*/
public void testChartHelper_Null() {
String region = "Central"; //$NON-NLS-1$
ArrayList messages = new ArrayList();
SimpleParameterProvider parameters = new SimpleParameterProvider();
parameters.setParameter( "image-width", "450" ); //$NON-NLS-1$ //$NON-NLS-2$
parameters.setParameter( "image-height", "300" ); //$NON-NLS-1$ //$NON-NLS-2$
parameters.setParameter( "REGION", region ); //$NON-NLS-1$
parameters.setParameter( "outer-params", "REGION" ); //$NON-NLS-1$ //$NON-NLS-2$
parameters.setParameter( "inner-param", "DEPARTMENT" ); //$NON-NLS-1$ //$NON-NLS-2$
parameters.setParameter(
"drill-url", "SampleDashboard.jsp?region=" + region + "&department={DEPARTMENT}&measure={measure}" ); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
parameters.setParameter( "series-name", "measure" ); //$NON-NLS-1$ //$NON-NLS-2$
parameters.setParameter( "chart-type", "" ); //$NON-NLS-1$ //$NON-NLS-2$
StringBuffer content = new StringBuffer();
StandaloneSession session =
new StandaloneSession( Messages.getInstance().getString( "BaseTest.DEBUG_JUNIT_SESSION" ) ); //$NON-NLS-1$
ChartHelper.doChart( "/samples/dashboard/departments.widget.xml", parameters, content, session, messages, null ); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
try {