tests/auto/widgets: use QCOMPARE(., nullptr)

.. instead of manually casted 0s.

QCOMPARE(., nullptr) was added for Qt 5.8. Make use of the new API.

In tst_qwidget.cpp, as a drive-by, change
   qApp->focusWidget() -> QApplication::focusWidget()

Change-Id: I1331b8916b026d48e01534d1ed0b3d72f3f3d50c
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>

1 files changed, 2 insertions, 2 deletions

diff --git a/tests/auto/widgets/graphicsview/qgraphicsproxywidget/tst_qgraphicsproxywidget.cpp b/tests/auto/widgets/graphicsview/qgraphicsproxywidget/tst_qgraphicsproxywidget.cpp
index d99c056abe..65c9938f89 100644
--- a/tests/auto/widgets/graphicsview/qgraphicsproxywidget/tst_qgraphicsproxywidget.cpp
+++ b/tests/auto/widgets/graphicsview/qgraphicsproxywidget/tst_qgraphicsproxywidget.cpp
@@ -482,7 +482,7 @@ void tst_QGraphicsProxyWidget::setWidget()
         QCOMPARE((qreal)bottom, rbottom);
     } else {
         // proxy shouldn't mess with the widget if it can't insert it.
-        QCOMPARE(proxy->widget(), (QWidget*)0);
+        QCOMPARE(proxy->widget(), nullptr);
         QCOMPARE(proxy->acceptHoverEvents(), false);
         if (subWidget) {
             QVERIFY(!subWidget->testAttribute(Qt::WA_DontShowOnScreen));
@@ -493,7 +493,7 @@ void tst_QGraphicsProxyWidget::setWidget()
     }
 
     if (widgetExists) {
-        QCOMPARE(existingSubWidget->parent(), static_cast<QObject*>(0));
+        QCOMPARE(existingSubWidget->parent(), nullptr);
         QVERIFY(!existingSubWidget->testAttribute(Qt::WA_DontShowOnScreen));
         QVERIFY(!existingSubWidget->testAttribute(Qt::WA_QuitOnClose));
     }