report.addExpression(new EventMonitorFunction());
report.addExpression(new TotalItemCountVerifyFunction());
report.setDataFactory(new TableDataFactory("default", new AggregateTestDataTableModel()));
report.setQuery("default");
final RelationalGroup rootGroup = (RelationalGroup) report.getRootGroup();
rootGroup.clearFields();
rootGroup.addField("Continent");
rootGroup.setName("Continent Group");
final TotalItemCountFunction f = new TotalItemCountFunction();
f.setName("continent-total-gc");