/painting/qtracebench/tst_qtracebench.cpp
@@ -149,7 +149,7 @@ void ReplayWidget::paintEvent(QPaintEvent *)
     }
 }
 
-void ReplayWidget::resizeEvent(QResizeEvent *event)
+void ReplayWidget::resizeEvent(QResizeEvent * /* event */)
 {
     visibleUpdates.clear();
 
diff --git a/tests/benchmarks/gui/text/qtext/main.cpp b/tests/benchmarks/gui/text/qtext/main.cpp
index 01e8c46bd8..97abc93b44 100644
--- a/tests/benchmarks/gui/text/qtext/main.cpp
+++ b/tests/benchmarks/gui/text/qtext/main.cpp
@@ -411,6 +411,7 @@ void tst_QText::paintLayoutToPixmap_painterFill()
 void tst_QText::document()
 {
     QTextDocument *doc = new QTextDocument;
+    Q_UNUSED(doc)
 
     QBENCHMARK {
         QTextDocument *doc = new QTextDocument;
@@ -453,6 +454,7 @@ void tst_QText::paintDocToPixmap_painterFill()
 void tst_QText::control()
 {
     QTextControl *control = new QTextControl(m_shortLorem);
+    Q_UNUSED(control);
 
     QBENCHMARK {
         QTextControl *control = new QTextControl;
diff --git a/tests/benchmarks/network/access/qnetworkreply/tst_qnetworkreply.cpp b/tests/benchmarks/network/access/qnetworkreply/tst_qnetworkreply.cpp
index 9a07aa4940..a96fa63b5a 100644
--- a/tests/benchmarks/network/access/qnetworkreply/tst_qnetworkreply.cpp
+++ b/tests/benchmarks/network/access/qnetworkreply/tst_qnetworkreply.cpp
@@ -501,7 +501,7 @@ void tst_qnetworkreply::echoPerformance()
     QByteArray data;
     data.resize(1024*1024*10); // 10 MB
     // init with garbage. needed so ssl cannot compress it in an efficient way.
-    for (int i = 0; i < data.size() / sizeof(int); i++) {
+    for (size_t i = 0; i < data.size() / sizeof(int); i++) {
         int r = qrand();
         data.data()[i*sizeof(int)] = r;
     }