diff --git a/src/barchart/barchartmodel.cpp b/src/barchart/barchartmodel.cpp
index 61f6716..c07ab78 100644
--- a/src/barchart/barchartmodel.cpp
+++ b/src/barchart/barchartmodel.cpp
@@ -103,8 +103,7 @@ qreal BarChartModel::min() const
 
 qreal BarChartModel::max() const
 {
-    Q_ASSERT(m_dataModel.count() > 0);
-
+    if (m_dataModel.count() == 0) return 0;
     // TODO: make min and max members and update them when data changes.
     // This is slower since they are checked every time, even if data is same since previous call.
     qreal max = INT_MIN;
diff --git a/test/auto/qchart/tst_qchart.cpp b/test/auto/qchart/tst_qchart.cpp
index c744827..77742d5 100644
--- a/test/auto/qchart/tst_qchart.cpp
+++ b/test/auto/qchart/tst_qchart.cpp
@@ -203,7 +203,7 @@ void tst_QChart::addSeries()
     m_view->show();
     QTest::qWaitForWindowShown(m_view);
     if(!axis) axis = m_chart->axisY();
-    //m_chart->addSeries(series,axis);
+    m_chart->addSeries(series,axis);
     QCOMPARE(m_chart->axisY(series),axis);
 }
 
@@ -222,7 +222,6 @@ void tst_QChart::animationOptions()
     QFETCH(QChart::AnimationOption, animationOptions);
     m_chart->setAnimationOptions(animationOptions);
     QCOMPARE(m_chart->animationOptions(), animationOptions);
-
 }
 
 void tst_QChart::axisX_data()